Bulletin of Materials Science (B MATER SCI)

Publisher: Indian Academy of Sciences; Materials Research Society of India; Indian National Science Academy, Indian Academy of Sciences

Journal description

The Bulletin of Materials Science is a bi-monthly journal being published by the Indian Academy of Sciences in collaboration with the Materials Research Society of India and the Indian National Science Academy. The journal publishes original research articles, review articles and rapid communications in all areas of materials science. The journal also publishes from time to time important Conference Symposia/ Proceedings which are of interest to materials scientists. It has an International Advisory Editorial Board and an Editorial Committee. The Bulletin accords high importance to the quality of articles published and to keep at a minimum the processing time of papers submitted for publication.

Current impact factor: 1.02

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 1.017
2013 Impact Factor 0.87
2012 Impact Factor 0.584
2011 Impact Factor 0.88
2010 Impact Factor 0.944
2009 Impact Factor 0.783
2008 Impact Factor 0.858
2007 Impact Factor 0.603
2006 Impact Factor 0.522
2005 Impact Factor 0.777
2004 Impact Factor 0.554
2003 Impact Factor 0.529
2002 Impact Factor 0.34
2001 Impact Factor 0.465
2000 Impact Factor 0.393
1999 Impact Factor 0.319
1998 Impact Factor 0.287
1997 Impact Factor 0.296
1996 Impact Factor 0.278
1995 Impact Factor 0.233
1994 Impact Factor 0.146
1993 Impact Factor 0.225
1992 Impact Factor 0.244

Impact factor over time

Impact factor
Year

Additional details

5-year impact 1.28
Cited half-life 7.70
Immediacy index 0.07
Eigenfactor 0.00
Article influence 0.27
Website Bulletin of Materials Science website
Other titles Bulletin of materials science (Online)
ISSN 0250-4707
OCLC 51172816
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Indian Academy of Sciences

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Conditions
    • Publisher's version/PDF must be used
    • On author's personal website and/or institutional repository
    • All titles are open access journals
  • Classification
    green

Publications in this journal

  • S S PANWAR · T UMASANKAR PATRO · K BALASUBRAMANIAN · B VENKATARAMAN
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    ABSTRACT: Thermal barrier coatings (TBCs) of yttria-stabilized zirconia (YSZ) of different thicknesses with an intermediate bond coat were deposited on C-103 Nb alloy using the air plasma spraying technique. The coatings were subjected to rapid infra-red (IR) heating (∼25°C s−1) up to ∼1250°C and exposed up to 100 s at this temperature with heat flux varying from 55 to 61 W cm−2. The TBCs were found to be stable and intact after the heat treatment. In contrast, at the same conditions, the uncoated C-103 alloy specimen showed extensive oxidation followed by weight loss due to spallation. A maximum temperature drop of ∼200°C was observed on the opposite side of the coated alloy with 600 μm YSZ coat; as against negligible temperature drop in case of bare alloy specimen. The temperature drop was found to increase with the coating thickness of YSZ. The coatings before and after IR heating were investigated by scanning electron microscopy, X-ray diffraction, electron probe microanalysis, microhardness and residual stress measurements in order to understand the effect of thermal shock on the properties of the TBC. On account of these high-temperature properties, YSZ coating along with the bond coat is expected to find potential thermal barrier coating system on niobium alloys for supersonic vehicles.
    No preview · Article · Feb 2016 · Bulletin of Materials Science
  • A LEKHAL · F Z BENKHELIFA · S MÉÇABIH · B ABBAR · B BOUHAFS

