s.K. Acharya

• National Institute of Technology Rourkela

A solid-lubricated bearing utilizes a solid lubricant instead of a liquid lubricant to reduce friction between the bearing components. This bearing technology is particularly suitable for high-temperature and high-pressure applications where liquid lubrication is not practical or effective. In the development of this bearing, Tribological factors,...

In this research, short Agave lechuguilla (AL) fibers were used as reinforcement material in epoxy resin at different weight percentages (10, 20, 30, and 40 wt.%) to make a composite by hand lay-up techniques. The rate of erosion and wear behavior of the fabricated composites against the varied impingement angles (30, 40, 60, and 90°) and different...

The aim of the research work was to fabricate the short Agave lechuguilla (AL) fiber‐reinforced epoxy composite and to improve its mechanical strengths. In order to do that, a single fiber pullout test was conducted to evaluate the critical length of the AL fiber and its interfacial shear strength (IFSS) in epoxy resin. To improve the IFSS, AL fibe...

This paper aims to study the synthesis of zirconia nanoparticles within the size of 100 nm using different drying routes and various sintering temperatures, for possible use as a nano-filler in polymeric composites. The nanoparticles are synthesized by cost-effective co-precipitation method. The x-ray diffraction (XRD) analysis confirms stabilizati...

In this study, we investigated the abrasive wear behavior of carbon black (CB)/bio-char reinforced polymer composites. A pyrolysis/gasification technique was used to produce CB filler at high temperatures from orange peel particulates, a biowaste material, under controlled or oxygen-free conditions. In the abrasive wear test, the composite samples...

Abaca is a high-strength natural fiber whose tribological behavior in epoxy polymer composite is unexplored to date. This paper aims to study the mechanical and dry sliding wear behavior of abaca fiber (A) and glass fiber (G) reinforced epoxy laminate composites with various stacking sequences. Symmetrically oriented laminate composites were fabric...

Traditional method of production of carbon black is very expensive. Recent focus of researchers worldwide is to produce carbon black from agricultural waste products and from some lignocellulosic biomass that is rich in organic materials. In this present study, carbon black is prepared from a biowaste material known as wood apple shell and utilised...

In this paper, the wood apple shell/epoxy composites were fabricated by hand lay-up technique. The wood apple shell particulates vary from 5, 10, 15, and 20 wt.%. The abrasive wear tests have been carried out using a pin-on-disc wear tester. In this study, the design of experiments has been applied to evaluate the abrasive wear rate of the composit...

In the present investigation, the influence of chemical treatment on the structural, morphological, thermal, and weathering behavior Eulaliopsis Binata (EB) fiber was studied. Composites were fabricated containing both untreated and chemically treated (with acetone, alkali, and benzoyl chloride) EB fibers. The mechanical characterization of the dev...

Effects of chemical treatments with benzoyl chloride, acetone, and alkali on the physical and mechanical properties of orange peel particulate (OPP) reinforced epoxy composite materials have been studied. Hand lay-up technique was applied to manufacture the composites. The experimental results illustrate that chemical treatment with benzoyl chlorid...

Carbon black is the most promising filler material in polymer industries for fabrication of composite materials because of its unique properties and strength. In the present study, carbon black particles are developed from orange peel particulates (OPP) by pyrolysis approach at different carbonization temperatures (400oC, 600oC and 800oC). The raw...

The overall performance and service life of natural fiber-based composites are affected by different factors depending on their application areas, such as building products, automotive and as packaging materials. As building product, natural fiber polymer composites are used for outdoor applications in decking, fencing, sliding window frames and ro...

The environmental concerns and quest for a sustainable future have encouraged the utilisation of bio-waste in a productive manner. In the present investigation, characterization studies such EDS, XRD and FTIR of pistacia vera (pistachio) nut shell particulates were carried out to have a knowledge of the morphological properties. Further, an attempt...

In this article, a new metal–matrix composite was developed with fly ash (an industrial waste from petroleum industries) as reinforcement and aluminium metal (A357) as a matrix by squeeze casting technique. This study was concentrated on the processing of the composites with different weight percentage ranging from 0 to 10 wt.% in a step of 2.5 eac...

Syngonanthus nitens (SN), locally called Sikki grass, a natural fiber whose potential as a reinforcement in polymer matrix composite for tribology applications has not been explored till date. The present work aims to investigate the study of solid particle impact on erosion wear behavior of this natural fiber polymer matrix composite. The study de...

