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J
ou
r
o
f
A
dv
R
e
s
ea
r
c
h
i
n
D
yn
a
m
i
ca
l
&
C
on
t
r
o
l
S
y
s
t
e
m
s
,
V
o
l
.
10
,
02
-
S
p
ec
i
a
l
I
ss
u
e
,
2018
I
n
f
l
u
e
n
ce
o
f
M
i
x
i
n
g
F
i
n
e
P
o
w
d
er
o
f
T
un
g
s
t
e
n
(
W
)
a
nd
N
i
c
k
e
l
(
N
i
)
U
p
o
n
M
ec
h
a
n
i
c
a
l
B
e
h
av
i
o
r
o
f
R
e
s
i
n
(
E
p
oxy
)
1*
S
a
l
w
a
A
.
A
b
e
d
,
2
A
h
m
a
d
A
.
K
h
a
l
a
f
,
3
M
a
li
a
M
.
F
a
r
h
a
n
,
4
H
a
m
i
d
M
.
M
a
h
a
n
1
,
2
,
4
M
ec
han
i
c
a
l
D
e
pa
r
t
m
e
n
t
,
B
aqubah
T
ec
hn
i
c
a
l
I
n
s
tit
u
t
e
,
M
i
dd
l
e
T
ec
hn
i
c
a
l
U
n
i
ve
rs
it
y
,
B
aghdad
-I
r
aq
3
T
ec
hn
i
c
a
l
c
o
ll
e
g
e
B
agdad
,
M
i
dd
l
e
T
ec
hn
i
c
a
l
U
n
i
ve
rs
it
y
(
M
T
U
)
,
B
aghdad
,
I
r
aq
.
E
m
a
il
:
1
s
a
l
w
a77ha
@
g
m
a
il
.
c
o
m
,
2
ah
m
ad1965abba
s
@
g
m
a
il
.
c
o
m
,
3
m
a
li
y
a59
@
y
ahoo
.
c
o
m
,
4
ha
m
i
d1980
@
m
t
u
.
e
du
.
i
q
A
b
s
t
r
a
c
t-
P
r
e
s
e
n
t
p
a
p
e
r
d
ea
l
s
w
it
h
a
f
i
n
e
po
w
d
e
r
o
f
t
ung
s
t
e
n
(
W
)
a
nd
n
i
c
k
e
l
(
N
i
)
r
e
i
n
f
o
r
ce
d
e
poxy
(
S
i
k
a
du
r
R
-
52
)
i
n
d
i
ff
e
r
e
n
t
w
e
i
gh
t
p
e
r
ce
n
t
a
g
e
(
0
%
,
2
%
,
5
%
)
.
M
ec
h
a
n
i
ca
l
t
e
s
t
s
c
on
s
i
s
t
o
f
t
e
n
s
il
e
;
f
l
e
xu
r
a
l;
i
m
p
ac
t;
h
a
r
dn
e
ss
w
h
e
r
e
i
m
p
l
e
m
e
n
t
s
on
t
h
e
c
o
m
po
s
it
e
s
p
ec
i
m
e
n
s
.
T
h
e
i
n
f
l
u
e
n
ce
o
f
f
ill
e
r
c
on
s
i
s
t
s
o
f
t
w
o
m
e
t
a
l
s
(
W
)
a
nd
(
N
i
)
on
m
ec
h
a
n
i
ca
l
b
e
h
a
v
i
o
r
o
f
e
poxy
(
S
i
k
a
du
r
R
-
52
)
w
a
s
s
t
ud
i
e
d
.
T
h
e
s
t
udy
d
ea
l
w
it
h
t
w
o
t
yp
e
s
o
f
m
i
x
t
u
r
e
s
o
f
s
p
ec
i
m
e
n
s
,
t
h
e
f
i
r
s
t
on
e
c
on
s
i
s
t
s
o
f
e
poxy
a
nd
on
e
o
f
m
e
t
a
l
f
ill
e
r
(
n
i
c
k
e
l
)
o
r
(
t
ung
s
t
e
n
)
a
l
on
e
i
n
d
i
ff
e
r
e
n
t
w
e
i
gh
t
p
e
r
ce
n
t
a
g
e
(
0
%
,
2
%
,
5
%
)
a
nd
t
h
e
s
ec
ond
d
ea
l
w
it
h
m
e
t
a
l
f
ill
e
r
s
o
f
(
N
i
&
W
)
m
i
x
i
ng
t
og
e
t
h
e
r
t
o
s
t
udy
t
h
e
i
n
f
l
u
e
n
ce
m
i
x
t
u
r
e
i
n
m
ec
h
a
n
i
ca
l
b
e
h
a
v
i
o
r
o
f
e
poxy
.
A
ll
t
e
s
t
s
ca
rr
i
e
d
ou
t
a
t
r
oo
m
t
e
m
p
e
r
a
t
u
r
e
a
nd
acc
o
r
d
i
ng
t
o
A
S
T
M
s
t
a
nd
a
r
d
s
.
T
h
e
r
e
s
u
lt
s
i
nd
i
ca
t
e
d
i
m
p
r
ov
e
m
e
n
t
i
n
m
ec
h
a
n
i
ca
l
b
e
h
a
v
i
o
r
o
f
e
poxy
(
S
i
k
a
du
r-
52
)
e
s
p
ec
i
a
ll
y
a
t
s
p
ec
i
m
e
n
p
r
e
p
a
r
e
d
o
f
c
o
m
po
s
it
e
(
5
%
w
t
)
o
f
(
W
+
N
i
)
ca
s
ti
ng
t
og
e
t
h
e
r
m
ea
n
(
2
.
5
%
w
t
o
f
W
a
nd
2
.
5
%
N
i
)
.
K
e
y
w
o
r
d
s
:
R
e
s
i
n
(
e
poxy
)
,
T
ung
s
t
e
n
(
W
)
,
N
i
c
k
e
l
(
N
i
)
,
M
ec
h
a
n
i
ca
l
P
r
op
e
r
ti
e
s
.
1.
I
n
t
r
o
du
c
t
i
o
n
E
poxy
r
e
s
i
n
i
s
a
f
o
r
m
o
f
t
h
e
r
m
o
s
e
tti
ng
po
l
y
m
e
r
s
,
o
f
t
e
n
w
it
h
f
a
vo
r
a
b
l
e
m
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
(
M
.
P
)
a
nd
h
i
gh
t
h
e
r
m
a
l
a
nd
c
h
e
m
i
ca
l
r
e
s
i
s
t
a
n
ce
.