    No preview · Article · Feb 2016 · Bulletin of Materials Science
  • SAURABH KUMAR PANDEY · SHAIBAL MUKHERJEE
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    ABSTRACT: The structural, morphological, elemental and electrical properties of MgZnO thin films, grown on p-Si (001) substrates by dual-ion beam sputtering deposition (DIBSD) system at different substrate temperatures were thoroughly investigated. X-ray diffraction (XRD) pattern of MgZnO film exhibited crystalline hexagonal wurtzite structure with the preferred (002) crystal orientation. The full-width at half-maximum of the (002) plane was the narrowest with a value of 0.226° from MgZnO film grown at 400°C. X-ray photoelectron spectroscopy analysis confirmed the substitution of Zn2+ by Mg2+ in MgZnO thin films and the absence of MgO phase. Correlation between calculated crystallite size, as evaluated from XRD measurements, and room-temperature carrier mobility, as obtained from Hall measurements, was established. Current–voltage characteristics of MgZnO thin films were carried out under the influence of dark and light illumination conditions and corresponding values of photosensitivity were calculated. MgZnO film grown at 100°C exhibited the highest photosensitivity of 1.62. Compared with one of the best-reported values of photosensitivity factor from ZnO-material-based films available in the literature, briefly, ∼3.085-fold improved photosensitivity factor at the same bias voltage (2 V) was obtained.
    No preview · Article · Feb 2016 · Bulletin of Materials Science
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    ABSTRACT: The objective of the present study was basic understanding of the formation of thin film morphology by spin coating using reorganized polyethylene terephthalate (r-PET) and multiwalled carbon nanotubes (MWCNTs) as fillers in PET. A study of the correlation between physical properties of the PET films and its surface morphology was carried out using atomic force microscopy-based power spectral density (PSD) analysis. No significant work of surface analysis, using PSD of thin films of PET has been reported till date. Dilute solution of PET, PET with 3 wt% (r-PET) and PET with 3 wt% (2 wt% r-PET + 1 wt% MWCNT) filler were prepared using trifluoroacetic acid (TFA) as a solvent and thin films were fabricated on glass substrate by the optimized spin coating technique. Preparation of r-PET and r-PET + MWCNT fillers was obtained by the precipitation method using TFA as a solvent and acetone as an antisolvent. The samples before spin coating were extruded and for comparison, a film of non-extruded PET was also prepared. Structural studies by Fourier transform infrared and X-ray diffraction show higher degree of crystallinity in r-PET and decrease in chain entanglements. Owing to the crystallizing behaviour of r-PET, it allows better dispersion of MWCNT in the polymer matrix as compared with PET. The samples with fillers of MWCNT show more compact and unique mesh-like globular structure, indicating application for electromagnetic shielding foams and fibres.
    No preview · Article · Feb 2016 · Bulletin of Materials Science
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    ABSTRACT: A catalyst-free innovative synthesis, by combined X-ray chemical vapour deposition and low-temperature thermal treatments, which has not been applied since so far to the growth of germanium nanowires (Ge-NWs), produced high yields of the nanoproducts with the GeH4 reactant gas. Nanowires were grown on both surfaces of a conventional deposition quartz substrate. They were featured with high purity and very large aspect ratios (ranging from 100 to 500). Products were characterized by scanning electron microscopy with energy-dispersive atomic X-ray fluorescence and transmission electron microscopies, X-ray powder diffraction diffractometry, thermogravimetric analysis with differential scanning calorimetry, vibrational infrared and Raman and ultraviolet–visible–near infrared spectroscopies. A quantitative nanowire bundles formation was observed in the lower surface of the quartz substrate positioned over a heating support, whilst spots of nanoflowers constituted by Ge-NWs emerged from a bulk amorphous germanium film matter, deposited on the upper surface of the substrate. The nanoproducts were characterized by crystalline core morphology, providing semiconductive features and optical band gap of about 0.67 eV. The possible interpretative base-growth mechanisms of the nanowires, stimulated by the concomitant application of radiant and thermal conditions with no specific added metal catalyst, are hereafter investigated and presented.
    No preview · Article · Feb 2016 · Bulletin of Materials Science
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    ABSTRACT: Hexaferrite Sr1−x La x Fe12−x (Cu0.5Co0.5) x O19 (0 ≤ x ≤ 0.50) magnetic powders and magnets were synthesized by the solid-state reaction method. The phase compositions of magnetic powders were investigated by X-ray diffraction. The single magnetoplumbite phase is obtained in magnetic powders with x from 0 to 0.40. At x = 0.50, CoFe2O4, and α-Fe2O3 were observed. The morphology of the materials was characterized by a field-emission scanning electron microscopy. The particles were hexagonal platelets. Magnetic properties of the materials were measured by a permanent magnetic measure equipment. The remanence of the materials increases with x from 0 to 0.50. However, the intrinsic coercivity and magnetic induction coercivity of the materials increase with x from 0 to 0.15, and decreases when x varies from 0.15 to 0.50. Accordingly, the maximum energy product of the materials first increases with x from 0 to 0.35, and then decreases when x exceeds 0.35.
    No preview · Article · Feb 2016 · Bulletin of Materials Science