Polymer based substances such as epoxy or poly-epoxide has tremendous role in industrial applications such as surface coatings, potting, laminated circuit boards due to its versatile nature. Synthetic fibers are used in polymer composites as reinforcement to increase its mechanical and tribological properties. However, natural fibers/particulates a...

The development of lightweight materials has drawn more attention in the last decade in the field of household, construction and automobile sectors in place of conventional materials. New environmental policies are forcing researchers to design and develop new lightweight materials that are environmentally friendly. The development of bio-composite...

This paper discourses an overview of the recent advancements in functionally graded materials (FGMs) research. The paper also disseminates on the key researches that are carried out in the scientific community on the development of manufacturing and modelling of functionally graded materials. The rationale of the current work is to emphasize the se...

This paper discourses an overview of the recent advancements in functionally graded materials (FGMs) research. The paper also disseminates on the key researches that are carried out in the scientific community on the development of manufacturing and modelling of functionally graded materials. The rationale of the current work is to emphasize the se...

The present paper describes the wear behavior of biowaste (orange peel particulate) reinforced epoxy composites with different filler (0, 10, 20, and 30 wt%) loading. The wear analysis was performed according to ASTM G-99 standard by pin-on-disk apparatus at room temperature by varying the filler loading, applied load, and sliding velocities. The o...

The present paper is based on the effect of heat treatment on the wear behavior of A357/cenosphere composites. The aluminum metal matrix composites were fabricated by the squeeze casting method. Both base alloy and composites are heat treated. The hardness of the matrix alloy and composites, both in as cast and heat-treated conditions, is measured...

This study is aimed at the potential use of a new natural fiber in polymer based composites (Eulaliopsis binata fiber) as a reinforcing material whose potential for tribological applications is still an unexposed area of research. The characterization studies of the fiber has been carried out with XRD, EDS, and Scanning electron microscope (SEM). D...

Recently there has been a greater inclination towards natural fiber reinforced plastic composites because these are environmental friendly and cost effective to synthetic fiber reinforced composites. The availability of natural fiber and ease of manufacturing have tempted researchers worldwide to try locally available inexpensive fiber and to study...

In the present work, Eulaliopsis binata, a natural fiber collected from the eastern part of India is taken as a reinforcement with epoxy resin to develop a new class of polymer composite material, which has been unexplored till date for tribological applications in the composite industry. Different characterization studies of the fiber such as SEM,...

Syngonanthus nitens, locally called Sikki grass, is one of such potential natural fiber resources whose potential as a reinforcement in polymer matrix composite has not been explored till date. Natural fiber-reinforced epoxy composites are getting more importance between the research community in recent time. These types of composites are environme...

In this research work, hand lay-up technique has been used to fabricate different weight percentage of (10, 20, 30 and 40 wt%) raw and chemically treated rice husk reinforced epoxy composites. The chemical treatment of bio fiber (rice husk) was performed with alkali and benzoyl chloride. The chemical treated rice husk particulate can be used as fil...

In this article, the study of mechanical and morphological properties of orange peel and carbon black material from orange peel/ polypropylene composites was carried out taking various filler loadings (0, 10, 20, 30 and 40 wt%). The new carbon black materials were developed from bio-waste (orange peel) material using the pyrolysis method at differe...

In the present work, an attempt has been made to study the three body abrasive wear behaviour of laminate hybrid composites consisting jute fiber/glass fiber reinforced with epoxy resin. The composites samples with different stacking sequence like S1 (GJJJJJJJJG), S2 (GJGJGGJGJG) and S3 (JGJGJJGJGJ) with glass (G) and jute (J) were fabricated using...

A novel method is used to synthesize ordered porous carbon from natural bio waste. Eggshells and coconut shells powder particles were used for synthesis of bio carbon. Eggshell particles were used as template as well as activating agent for synthesis of ordered porous carbon, while coconut shells act as a precursor. The synthesized activated carbon...

In this investigation a new unexplored potential non-wood natural fiber, eulaliopsis binata (short fiber) is taken as reinforcement with epoxy as matrix material to examine the potential of the fiber as a reinforcement material. The incorporation of short eulaliopsis binata (sabai) fiber with different weight percentage (5,10,20,30,40) contributed...

Natural fibers have gained researchers’ attention as a replacement to synthetic materials for reinforcing material in polymers such as epoxy due to their advantages such as environment friendliness, biodegradability, renewability and cost effectiveness. Due to such advantages, further exploration of new natural fibers as a filler material in polyme...