E
poxy
h
a
s
a
w
i
d
e
r
a
ng
e
o
f
a
pp
li
ca
ti
on
s
i
n
c
l
ud
i
ng
m
e
t
a
l
c
o
a
ti
ng
s
,
u
s
e
o
f
e
l
ec
t
r
on
i
c
s
,
p
a
i
n
t
,
ae
r
o
s
p
ace
,
A
u
t
o
m
o
ti
v
e
,
f
i
b
e
r-r
e
i
n
f
o
r
ce
d
p
l
a
s
ti
c
m
a
t
e
r
i
a
l
s
a
nd
s
t
r
u
c
t
u
r
a
l
a
dh
e
s
i
v
e
s
.
T
h
e
m
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
(
M
.
P
)
o
f
a
ny
r
e
s
i
n
ca
n
b
e
d
e
v
e
l
op
e
d
by
m
i
x
i
ng
w
it
h
f
ill
e
r
m
a
t
e
r
i
a
l
s
a
nd
t
h
e
n
a
t
u
r
e
o
f
f
ill
e
r
m
a
t
e
r
i
a
l
s
d
e
p
e
nd
on
t
h
e
need and desire of natural of production.
W
S
K
h
a
r
a
t
e
t
a
l
.
(
2016
)[
1
]
h
a
v
e
e
v
a
l
u
a
t
e
d
m
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
o
f
e
poxy
b
a
s
e
d
c
o
m
po
s
it
e
s
by
m
i
x
i
ng
w
it
h
p
a
r
ti
c
u
l
a
t
e
f
ill
e
r
s
B
o
r
on
C
a
r
b
i
d
e
(
B
4
C
)
a
nd
t
ung
s
t
e
n
(
W
S
2
)
.
T
h
e
r
e
s
u
lt
s
w
e
r
e
t
o
i
n
c
r
ea
s
e
t
h
e
w
e
i
gh
t
r
a
ti
o
t
h
e
h
a
r
dn
e
ss
a
nd
t
e
n
s
il
e
s
t
r
e
ng
t
h
w
e
r
e
i
n
c
r
ea
s
e
d
up
t
o
2
.
5
w
e
i
gh
t
%
B
4
C
&
4
w
t
%
W
S
2
.
V
ij
a
y
B
R
e
t
a
l
.
(
2016
)[
2
]
d
ea
l
w
it
h
tit
a
n
i
u
m
d
i
ox
i
d
e
(
T
i
O
2
)
a
nd
t
ung
s
t
e
n
ca
r
b
i
d
e
(
W
C
)
e
poxy
b
a
s
e
d
i
m
p
l
e
m
e
n
t
w
it
h
t
h
r
ee
d
i
ff
e
r
e
n
t
w
t
.
%
(
0
%
,
5
%
,
10
%
)
w
e
r
e
p
r
e
p
a
r
e
d
by
ca
s
ti
ng
t
ec
hno
l
ogy
i
n
w
ood
e
n
t
e
m
p
l
a
t
e
s
.
T
h
e
t
e
n
s
il
e
a
nd
f
l
e
xu
r
a
l
s
t
r
e
ng
t
h
t
o
r
e
i
n
f
o
r
ce
d
a
nd
un
-r
e
i
n
f
o
r
ce
d
e
poxy
w
e
r
e
s
t
ud
i
e
d
a
t
r
oo
m
t
e
m
p
e
r
a
t
u
r
e
.
T
h
e
r
e
s
u
lt
s
i
nd
i
ca
t
e
d
i
n
c
r
ea
s
i
ng
i
n
t
e
n
s
il
e
a
nd
f
l
e
xu
r
a
l
s
t
r
e
ng
t
h
f
o
r
(
W
C
)
r
e
i
n
f
o
r
ce
d
e
poxy
c
o
m
po
s
it
e
s
w
h
e
r
ea
s
T
i
O
2
r
e
i
n
f
o
r
ce
d
i
n
t
e
n
s
il
e
s
t
r
e
ng
t
h
f
o
r
bo
t
h
w
e
i
gh
t
(
5
%
a
nd10
%
)
.
D
yn
a
m
i
c
b
e
h
a
v
i
o
r
s
t
ud
i
e
d
by
T
.
J
.
V
og
l
e
r
e
t
a
l
.
O
f
t
ung
s
t
e
n
ca
r
b
i
d
e
a
nd
a
l
u
m
i
n
a
f
ill
e
d
e
poxy
c
o
m
po
s
it
e
s
[
3
]
.
I
n
a
no
t
h
e
r
s
t
udy
t
h
e
e
ff
ec
t
o
f
a
dd
iti
on
f
ill
e
r
o
f
g
r
a
ph
it
e
on
m
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
o
f
e
poxy
c
o
m
po
s
it
e
s
w
a
s
s
t
ud
i
e
d
a
nd
t
h
e
r
e
s
u
lt
s
s
ho
w
i
m
p
r
ov
e
d
i
n
m
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
e
x
ce
p
t
b
e
nd
i
ng
p
r
op
e
r
ti
e
s
t
e
nd
t
o
d
ec
r
ea
s
e
w
it
h
i
n
c
r
ea
s
i
ng
f
ill
e
r
c
on
t
e
n
t
o
f
g
r
a
ph
it
e
.
[
4
]
.
C
a
r
bon
f
i
b
e
r
r
e
i
n
f
o
r
ce
d
e
poxy
m
a
t
r
i
x
c
o
m
po
s
it
e
s
s
t
ud
i
e
d
i
n
p
a
p
e
r
[
5
]
a
nd
g
l
a
ss
f
i
b
e
r
r
e
i
n
f
o
r
ce
d
e
poxy
c
o
m
po
s
it
e
f
ill
e
d
w
it
h
d
i
ff
e
r
e
n
t
t
yp
e
s
o
f
f
ill
e
r
s
(
g
r
a
ph
it
e
,
s
ili
c
on
ca
r
b
i
d
e
)
a
t
d
i
ff
e
r
e
n
t
ww
e
i
gh
t
p
e
r
ce
n
t
a
g
e
a
l
s
o
s
t
ud
i
e
d
i
n
p
a
p
e
r
[
6
]
.
T
h
e
r
e
s
u
lt
s
bo
t
h
o
f
t
h
e
m
r
e
s
p
ec
ti
v
e
l
y
,
i
m
p
r
ov
e
m
e
n
t
i
n
m
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
,
i
m
p
r
ov
e
d
i
n
t
oughn
e
ss
o
f
g
l
a
ss
e
poxy
c
o
m
po
s
it
e
s
a
nd
s
a
m
p
l
e
f
a
il
e
d
und
e
r
t
e
n
s
il
e
a
nd
b
e
nd
i
ng
a
nd
m
od
e
-I
fr
ac
t
u
r
e
.
T
e
n
s
il
e
s
t
r
e
ng
t
h
a
nd
w
ea
r
l
o
ss
g
r
a
du
a
ll
y
r
e
du
ce
d
w
it
h
t
h
e
i
n
c
r
ea
s
e
o
f
a
l
u
m
i
n
i
u
m
a
nd
c
opp
e
r
f
ill
e
r
r
e
i
n
f
o
r
ce
d
e
poxy
c
o
m
po
s
it
e
s
[
7
]
.