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    ABSTRACT: Ti orthopaedic implants are commonly coated with hydroxyapatite (HA) to achieve increased biocompatibility and osseointegration with natural bone. In this work the dip-coating technique was used to apply HA films on Ti foil. A gel was used as the support vehicle for commercial HA particles. The experimental parameters like surface roughness of the metallic substrate and immersion time were studied. All coated substrates were heat treated and sintered under vacuum atmosphere. The produced coatings were characterized by field-emission gun scanning electron microscopy coupled with energy-dispersive spectroscopy, X-ray diffraction, Raman spectroscopy, microhardness, scratch test and profilometry. Additionally, the apatite-forming ability of the produced material was tested by exposure to a simulated body fluid. Higher substrate surface roughness and longer immersion time produce thicker, denser films, with higher surface roughness. Lower film porosity is accompanied by higher hardness values. However, thicker coating promotes differential shrinkage and crack formation during sintering. Both coating thickness and coating roughness increase with coating time. HA films∼30–40 μm thick with 45–50% HA theoretical density produced on Ti substrates with surface roughness of R z∼1.0–1.7 μm, display an attractive combination of high hardness and resistance to spallation. Attained results are encouraging regarding the possibility of straightforward production of biocompatible and bioactive prosthetic coatings for orthopaedic applications using commercial HA.
    No preview · Article · Feb 2016 · Bulletin of Materials Science
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    ABSTRACT: A stable aqueous dispersion (5 mg ml−1) of graphene was synthesized by a simple protocol based on three-step reduction of graphene oxide (GO) dispersion synthesized using the modified version of Hummers and Offeman method. Reduction of GO was carried out using sodium borohydride, hydrazine hydrate and dimethyl hydrazine as reducing agents. The chemically synthesized graphene was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV–visible absorption spectroscopy, Fourier transform infrared (FTIR) and Raman spectroscopy, thermogravimetric analysis (TGA), optical microscopy. The stability of aqueous dispersions of graphene was confirmed through zeta potential measurements and the negative zeta potentials of 55–60 mV were obtained indicating the high stability of aqueous graphene dispersions.
    No preview · Article · Feb 2016 · Bulletin of Materials Science
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    ABSTRACT: Poly(vinyl alcohol) (PVA) has wide applications in film industries owing to the hydrophilicity and biocompatibility. In recent times the application of PVA is extended to drug-delivery field. Unfortunately, the thermal stability of PVA is very poor. In order to increase the thermal stability, the drugs were chemically conjugated with PVA. In the present investigation rifampin (Rif.) a bactericidal antibiotic drug was chemically conjugated with PVA backbone. The resultant Rif.-conjugated PVA was characterized by Fourier transform infrared spectroscopy, UV–visible spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, differential scanning calorimetry, and thermogravimetric analysis (TGA). Finally, the Rif.-conjugated PVA was tested for the drug-release activity. The scanning electron microscope morphology declared the presence of microvoids on the surface of PVA and the same was effectively used for the drug-loading purpose. Mechanical properties of PVA before and after the structural modification process were also tested. The aromatic carbon signal around 120–150 ppm in the 13C NMR confirmed the chemical grafting of Rif. on to the PVA backbone. The TGA confirmed the four-step degradation process for the structurally modified PVA.
    No preview · Article · Feb 2016 · Bulletin of Materials Science
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    ABSTRACT: Nowadays, natural fibres are used as a reinforcing material in polymer composites, owing to severe environmental concerns. Among many different types of natural resources, kenaf plants have been extensively exploited over the past few years. In this experimental study, partially eco-friendly hybrid composites were fabricated by using kenaf and glass fibres with two different fibre orientations of 0° and 90°. The mechanical properties such as tensile, flexural and impact strengths of these composites have been evaluated. From the experiment, it was observed that the composites with the 0° fibre orientation can withstand the maximum tensile strength of 49.27 MPa, flexural strength of 164.35 MPa, and impact strength of 6 J. Whereas, the composites with the 90° fibre orientation hold the maximum tensile strength of 69.86 MPa, flexural strength of 162.566 MPa and impact strength of 6.66 J. The finite element analysis was carried out to analyse the elastic behaviour of the composites and to predict the mechanical properties by using NX Nastran 9.0 software. The experimental results were compared with the predicted values and a high correlation between the results was observed. The morphology of the fractured surfaces of the composites was analysed using a scanning electron microscopy analysis. The results indicated that the properties were in the increasing trend and comparable with pure synthetic fibre reinforced composites, which shows the potential for hybridization of kenaf fibre with glass fibre.
    No preview · Article · Feb 2016 · Bulletin of Materials Science
  • K DE · S DAS
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    ABSTRACT: Low-temperature transport properties are investigated in the self-doped compound, La0.9Mn0.98 Zn0.02O3. The analysis of the low-temperature resistivity is performed considering various scattering mechanisms. The parameters involved with different scattering processes such as electron–electron, Kondo, electron–phonon and electron–magnon are found to be strongly influenced by the applied magnetic field. The results suggest that interplay between electron–electron and Kondo-like scatterings lead to the localization in the temperature dependence of resistivity at low temperature.
    No preview · Article · Feb 2016 · Bulletin of Materials Science