The present work based on the study of the mechanical properties and solid particle erosion wear behavior of epoxy/rubber wood composite. Composites were fabricated by the hand-lay up method by incorporating various weight fraction of rubber wood particulates starting from 10 to 40 wt% (RWC1-RWC4) with an increment of 10 wt%. The erosive test was p...

The present work aims to study the moisture uptake and thickness swelling behaviour and its effect on tensile and flexural properties of Luffa cylindrica epoxy composite. Characterizations of the luffa fibre surface were carried out by energy-dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy. Composites were casted with sing...

In this work, the LM6/cenosphere composites were fabricated by the squeeze casting. The various weight percentages of cenosphere (wt. % c/s) (5, 7.5, 10, 12.5, and 15) wt. % c/s were selected for the synthesis of the LM6/composites. The characterisation of the reinforced and unreinforced composites through SEM, XRD, and EDX analysis was carried out...

Cenosphere particles are potential discontinuous dispersoids used in metal matrix composites, since they are low-cost and lowdensity reinforcement available in large quantities as a waste by-product in thermal power plants.It helps in decreasing the density of the composites and increases the mechanical as well as the tribological behavior of the c...

In the present work, epoxy/carbon black (CB) composites were made with 1, 2, 3, 4 and 5 wt. % of CB. The tensile test, flexural test, and impact test of the epoxy/CB composites and neat epoxy were performed and, their results were compared. Theresults conclude that the tensile strength, flexural strength, and impact strength of the 4 wt. % of CB co...

To cite this article: Bera et al. (2018). Study of the tribological properties of fly ash cenosphere particulate reinforced LM6 (Al-Si12) matrix alloy composites produced by stir casting method. Jurnal Tribologi 18, pp.124-135. KEYWORD ABSTRACT Fly ash cenosphere LM6 (Al-Si12) matrix alloy Abrasive wear SEM Stir casting is an economical and simples...

Characterization of bio waste fiber/particulates for the fabrication of bio composite is essential, because the performance of composite depends upon several factors, including chemical composition, physical properties, and environmental condition of fiber/particulates. In this research, a new bio waste lignocellulosic wood apple shell particles ha...

In this paper, an attempt has been made for the use of waste fly ash cenosphere for tribological wear behaviour. LM6/cenosphere composites were fabricated by stir casting method. An experimental study has been conducted on pin-on-disc wear testing machine to determine the abrasive wear behaviour of cenosphere particulate-reinforced metal matrix com...

In the present study the three-body abrasive wear behavior of particulate filled woven hybrid jute-glass (GJJG) epoxy composites have been reported. The hybrid epoxy composites were fabricated and filled with (5–20) wt. % of cenosphere filler with a step of 5wt. %.In the present investigation, angular silica sand particles of size in the range (200...

Solid particle erosion of squeeze-cast LM6 (Al-Si12)/cenosphere composites was investigated at ambient temperature. Experiments were performed with different weight percentages (5%, 7.5%, 10% and 12.5%) of composites, having four velocities (48 m/s, 70 m/s, 82 m/s and 109 m/s), at impact angle (30°, 45°, 60° and 90°) and with silica sand as abrasiv...

This experimental study was conducted to investigate the effect of NaOH concentration and treatment time on the flexural properties of Luffa cylindrica fiber-reinforced epoxy composites. Significant improvement (up to 84.92%) in the flexural properties for the treated fiber composite compared with the untreated fiber composite was observed. Both tr...

There is a growing interest in use of agro-fibers as reinforcing components for plastics because they are renewable, biodegradable and environmentally friendly. Again, the growing environmental concern has made plastics a target of criticism due to lack of degradability. So there has been a lot of interest in research committed to the design of bio...

Industrial effluents are one of the major causes of environmental pollution. Effluents discharged from dyeing industries are highly colored and of low biochemical oxygen demand (BOD) and high chemical oxygen demand (COD). This chapter reports the fabrication and characterization of waste carbon from biomass and also reinforcement of the carbon into...

Cenosphere is a ceramic-rich industrial waste produced during burning of coal in thermal power plants. This study deals with the effect of cenosphere as particulate filler on mechanical behaviour of woven jute-glass hybrid composites. The hybrid composite consists of jute and glass fiber as reinforcement and epoxy as matrix. The conventional hand l...