T
h
e
i
m
p
r
ov
e
m
e
n
t
o
f
m
ec
h
a
n
i
ca
l
p
r
op
e
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ti
e
s
o
f
n
a
t
u
r
a
l
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b
e
r
r
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n
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l
y
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po
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it
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w
a
s
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t
ud
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by
V
i
n
a
y
K
u
m
a
r
P
a
t
e
l
e
t
a
l
.
[
8
]
.
T
h
e
s
t
udy
d
ea
l
w
it
h
t
h
e
f
a
b
r
i
ca
ti
on
a
nd
phy
s
i
ca
l
,
m
ec
h
a
n
i
ca
l
o
f
t
h
r
ee
body
a
b
r
a
s
i
v
e
w
ea
r
a
nd
w
a
t
e
r
a
b
s
o
r
b
a
ti
on
b
e
h
a
v
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o
r
o
f
n
a
t
u
r
a
l
f
i
b
e
r
r
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n
f
o
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ce
d
po
l
y
e
s
t
e
r
c
o
m
po
s
it
e
s
w
it
h
a
nd
w
it
hou
t
a
dd
iti
on
o
f
m
i
c
r
o
-
f
ill
e
r
o
f
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l
2
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3
,
C
a
C
O
3
a
nd
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i
O
2
.
T
h
e
r
e
s
u
lt
s
s
ho
w
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dd
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c
r
o
-
p
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l
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m
p
r
ov
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m
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n
t
t
h
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phy
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ca
l
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h
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b
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s
t
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po
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it
e
s
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d
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ce
nd
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r
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f
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a
C
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l
2
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3
,
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i
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2
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h
il
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s
ea
r
c
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e
r
H
a
lil
B
.
K
a
yb
a
l
e
t
a
l
.
[
9
]
i
m
p
r
ov
e
t
h
e
i
m
p
ac
t
s
t
r
e
ng
t
h
o
f
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bon
f
i
b
e
r
r
e
i
n
f
o
r
ce
d
2290
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C
o
rr
e
s
pond
i
ng
A
u
t
ho
r
:
Sa
l
w
a
A
.
A
b
e
d
,
E
m
a
il
i
d
:
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a
l
w
a77ha
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g
m
a
il
.
c
o
m
,
A
r
ti
c
l
e
H
i
s
t
o
r
y
:
R
ece
i
v
e
d
:
Oct
20
,
2018
,
,
A
cce
p
t
e
d
:
Nov
20
,
2018
J
ou
r
o
f
A
dv
R
e
s
ea
r
c
h
i
n
D
yn
a
m
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ca
l
&
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on
t
r
o
l
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y
s
t
e
m
s
,
V
o
l
.
10
,
02
-
S
p
ec
i
a
l
I
ss
u
e
,
2018
e
poxy
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dd
iti
on
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nop
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r
ti
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l
e
s
(
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l
2
O
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ny
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v
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m
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t
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p
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ov
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h
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n
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ca
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nd
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ff
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e
n
t
c
ond
iti
on
o
f
e
poxy
r
e
s
i
n
[
10
-
23
]
.
.
I
n
p
r
e
s
e
n
t
p
a
p
e
r
e
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m
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t
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l
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t
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ny
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m
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r
s
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n
f
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ce
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ng
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l
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ill
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h
a
n
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ca
l
b
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h
a
v
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o
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o
f
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yp
e
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S
i
k
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du
r-
52
)
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h
e
f
ill
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li
k
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s
t
e
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nd
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g
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%
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i
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t
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ond
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l
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h
t
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+
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og
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h
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a
t
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l
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nd
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r
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h
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r
d
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t
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k
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r
R
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t
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t
p
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p
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r
.
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h
e
r
a
ti
o
o
f
h
a
r
d
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n
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r
a
nd
e
poxy
w
a
s
1
:
2
.
T
h
e
a
dd
i
ng
o
f
h
a
r
d
e
n
e
r
w
a
s
s
l
o
w
du
r
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ng
s
ti
rr
i
ng
.
E
poxy
(
S
i
k
a
du
r
R
-
52
)
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r
odu
c
ti
on
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f
c
o
m
p
a
ny
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S
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k
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a
p
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k
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m
Y
a
s
a
ll
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n
A
.
S
/
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s
t
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nbu
l
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e
r
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O
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g
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S
A
n
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o
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s
i/
T
u
r
k
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y
e
)
.
2
.
2
.
F
ill
er
M
a
t
er
i
a
l
s
A
nd
Sp
ec
i
m
e
n
s
.
T
h
e
m
a
t
e
r
i
a
l
s
o
f
f
ill
e
r
w
e
r
e
u
s
e
d
i
n
t
h
e
p
r
e
s
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t
p
a
p
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c
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s
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s
t
o
f
t
w
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d
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r
m
e
t
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l
m
a
t
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r
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a
l
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f
t
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s
t
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nd
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i
c
k
e
l
(
N
i
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T
h
e
pu
r
it
y
r
a
ti
o
f
o
r
bo
t
h
o
f
t
h
e
m
w
a
s
(
99
%
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nd
p
r
odu
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ti
on
o
f
t
h
e
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o
m
p
a
ny
o
f
(
B
DH
c
h
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m
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ca
l
s
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d
poo
l
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E
ng
l
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nd
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h
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n
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t
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r
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l
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s
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m
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l
v
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t
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t
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f
m
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t
u
r
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n
d
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ff
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r
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t
p
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ce
n
t
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g
e
w
e
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gh
t
(
0
%
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2
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%
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s
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ung
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n
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k
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l
(
N
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h
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h
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m
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m
p
l
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f
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r
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p
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r
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s
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lt
w
h
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c
h
t
yp
e
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s
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ff
ec
ti
ng
m
o
r
e
t
h
a
n
a
no
t
h
e
r
on
(
M
.
P
)
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f
e
poxy
a
t
e
nd
i
ng
.
T
a
b
l
e
(
1
)
s
ho
w
s
t
h
e
c
on
t
e
n
t
c
o
m
po
s
it
e
o
f
s
p
ec
i
m
e
n
s
.
T
h
e
ti
m
e
o
f
c
u
r
i
ng
w
a
s
a
bou
t
24
hou
r
s
a
t
r
oo
m
t
e
m
p
e
r
a
t
u
r
e
.
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ll
p
r
e
p
a
r
e
d
s
p
ec
i
m
e
n
s
d
e
p
e
nd
on
t
h
e
d
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m
e
n
s
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on
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f
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S
T
M
s
t
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nd
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r
d
s
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o
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v
e
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s
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l
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ac
h
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n
e
D
638
-
t
yp
e
(
1
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a
t
d
i
m
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n
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i
on
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x
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l
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r
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l
t
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t
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,
s
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a
r
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m
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ac
t
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t
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w
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on
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a
nd
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a
r
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t
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2240
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it
h
d
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m
e
n
s
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on
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10x10x5
)
mm
.