  • No preview · Article · Jan 2016 · Bulletin of Materials Science

  • No preview · Article · Jan 2016 · Bulletin of Materials Science
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    ABSTRACT: TiO2 coating has been widely applied in orthopaedic and dental implants owing to its excellent mechanical and biological properties. However, one of the biggest complications of TiO2 coating is implant-associated infections. The aim of this work is to improve the antibacterial activity of plasma-sprayed TiO2 coatings by plasma immersion ion implantation (PIII) using zinc (Zn) ions. Results indicate that the as-sprayed TiO2 coating is mainly composed of rutile phase. Zn-PIII modification does not change the phase compositions and the surface morphologies of TiO2 coatings, while change their hydrophilicity. Zn-implanted TiO2 coatings can inhibit the growth of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli), and the ability to inhibit S. aureus is greater than that to E. coli. Zn ion release and reactive oxygen species may be attributed to improving the antibacterial activity of TiO2 coating. Therefore, Zn-PIII TiO2 coatings on titanium suggest promising candidates for orthopaedic and dental implants.
    No preview · Article · Jan 2016 · Bulletin of Materials Science
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    ABSTRACT: The ideally invisible stealth radomes are usually sandwiched constructions composed of E-glass/epoxy composite, polyvinyl chloride foam and frequency selective surfaces (FSS). Nylon 6/6 and balsa wood are well known for their low dielectric properties. In this work the electromagnetic (EM) wave transmission characteristics of the existing stealth radomes were improved by employing nylon 6/6 fibre and balsa wood, along with E-glass/epoxy composite without compromising the mechanical properties. The free space measurement technique was performed to measure the EM wave transmission characteristics in the X-band frequency range (8.2–12.4 GHz) for a specific FSS. The flexural strength of the sandwiched constructions were investigated with three-point bending test.
    No preview · Article · Jan 2016 · Bulletin of Materials Science
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    ABSTRACT: The synthesis by the sol–gel method, structural and optical properties of ZnO, Zn0.99Al0.01O (AlZ), Zn0.9V0.1O (VZ) and Zn0.89Al0.01V0.1O (AlVZ) nanoparticles was reported. The approach was slow release of water for hydrolysis by esterification reaction followed by a supercritical drying in ethyl alcohol. After thermal treatment at 500∘C in air, the obtained nanopowders were characterized by various techniques such as transmission electron microscopy, X-ray diffraction and photoluminescence (PL) spectroscopy. The structural properties showed that the ZnO nanoparticles with an average particle size of 25 nm exhibit hexagonal wurtzite structure. From the optical studies, it was found that the optical band gap was located between 2.97 and 3.17 eV. The obtained electrical properties showed the potential application of the samples in optoelectronic devices. The powder of AlVZ presented a strong luminescence band in the visible range. The PL band energy position presented a small blue shift with the increase of measurement temperature. Different possible attributions of this emission band will be discussed.
    No preview · Article · Jan 2016 · Bulletin of Materials Science
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    ABSTRACT: In this study, Zinc oxide (ZnO) nanoparticles were synthesized using aqueous extract of Lantana aculeata Linn. leaf and assessed their effects on antifungal activity against the plant fungal pathogens. Synthesized nanoparticles were confirmed by ultraviolet–visible spectroscopy, Fourier transform infrared spectrometer, energy-dispersive X-ray spectrometer, X-ray diffractometer, Field-emission scanning electron microscopy, high-resolution transmission electron microscopy. The antifungal activity of ZnO nanoparticles were determined using the well diffusion method. All the characterization