The flexural and tensile properties of micrometer and nanometer fly ash particle-filled jute/glass hybrid epoxy composites were studied and compared with the conventional fibers (glass) composites. The effect of nano filler (2, 4 and 6 wt.%) and micro filler (5, 10 and 15 wt.%) are also examined. The effects of micro/ nano filler addition in the pu...

In the present case, the solid particle erosion characteristics of the cenosphere-filled glass–jute (GJJG) hybrid epoxy composites have been studied experimentally. Jute with (45°−45°) and glass with (0−90°) fabric orientation have been used to fabricate the composites. Different doses of cenosphere particles (5, 10, 15, and 20 wt%) were also added...

In the present study the solid particle erosion characteristics of the cenosphere filled GJJG reinforced composites have been studied experimentally. Jute(450-450) and glass (00-900) of fabric orientation reinforced composites filled with different doses of ceramic rich cenosphere weight percentage(5%, 10%, 15% and 20%) were prepared by hand lay up...

Natural fibre-reinforced plastic (FRP) composites have gained much interest because of their environment friendliness and cost-effectiveness compared to synthetic fibre-reinforced composites. The availability of natural fibre and ease of manufacturing have tempted researchers worldwide to develop a locally available low-cost fibre and study their f...

The aim of the present work was to study the effect of fiber surface treatment on the structural, thermal and mechanical properties of luffa fiber and its composites. Fibers were treated with alkali (5% conc.), benzoyl chloride, and potassium permanganate (KMnO4) (0.05%) at room temperature. The untreated and treated fibers were characterized and m...

This work focuses on the mechanical properties and solid particle impact behaviour of Luffa cylindrica fibre (LCF)-reinforced epoxy composites. Single (SL)-, double (DL)-, and triple (TL)-layered composites were prepared using the general hand lay-up technique. The erosive wear test was carried out using an air jet erosion tester according to the A...

Abstract-In the present study the solid particle erosion characteristics of the cenosphere(industrial waste produced during burning of coal in thermal power plants) filled glass-jute (GJJG) hybrid epoxy composites have been studied experimentally.Jute(45º-45º) and glass(0-90º) of fabric orientation reinforced epoxy composites filled with different...

The solid particle erosion characteristics of the cenosphere filled GJJG hybrid epoxy composites have been studied experimentally in the present article. Jute(45º-45º) and glass(0-90º) of fabric orientation of reinforced composites filled with different doses of ceramic rich industrial waste product cenosphere of wt. percentage(5%,10%,15% and 20%)...

The solid particle erosion characteristics of the cenosphere filled GJJG hybrid epoxy composites have been studied experimentally in the present article. Jute(45º-45º) and glass(0-90º) of fabric orientation of reinforced composites filled with different doses of ceramic rich industrial waste product cenosphere of wt. percentage(5%,10%,15% and 20%)...

As major historical periods such as Stone Age, Bronze Age, and Iron Age, the development of new materials was the fundamental to all the periods. In the present investigation, a new hybrid composite with epoxy as a resin and reinforcing both biowaste (jute) and traditional fiber (glass) as continues layered mat composites and also study experimenta...

The processing, characterization, and wear response of a new class of natural fiber ( Luffa cylindrica ) hybrid composite are described. Composite laminates were fabricated by using the hand lay-up technique. Composites were made with a total of four piles by varying the number and position of glass layers so as to obtain different stacking sequenc...

Carbon black derived from wood apple shell, was obtained by pyrolysis of wood apple shell particles at 400 °C, characterized by EDS analyzer and uses as filler in polymer composites. An experimental study was conducted to compare the erosive wear behavior of both raw and carbon black wood apple shell particles filled epoxy resin matrix composites....

In this work, the influence of micro/nano alumina (Al2O3) on the mechanical properties of epoxy/jute fiber/glass fiber laminates was studied. All the composites are fabricated by the hand lay-up technique. The flexural strength and tensile strength of the epoxy/hybrid laminates were increased profoundly in the presence of micro/nano alumina. The ep...

The aim of this paper is to replace the traditional fiber composites with a natural-fiber composite in perception of tribological and mechanical accepts. A systematic study has been carried out to investigate jute fiber properties when incorporated into epoxy matrix. Thermogravimetric analysis has also been carried out for jute and epoxy for therma...