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i
gu
r
e
(
1
)
s
ho
w
s
t
h
e
a
ll
d
i
m
e
n
s
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on
s
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f
s
p
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m
e
n
s
a
nd
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i
gu
r
e
(
2
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ho
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s
t
h
e
s
h
a
p
e
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f
p
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r
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m
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ea
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e
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a
t
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f
o
r
a
p
e
r
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od
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f
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s
[
24
]
.
T
a
b
l
e
(
1
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s
ho
w
s
t
h
e
c
on
t
e
n
t
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f
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s
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o
.
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f
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m
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n
s
Epoxy
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i
c
k
e
l
(
N
i
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t
%
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n
(
W
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W
t
%
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-
-
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5
-
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1
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r
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(
1
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a
ll
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p
ec
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m
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n
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d
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m
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s
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on
2291
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C
o
rr
e
s
pond
i
ng
A
u
t
ho
r
:
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l
w
a
A
.
A
b
e
d
,
E
m
a
il
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d
:
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a
l
w
a77ha
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g
m
a
il
.
c
o
m
,
A
r
ti
c
l
e
H
i
s
t
o
r
y
:
R
ece
i
v
e
d
:
Oct
20
,
2018
,
,
A
cce
p
t
e
d
:
Nov
20
,
2018
F
i
gu
r
e
(
2
)
s
ho
w
s
t
h
e
s
h
a
p
e
o
f
p
r
e
p
a
r
e
d
m
o
l
d
3.
T
h
e
R
e
s
u
l
t
s
O
f
E
x
p
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m
e
n
t
a
l
P
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r
t
.
T
h
e
s
p
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m
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s
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e
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n
i
v
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r
s
it
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ghd
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ng
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o
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t
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nd
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r
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s
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h
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t
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n
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t
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t
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f
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r
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h
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e
(
2
)
s
ho
w
s
t
h
e
e
xp
e
r
i
m
e
n
t
a
l
r
e
s
u
lt
s
.
T
a
b
l
e
2
s
ho
w
s
t
h
e
e
xp
e
r
i
m
e
n
t
a
l
r
e
s
u
lt
s
S
a
m
p
l
e
N
o
.
H
a
r
dn
e
ss
T
e
n
s
il
e
strength
M
P
a
F
l
e
xu
r
a
l
strength
M
p
a
I
m
p
ac
t
strength
K
J
/
mm
2
X1
76.8
30.00
72.35
9.93
X2
80.33
15.99
47.77
13
X3
79.73
17.87
52.37
8.21
X4
80.53
20.64
57.30
5.42
X5
79
27.66
50.15
6.5
X6
81
31.30
74.45
14.75
X7
79.13
24.83
55.01
4.23
3.1.
T
e
n
s
il
e
S
t
re
n
g
t
h
I
t
i
s
i
m
po
r
t
a
n
t
t
o
d
e
t
e
r
m
i
n
e
t
h
e
a
b
ilit
y
o
f
s
t
r
u
c
t
u
r
a
l
a
g
a
i
n
s
t
t
e
n
s
i
on
l
o
a
d
i
ng
.
T
h
i
s
t
e
s
ti
ng
i
s
v
e
r
y
i
m
po
r
t
a
n
t
t
o
und
e
r
s
t
a
nd
t
h
e
b
e
h
a
v
i
o
r
o
f
c
o
m
po
s
it
e
m
a
t
e
r
i
a
l
und
e
r
li
k
e
l
o
a
d
i
ng
.
T
h
e
s
p
ec
i
m
e
n
s
o
f
t
e
n
s
il
e
t
e
s
t
e
d
by
un
i
v
e
r
s
a
l
t
e
s
ti
ng
m
ac
h
i
n
e
acc
o
r
d
i
ng
t
o
A
S
T
M
638
s
t
a
nd
a
r
d
s
.
F
i
gu
r
e
(
3
)
s
ho
w
s
t
h
e
r
e
l
a
ti
on
b
e
t
w
ee
n
t
e
n
s
il
e
s
t
r
e
ng
t
h
o
f
e
poxy
(
S
i
k
a
du
r
a
R
-
52
)
w
it
h
d
i
ff
e
r
e
n
t
w
e
i
gh
t
(
0
%
,
2
%
,
5
%
)
o
f
f
ill
e
r
s
f
o
r
s
e
v
e
n
s
p
ec
i
m
e
n
s
a
nd
i
s
ob
s
e
r
v
e
d
t
ung
s
t
e
n
i
n
f
l
u
e
n
ce
m
o
r
e
t
h
a
n
N
i
on
t
e
n
s
il
e
p
r
op
e
r
ti
e
s
.
T
h
e
r
e
s
u
lt
s
i
nd
i
ca
t
e
d
i
n
c
r
ea
s
i
ng
i
n
t
e
n
s
il
e
s
t
r
e
ng
t
h
a
t
s
p
ec
i
m
e
n
N
o
.
X
6
w
h
i
c
h
ca
s
ti
ng
a
t
5
%
w
t
o
r
(
2
.
5
%
W
+
2
.
5
%
N
i
)
t
og
e
t
h
e
r
.
F
i
gu
r
e
3
:
s
ho
w
s
t
h
e
e
ff
ec
t
o
f
d
i
ff
e
r
e
n
t
c
on
t
e
n
t
(
W
t
%
)
w
it
h
T
e
n
s
il
e
S
t
r
e
ng
t
h
.
3.2.
F
l
e
x
t
u
r
a
l
S
t
re
n
g
t
h
I
t
i
s
d
e
t
e
r
m
i
n
e
o
f
m
a
t
e
r
i
a
l
a
s
h
i
gh
e
s
t
s
t
r
e
ss
j
u
s
t
b
e
f
o
r
e
it
y
i
e
l
d
t
e
s
t
s
w
e
r
e
i
m
p
l
e
m
e
n
t
e
d
by
u
s
i
ng
3
po
i
n
t
b
e
nd
i
ng
(
A
S
T
M
D
790
)
.
T
h
e
f
l
e
xu
r
a
l
s
t
r
e
ng
t
h
a
t
s
p
ec
i
m
e
n
N
o
.
X
6
i
s
m
o
r
e
i
m
p
r
ov
e
o
f
f
l
e
xu
r
a
l
p
r
op
e
r
ti
e
s
t
h
a
n
o
t
h
e
r
s
s
p
ec
i
m
e
n
s
T
h
e
c
on
t
e
n
t
o
f
s
p
ec
i
m
e
n
N
o
.