analyses revealed that nanoparticles were highly stable and crystalline in nature. L. aculeata-mediated ZnO nanoparticles were spherical in shape with an average particle size of 12 ± 3 nm. Antifungal studies concluded that the maximum zone of inhibition was observed in Aspergillus flavus (21 ± 1.0 mm) and Fusarium oxysporum (19 ± 1.0 mm) at 100 μg ml −1 concentration. These results clearly indicated the benefits of using ZnO nanoparticles synthesized using biological methods and shown to have antifungal activities and also that it can be effectively used as antifungal agent in environmental aspect of agricultural development.
    No preview · Article · Jan 2016 · Bulletin of Materials Science
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    ABSTRACT: Dimer complex PEPyr–diCd (5a) has been prepared by reacting CdCl2⋅2.5H2O with 1,1′-bis(diphenylphosphino)ethyl-6-methyl-3-(pyridin-2-yl)-1,4-dihydro-pyridazine tungsten tetracarbonyl PEPyr (4a) as bipyridine ligand. The structural properties of PEPyr–diCd complex were characterized on the basis of elemental analysis (EA), Fourier transform infrared spectra, fast atom bombardment-mass spectrometry, thermogravimetric/differential thermal analysis, and 1 H nuclear magnetic resonance spectroscopy. The crystal is orthorhombic, space group Pbca. Cd(II) metal in PEPyr–diCd organic semiconductor complex coordinated with two N of the PEPyr and three Cl − (one terminal and two bridging). The micro-structural properties of the films were studied via X-ray diffraction, and scanning electron microscopy. The as-deposited films were annealed in air for 1 h at 150, 200, and 250 ∘ C. An average transmittance ≥ 70% for PEPyr–diCd complex at higher wavelength ≥ 800 nm was observed. In UV spectrum, the transmittance increases followed by a sharp decrease at wavelength 700–750 nm within visible range. The results of the absorption coefficient were determined to find the binding energy (E B ) of PEPyr–diCd organic semiconductor complex as 0.242 and 0.47 eV, respectively. Refractive index (n) and absorption index (K) of PEPyr–diCd complex were calculated. Moreover, the dispersion parameters such as dispersion energy, oscillator energy, dielectric constant, and dissipation factor were determined. The oxidation of the imino-phosphine derivatives were examined using cyclic voltammetry in methylene chloride solvent. The cyclic voltammogram of PEPyr–diCd (5a) organic semiconductor appears to have two quasi-reversible oxidations at 543 and 441 mV. The obtained results indicate that the PEPyr–diCd organic semiconductor thin film is a good candidate in optoelectronic devices based on its band gap and dispersion parameters.
    No preview · Article · Jan 2016 · Bulletin of Materials Science
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    ABSTRACT: The electrochemical supercapacitor behaviour of bare, washed and nitric acid functionalized candle flame carbon soots were reported. Crystallinity and the morphology of the candle soots were recorded using X-ray diffraction analysis, scanning and transmission electron microscopy, respectively. The nitric acid functionalized candle soot showed an improved Brunauer–Emmett–Teller surface area of 137.93 from 87.495 m2 g−1 of washed candle soot. The presence of various functional groups in candle soots and the development of oxygen functionalities in the functionalized candle soot were examined through Fourier transform infrared spectroscopy and energy-dispersive X-ray analysis. Raman spectra showed the characteristic peaks corresponding to the D (diamond) and G (graphite) phase of carbon present in the candle soots. The electrochemical characterization was performed by cyclic voltammetry, galvanostatic charge/discharge test and impedance spectroscopy in 1 M H2SO4 electrolyte. The functionalized candle soot electrode showed an enhanced specific capacitance value of 187 F g−1 at 0.15 A g−1 discharge current density, which is much higher than that of bare and washed candle soot electrodes.
    No preview · Article · Jan 2016 · Bulletin of Materials Science