X
6
t
o
t
a
ll
y
5
%
w
t
o
f
t
h
e
m
.
A
s
s
ho
w
n
i
n
f
i
gu
r
e
(
4
)
.
F
r
o
m
o
t
h
e
r
s
p
ec
i
m
e
n
s
ob
s
e
r
v
e
d
t
ung
s
t
e
n
i
s
m
o
r
e
e
ff
ec
t
t
h
a
n
N
i
a
nd
l
ea
d
t
o
i
n
c
r
ea
s
e
f
l
e
xu
r
a
l
p
r
op
e
r
ti
e
s
.
35
30
25
20
15
10
5
0
X1 X2 X3 X4 X5 X6 X7
r
a
t
e
o
f
F
ill
e
r
C
on
t
e
n
t
(
w
t
%
)
T
e
n
s
il
e
S
t
r
e
ng
t
h
(
M
P
a
)
J
ou
r
o
f
A
dv
R
e
s
ea
r
c
h
i
n
D
yn
a
m
i
ca
l
&
C
on
t
r
o
l
S
y
s
t
e
m
s
,
V
o
l
.
10
,
02
-
S
p
ec
i
a
l
I
ss
u
e
,
2018
F
i
gu
r
e
4
:
s
ho
w
t
h
e
e
ff
ec
t
o
f
d
i
ff
e
r
e
n
t
c
on
t
e
n
t
(
W
t
%
)
w
it
h
F
l
e
xu
r
a
l
S
t
r
e
ng
t
h
3.3.
I
m
p
a
c
t
S
t
re
n
g
t
h
T
h
i
s
t
e
s
t
i
nd
i
ca
t
e
s
o
f
m
a
t
e
r
i
a
l
’
s
t
oughn
e
ss
a
nd
it
s
r
e
f
l
ec
t
t
h
e
a
b
ilit
y
t
o
a
b
s
o
r
b
e
n
e
r
gy
du
r
i
ng
t
h
e
p
l
a
s
ti
c
d
e
f
o
r
m
a
ti
on
h
a
pp
e
n
i
ng
i
n
m
a
t
e
r
i
a
l
s
.
F
i
gu
r
e
(
5
)
s
ho
w
s
ho
w
t
h
e
N
i
a
v
a
il
a
b
l
e
l
ea
d
t
o
i
n
c
r
ea
s
e
d
t
h
e
i
m
p
ac
t
s
t
r
e
ng
t
h
c
o
m
p
a
r
a
ti
v
e
w
it
h
t
ung
s
t
e
n
a
v
a
il
a
b
l
e
i
n
o
t
h
e
r
s
p
ec
i
m
e
n
t
h
e
r
e
f
o
r
t
h
e
e
ff
ec
t
o
f
f
ill
e
r
s
5
%
upon
i
m
p
ac
t
s
t
r
e
ng
t
h
i
s
c
l
ea
r
l
y
a
t
s
p
ec
i
m
e
n
N
o
.
X
6
a
g
a
i
n
ca
u
s
e
d
i
m
p
r
ov
e
i
n
i
m
p
ac
t
p
r
op
e
r
t
y
o
f
e
poxy
.
F
i
gu
r
e
5
:
s
ho
w
s
t
h
e
e
ff
ec
t
o
f
d
i
ff
e
r
e
n
t
c
on
t
e
n
t
(
W
t
%
)
w
it
h
I
m
p
ac
t
S
t
r
e
ng
t
h
.
3.4.
Hardness Property
I
t
i
s
r
e
f
l
ec
ti
ng
t
o
r
e
s
i
s
t
a
n
ce
o
f
m
a
t
e
r
i
a
l
a
g
a
i
n
s
t
o
f
a
b
r
a
s
i
on
,
p
e
n
e
t
r
a
ti
on
a
nd
i
nd
e
n
t
a
ti
on
.
T
h
e
t
e
s
t
i
m
p
l
e
m
e
n
t
s
und
e
r
p
r
e
ss
u
r
e
a
nd
w
a
s
ca
rr
i
e
d
ou
t
by
A
S
T
M
D
2240
.
F
r
o
m
t
h
e
c
o
m
po
s
iti
on
s
p
ec
i
m
e
n
s
obv
i
ou
s
c
onv
e
r
g
e
n
ce
i
n
r
e
s
u
lt
s
bu
t
,
t
ung
s
t
e
n
g
a
v
e
a
littl
e
i
n
c
r
ea
s
i
ng
i
n
h
a
r
dn
e
ss
c
o
m
p
a
r
a
ti
v
e
w
it
h
n
i
c
k
e
l
a
nd
t
h
e
b
e
s
t
r
e
s
u
lt
w
a
s
i
n
s
p
ec
i
m
e
n
N
o
.
X
6
A
s
shown in figure (6).
2293
*
C
o
rr
e
s
pond
i
ng
A
u
t
ho
r
:
Sa
l
w
a
A
.
A
b
e
d
,
E
m
a
il
i
d
:
s
a
l
w
a77ha
@
g
m
a
il
.
c
o
m
,
A
r
ti
c
l
e
H
i
s
t
o
r
y
:
R
ece
i
v
e
d
:
Oct
20
,
2018
,
,
A
cce
p
t
e
d
:
Nov
20
,
2018
C
on
t
e
n
t
o
f
F
ill
e
r
(
W
t
%
)
X7
X6
X5
X4
X3
X2
X1
16
14
12
10
8
6
4
2
0
I
m
p
ac
t
o
f
S
t
r
e
ng
t
h
(
kJ
/
mm
2
)
F
i
gu
r
e
6
:
s
ho
w
s
t
h
e
e
ff
ec
t
o
f
d
i
ff
e
r
e
n
t
c
on
t
e
n
t
(
W
t
%
)
w
it
h
H
a
r
dn
e
ss
.
4.
R
e
s
u
l
t
s
A
nd
D
i
s
c
u
ss
i
o
n
F
o
r
a
n
a
l
y
s
i
s
o
f
t
h
e
e
xp
e
r
i
m
e
n
t
a
l
r
e
s
u
lt
s
c
l
ea
r
l
y
a
pp
ea
r
i
m
p
r
ov
e
m
e
n
t
i
n
m
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
o
f
e
poxy
(
S
i
k
a
du
r
R
-
52
)
a
nd
t
h
e
e
xp
l
a
n
a
ti
on
a
s
f
o
ll
o
w
i
ng
:
4.1.
T
e
n
s
il
e
S
t
r
e
ng
t
h
w
a
s
h
i
gh
i
n
s
p
ec
i
m
e
n
s
N
o
.
(
X
4
)
a
nd
(
X
5
)
w
it
h
(
5
%
,
2
%
)
w
t
.
o
f
W
r
e
s
p
ec
ti
v
e
l
y
c
o
m
p
a
r
e
d
w
it
h
s
p
ec
i
m
e
n
s
N
o
.
(
X
2
)
a
nd
(
X
3
)
w
it
h
(
5
%
,
2
%
)
w
t
.
o
f
N
i
r
e
s
p
ec
ti
v
e
l
y
.
t
h
e
pu
r
e
t
ung
s
t
e
n
w
a
s
t
h
e
m
a
i
n
r
ea
s
on
w
h
i
c
h
ca
u
s
e
d
i
n
c
r
ea
s
i
ng
i
n
t
e
n
s
il
e
s
t
r
e
ng
t
h
b
eca
u
s
e
t
ung
s
t
e
n
i
s
du
c
til
e
m
a
t
e
r
i
a
l
ca
u
s
e
d
a
c
ov
a
l
e
n
t
bond
.
A
l
s
o
t
h
e
s
p
ec
i
m
e
n
w
it
h
N
o
.
X
6
i
nd
i
ca
t
e
d
good
r
e
s
u
lt
c
o
m
p
a
r
e
w
it
h
o
t
h
e
r
s
o
f
t
h
e
s
a
m
e
r
ea
s
on
.
4.2.
H
a
r
dn
e
ss
p
r
op
e
r
t
y
h
a
d
b
ee
n
e
ff
ec
t
e
d
by
f
ill
e
r
s
.
T
h
e
e
ff
ec
t
o
f
W
a
nd
N
i
f
o
r
a
ll
s
p
ec
i
m
e
n
s
a
t
d
i
ff
e
r
e
n
t
w
e
i
gh
t
p
e
r
ce
n
t
a
g
e
h
a
d
a
pp
r
ox
i
m
a
t
e
l
y
c
onv
e
r
g
e
n
t
r
e
s
u
lt
s
.
4.3.
F
l
e
xu
r
a
l
S
t
e
ng
t
h
m
ov
e
t
o
w
a
r
d
s
i
n
c
r
ea
s
i
ng
b
e
e
ff
ec
t
e
d
fr
o
m
t
ung
s
t
e
n
f
ill
e
r
c
o
m
p
a
r
a
ti
v
e
w
it
h
n
i
c
k
e
l
.
H
i
gh
l
e
v
e
l
o
f
f
l
e
xu
r
a
l
s
t
r
e
ng
t
h
w
a
s
a
t
s
p
ec
i
m
e
n
(
X
6
)
w
h
i
c
h
c
on
s
i
s
t
o
f
(
2
.
5
%
W
+
2
.
5
%
N
i
)
a
t
t
o
t
a
ll
y
5
%
bo
t
h
o
f
t
h
e
m
.
T
h
a
t
i
s
h
a
pp
e
n
e
d
b
eca
u
s
e
bo
t
h
o
f
W
a
nd
N
i
fr
o
m
du
c
til
e
m
a
t
e
r
i
a
l
.
4.4.
I
m
p
ac
t
s
t
r
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6
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ca
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h
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l
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(
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)
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r
(
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c
kn
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m
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h
i
s
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k
w
a
s
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uppo
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t
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t
h
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m
ec
h
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n
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ca
l
d
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p
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r
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m
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n
t
/
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ec
hn
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ca
l
I
n
s
tit
u
t
e
o
f
B
a
qub
a
a
nd
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h
e
a
u
t
ho
r
s
w
ou
l
d
li
k
e
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o
ac
kno
w
l
e
dg
e
t
h
e
m
ec
h
a
n
i
ca
l
l
a
bo
r
a
t
o
r
y
s
t
a
ff
.
R
e
f
ere
n
ce
s
[1]
W
s
K
h
a
r
a
t
a
nd
J
S
S
i
dhu
(
2016
)
,
“
D
e
v
e
l
op
m
e
n
t
o
f
poxy
b
a
s
e
d
c
o
m
po
s
it
e
s
f
ill
e
d
w
it
h
bo
r
on
C
a
r
b
i
d
e
(
B
4
C
)
,
T
ung
s
t
e
n
D
i
s
u
l
ph
i
d
e
(
W
S
2
)
a
nd
E
v
a
l
u
a
ti
on
o
f
it
s
M
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
”
.
I
n
t
e
r
n
a
ti
on
a
l
J
ou
r
n
a
l
o
f
M
ec
h
a
n
i
ca
l
E
ng
i
n
ee
r
i
ng
R
e
s
ea
r
c
h
,
V
o
l
u
m
e
6
,
N
u
-
b
e
r
1
,
PP
19
-
30
.
[2]
M
r
.
A
n
il
S
.
P
o
l
,
e
t
a
l
.
“
M
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
o
f
T
i
O
2
a
nd
W
C
R
e
i
n
f
o
r
ce
d
E
poxy
R
e
s
i
n
C
o
m
po
s
it
e
s
”
I
J
S
R
D
,
V
o
l
u
m
e
4
,
I
SS
U
06
,
PP
162
-
164
,
2016
.
[3]
T
.
J
.
V
og
l
e
r
e
t
a
l
.,
“
D
yn
a
m
i
c
b
e
h
a
v
i
o
r
o
f
t
ung
s
t
e
n
ca
r
b
i
e
d
a
nd
a
l
u
m
i
n
a
f
ill
e
d
e
poxy
c
o
m
po
s
it
e
s
”
J
ou
r
n
a
l
o
f
A
pp
li
e
d
P
hy
s
i
c
s
107
,
043520
(
2010
)
.
[4]
S
ub
it
a
B
h
a
g
a
t
e
t
a
l
.,
“
E
ff
ec
t
o
f
G
r
a
ph
it
e
f
ill
e
r
on
m
ec
h
a
n
i
ca
l
b
e
h
a
v
i
o
r
o
f
e
poxy
c
o
m
po
s
it
e
s
”
I
n
t
e
r
n
a
ti
on
a
l
J
o
r
n
a
l
o
f
E
m
e
r
g
i
ng
T
ec
hno
l
ogy
a
nd
A
dv
a
n
ce
d
E
ng
i
n
ee
r
i
ng
,
vo
l
.
3
,
I
ss
u
e
2
,
2013
.
[5]
R
i
ca
r
do
B
a
p
ti
s
t
a
e
t
a
l
.,
“
A
n
e
xp
e
r
i
m
e
n
t
a
l
s
t
udy
on
m
ec
h
a
n
i
ca
l
p
r
op
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r
ti
e
s
o
f
e
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-
m
a
t
r
i
x
c
o
m
po
s
it
e
s
c
on
t
a
i
n
i
ng
g
r
a
ph
it
e
f
ill
e
r
”
P
r
o
ce
d
i
a
S
t
r
u
c
t
u
r
a
l
I
n
t
e
g
r
a
t
y
1
(
2016
)
074
-
081
.
81
80
79
78
77
76
75
74
X1 X2 X3 X4 X5 X6 X7
C
on
t
e
n
t
o
f
F
ill
e
r
(
w
t
%
)
Hardness
J
ou
r
o
f
A
dv
R
e
s
ea
r
c
h
i
n
D
yn
a
m
i
ca
l
&
C
on
t
r
o
l
S
y
s
t
e
m
s
,
V
o
l
.
10
,
02
-
S
p
ec
i
a
l
I
ss
u
e
,
2018
[6]
B
a
s
a
pp
a
H
u
l
ug
a
pp
a
e
t
a
l
.,
“
E
ff
ec
t
o
f
f
ill
e
r
s
on
m
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
d
a
nd
fr
ac
t
u
r
e
t
oughn
e
ss
o
f
g
l
a
ss
f
a
b
r
i
c
r
e
i
n
f
o
r
ce
d
e
poxy
c
o
m
po
s
it
e
s
”
J
ou
r
n
a
l
o
f
m
i
n
e
r
a
l
s
a
nd
m
a
t
e
r
i
a
l
s
c
h
a
r
ac
t
e
r
i
za
ti
on
a
nd
engineering,2016,vol.4,pp.(1-14).
[7]
V
.
K
.
S
r
i
v
a
s
t
a
v
a
,
A
n
s
u
l
V
e
r
m
a
,
“
M
ec
h
a
n
i
ca
l
b
e
h
a
v
i
o
r
o
f
c
opp
e
r
a
nd
a
l
u
m
i
n
i
u
m
p
a
r
ti
c
l
e
s
r
e
i
n
f
o
r
ce
d
e
poxy
r
e
s
i
n
c
o
m
po
s
it
e
s
”
A
m
e
r
i
ca
n
J
o
r
n
a
l
o
f
M
a
t
e
r
i
a
l
s
S
c
i
e
n
ce
2015
,
vo
l
.
5
,
pp
.
(
84
-
89
)
.
[8]
V
i
ny
K
u
m
a
r
P
a
t
e
l
e
t
a
l
.,
“
I
n
f
l
u
e
n
ce
o
f
C
a
C
O
3
,
A
l
2
O
3
a
nd
T
i
O
2
M
i
c
r
o
f
ill
e
r
s
on
phy
s
i
c
o
-
m
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
o
f
L
u
ff
a
c
y
li
nd
r
i
ca
l
po
l
y
e
s
t
e
r
c
o
m
po
s
it
e
s
”
E
ng
i
n
ee
r
i
ng
S
c
i
e
n
ce
a
nd
T
ec
hno
l
ogy
,
a
n
I
n
t
e
r
n
a
ti
on
a
l
J
ou
r
n
a
l
vo
l
.
19
(2016) ,pp.676-683.
[9]
H
a
lil
B
.
K
a
yb
a
l
e
t
a
l
.,
“
E
ff
ec
t
o
f
a
l
u
m
i
n
a
n
a
nop
a
r
ti
c
l
e
s
on
dyn
a
m
i
c
i
m
p
ac
t
r
e
s
pon
s
e
s
o
f
ca
r
bon
f
i
b
e
r
r
e
i
n
f
o
r
ce
d
e
poxy
m
a
t
r
i
x
n
a
no
c
o
m
po
s
it
e
s
”
E
ng
i
n
ee
r
i
ng
S
c
i
e
n
ce
a
nd
T
ec
hno
l
ogy
,
a
n
I
n
t
e
r
n
a
ti
on
a
l
J
ou
r
n
a
l
vo
l
.
21
(
2018
)
,399-407.
[10]
V
ij
a
y
BR
,
S
r
i
k
a
n
t
a
pp
a
A
S
,
“
M
ec
h
a
n
i
ca
l
C
h
a
r
ac
t
e
r
i
za
ti
on
o
f
C
a
r
bon
F
i
b
e
r
R
e
i
n
f
o
r
ce
d
E
poxy
C
o
m
po
s
it
e
w
it
h
&
w
it
hou
t
M
O
S
2
F
ill
e
r
”
I
J
E
R
T
,
V
o
l
.
5
,
PP
613
-
616
,
2016
.
[11]
X
i
ny
i
ng
L
V
e
t
a
l
.
“
M
ec
h
a
n
i
ca
l
P
r
op
e
r
t
y
o
f
N
a
no
-
P
a
r
ti
c
l
e
s
R
e
i
n
f
o
r
ce
d
E
poxy
R
e
s
i
n
C
o
m
po
s
it
e
M
a
t
e
r
i
a
l
s
”
A
dv
a
n
ce
d
M
a
t
e
r
i
a
l
s
R
e
s
ea
r
c
h
V
o
l
s
.
181
-
182
(
2011
)
PP
.
99
-
102
.
[12]
S
a
n
t
o
s
h
S
.
D
e
v
t
a
l
e
e
t
a
l
.
“
S
t
udy
o
f
M
ec
h
a
n
i
ca
l
P
r
op
e
r
ti
e
s
o
f
E
poxy
C
o
m
po
s
it
e
s
F
ill
e
d
w
it
h
F
ill
e
r
H
B
N
”
J
ET
I
R
(I
SS
N
-
2349
-
5162
)
(
2015
)
,
V
o
l
.
2
,
I
ss
u
e
8
.
[13]
J
S
S
i
dhu
e
t
a
l
.
“
D
e
v
e
l
op
m
e
n
t
o
f
e
poxy
c
o
m
po
s
it
e
F
ill
e
d
w
it
h
M
i
c
r
o
T
ung
s
t
e
n
D
i
s
u
l
ph
i
d
e
P
a
r
ti
c
l
e
s
&
it
s
M
ec
h
a
n
i
ca
l
P
r
op
e
r
ti
e
s
”
A
dv
a
n
ce
d
M
a
t
e
r
i
a
l
R
e
s
ea
r
c
h
(
2014
)
,
V
o
l
.
875
,
PP
.
288
-
294
.
[14]
H
a
m
i
d
M
.
M
a
h
a
n
e
t
a
l
.
“
E
ff
ec
t
o
f
S
ili
ca
P
a
r
ti
c
l
e
s
on
t
h
e
E
nh
a
n
ce
m
e
n
t
o
f
M
ec
h
a
n
i
ca
l
P
r
op
e
r
ti
e
s
a
nd
T
h
e
r
m
a
l
C
ondu
c
ti
v
it
y
o
f
t
h
e
E
poxy
C
o
m
po
s
it
e
s
”
J
ou
r
n
a
l
o
f
A
dv
a
n
ce
R
e
s
ea
r
c
h
i
n
D
yn
a
m
i
ca
l
&
C
on
t
r
o
l
S
y
s
t
e
m
s
,
V
o
l
.
10
,
06
-
s
p
ec
i
a
l
I
ss
u
e
,
2018
.
[15]
S
.
R
a
j
e
s
h
A
e
t
a
l
.,
“
A
n
a
l
y
s
i
s
o
f
M
ec
h
a
n
i
ca
l
B
e
h
a
v
i
o
r
o
f
G
l
a
ss
F
i
b
e
r
/
A
l
2
O
3
-
S
i
C
R
e
i
n
f
o
r
ce
d
P
o
l
y
m
e
r
C
o
m
po
s
it
e
s
”
2014
,
P
r
o
ce
d
i
a
E
ng
i
n
ee
r
i
ng
,
pp
.
598
-
606
.
[16]
M
a
no
j
S
i
ng
l
a
e
t
a
l
.
“
M
ec
h
a
n
i
ca
l
P
r
op
e
r
ti
e
s
o
f
E
poxy
R
e
s
i
n
-
F
l
y
a
s
h
C
o
m
po
s
it
e
s
”
J
ou
r
n
a
l
o
f
M
i
n
e
r
a
l
s
a
nd
M
e
t
e
r
i
a
l
s
C
h
a
r
ac
t
e
r
i
za
ti
on
a
nd
E
ng
i
n
ee
r
i
ng
(
2010
)
,
V
o
l
.
9
,
N
o
.
3
,
pp
.
199
-
210
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[17]
H
.
Z
h
a
o
,
R
.
K
.
L
i
,
E
ff
ec
t
o
f
w
a
t
e
r
a
b
s
o
r
p
ti
on
on
t
h
e
m
ec
h
a
n
i
ca
l
a
nd
d
i
e
l
ec
t
r
i
c
p
r
op
e
r
ti
e
s
o
f
n
a
no
-
a
l
u
m
i
n
a
f
ill
e
d
e
poxy
n
a
no
c
o
m
po
s
it
e
s
,
C
o
m
po
s
.
A
:
A
pp
l
.
S
c
i
.
M
a
nu
f
.
39
(
4
)
(
2008
)
602–611
.
[18]
P
.
K
a
r
d
a
r
,
M
.
E
b
r
a
h
i
m
i
,
S
.
B
a
s
t
a
n
i
,
S
t
udy
t
h
e
e
ff
ec
t
o
f
n
a
no
-
a
l
u
m
i
n
a
p
a
r
ti
c
l
e
s
on
phy
s
i
ca
l
–
m
ec
h
a
n
i
ca
l
p
r
op
e
r
ti
e
s
o
f
UV
c
u
r
e
d
e
poxy
ac
r
y
l
a
t
e
v
i
a
n
a
no
i
nd
e
n
t
a
ti
on
,
P
r
og
.
O
r
g
a
n
.
C
o
a
t
.
62
(
3
)
(
2008
)
321–325
.
[19]
W
.
N
a
ou
s
,
X
.
Y
.
Y
u
,
Q
.
X
.
Z
h
a
ng
,
K
.
N
a
it
o
,
Y
.
K
a
g
a
w
a
,
M
o
r
pho
l
ogy
,
t
e
n
s
il
e
p
r
op
e
r
ti
e
s
,
a
nd
fr
ac
t
u
r
e
t
oughn
e
ss
o
f
e
poxy
/
A
l
2
O
3
n
a
no
c
o
m
po
s
it
e
s
,
J
.
P
o
l
y
m
.
S
c
i
.
B
:
P
o
l
y
m
.
P
hy
s
.
44
(
10
)
(
2006
)
1466–
1473
.
[20]
K
.
D
a
ss
,
S
.
C
h
a
uh
a
n
,
B
.
G
a
u
r
,
S
t
udy
on
t
h
e
e
ff
ec
t
s
o
f
n
a
nop
a
r
ti
c
u
l
a
t
e
s
o
f
S
i
C
,
A
l
2
O
3
,
a
nd
Z
n
O
on
t
h
e
m
ec
h
a
n
i
ca
l
a
nd
t
r
i
bo
l
og
i
ca
l
p
e
rf
o
r
m
a
n
ce
o
f
e
poxy
-
b
a
s
e
d
n
a
no
c
o
m
po
s
it
e
s
,
P
a
r
ti
c
u
l
a
t
e
S
c
i
.
T
ec
hno
l
.
35
(
5
)
(
2017
)
589–
[21]
L
.
M
.
M
c
G
r
a
t
h
,
R
.
S
.
P
a
r
n
a
s
,
S
.
H
.
K
i
ng
,
J
.
L
.
S
c
h
r
o
e
d
e
r
,
D
.
A
.
F
i
s
c
h
e
r
,
J
.
L
.
L
e
nh
a
r
t
,
I
nv
e
s
ti
g
a
ti
on
o
f
t
h
e
t
h
e
r
m
a
l
,
m
ec
h
a
n
i
ca
l
,
a
nd
fr
ac
t
u
r
e
p
r
op
e
r
ti
e
s
o
f
a
l
u
m
i
n
a
–
e
poxy
c
o
m
po
s
it
e
s
,
P
o
l
y
m
e
r
49
(
4
)
(
2008
)
999–1014
.
[22]
S
.
L
i
m
,
K
.
Z
e
ng
,
C
.
H
e
,
M
o
r
pho
l
ogy
,
t
e
n
s
il
e
a
nd
fr
ac
t
u
r
e
c
h
a
r
ac
t
e
r
i
s
ti
c
s
o
f
e
poxy
-
a
l
u
m
i
n
a
n
a
no
c
o
m
po
s
it
e
s
,
M
a
t
e
r
.
S
c
i
.
E
ng
.
A
527
(
21–22
)
(
2010
)
5670–5676
.
[23]
S
.
D
e
ng
,
L
.
Y
e
,
a
nd
K
.
F
r
i
e
d
r
i
c
h
,
“
F
r
ac
t
u
r
e
b
e
h
a
v
i
o
r
s
o
f
e
poxy
n
a
no
c
o
m
po
s
it
e
s
w
it
h
N
a
no
-
s
ili
ca
a
t
l
o
w
a
nd
e
l
e
v
a
t
e
d
t
e
m
p
e
r
a
t
u
r
e
s
,
”
J
ou
r
n
a
l
o
f
M
a
t
e
r
i
a
l
s
S
c
i
e
n
ce
,
vo
l
.
42
,
no
.
8
,
pp
.
2766–2774
,
2007
.
2295
*
C
o
rr
e
s
pond
i
ng
A
u
t
ho
r
:
Sa
l
w
a
A
.
A
b
e
d
,
E
m
a
il
i
d
:
s
a
l
w
a77ha
@
g
m
a
il
.
c
o
m
,
A
r
ti
c
l
e
H
i
s
t
o
r
y
:
R
ece
i
v
e
d
:
Oct
20
,
2018
,
,
A
cce
p
t
e
d
:
Nov
20
,
2018