Natural fibers are emerging as promising reinforcement material for fiber reinforced polymer (FRP) composites. Numerous possible material combinations, unique self-lubrication capabilities and low operating noise make the FRP composites a potentially better material over conventional metallic materials for tribological applications In this paper, a...

Adding biodegradable shell particulates to an epoxy resin matrix yields superior thermal stability and mechanical properties while lowering fabrication cost.

Environmental awareness today is motivating the researchers worldwide on the studies of natural fiber reinforced polymer composite and cost effective option to synthetic fiber. The easy availability of natural fibers and manufacturing process have tempted researchers to try locally available inexpensive fibers and to study their feasibility of rein...

During the last century natural fibers and particulates are used as reinforcement in polymer composite has been continuously growing in the composite industry. This polymer matrix composite has wide range of applications in hostile environment where they are exposed to external attacks such as solid particle erosion. Also, the mechanical properties...

A series of experiments have been conducted to study the effects of different carbonization temperature (850, 900 and 950 ℃) on the abrasive wear behaviour of carbonized rice husk char epoxy composite. The wear behaviour was studied using a pin-on-disc machine against 400 grit size abrasive paper. All the tests were carried out at room temperature...

During the last century natural fibers are used as reinforcement in polymer composite has been continuously growing in the composite industry. This polymer matrix composite has wide range of application in hostile environment where it is exposed to external attacks such as solid particle erosion. The mechanical properties of different polymer compo...

In the present investigation a new hybrid composites with epoxy as a resin and reinforcing both bio waste (jute) and industrial waste (fly ash) and study of the effect of the fly ash filler on tensile and flexural properties experimentally. Composites were prepared by using hand lay-up technique. All the laminates were prepared with a total of 4 pi...

Natural fibers are considered as a good reinforcement in composite material because of their good mechanical properties and low density. However the main drawback of these fibers is moisture absorption in their outdoor applications. The present investigation is aimed at processing a composite using jute fiber and epoxy resin as matrix and red mud a...

Polymers and polymer matrix composites with conventional reinforcements are finding an ever-increasing application as structural materials in various components and engineering systems. They find great potentials in industry as a class of important tribo-engineering materials, not just for ease in manufacturing and low unit cost, but also for their...

Different types of natural fiber are used to reduce the traditional fiber in composite fabrication due to their inherent properties when compared to other materials. New natural fiber reinforced composite (lantana-camara and bagasse) were fabricated with different volume fraction (10, 20, 30) and also tested experimentally with regard to their spec...

Bagasse is a by-product of the sugarcane milling process, and it also is an important fuel resource for that industry. In this study an attempt has been made to utilize this by-product to prepare a composite using epoxy resin. The fibers surface was modified by alkali treatment with 5% NaOH solution for 0, 2, 4 and 6 hrs. The effect of fiber surfac...

In this present work the effect of stacking sequence on erosive wear behavior of untreated woven jute and glass fabric reinforced epoxy hybrid composites has been investigated experimentally. Composite Laminates were fabricated by hand lay-up technique in a mold and cured under light pressure for one hour, followed by curing at room temperature for...

This paper describes the moisture absorption behavior and its effect on mechanical properties of Lantana camara fiber reinforced epoxy composite. Composite samples reinforced with different wt% of fibers were prepared by hand lay-up technique. Increase in tensile and flexural strength was observed with increase in fiber content up to 30%. Moisture...

This work aims to present a study on abrasive wear behaviour of locally available Lantana-Camara fiber (LCF), reinforced in epoxy matrix. Wear tests are carried out in dry conditions on a pin-on-disc machine against 400 grit size abrasive paper with test speed of 0.314 m/s and normal load 5, 10, 15, 20 and 25 N. The effects of fiber content on abra...

In this study, the abrasive wear behaviour of a locally available Lantana camara fibre (LCF)-reinforced epoxy composite was investigated. The wear behaviour was studied using a pin-on-disc apparatus against 400 grit size abrasive paper. All the tests were carried out at room temperature under 5, 10, 15, 20, and 25 N normal loads and three sliding v...

Experiments were carried out to study the effects of impingement angle and particle velocity on the solid particle erosion behavior of Bagasse Fiber Reinforced Polymer Composites (BFRPCs). The erosive wear is evaluated at different impingement angles from 30° ° ° ° to 90° ° ° ° at four different velocities of 48, 70, 82 and 109 m/s. The erodent use...

In this paper, an experimental study has been conducted to determine the abrasive wear behavior of bagasse fiber reinforced epoxy composite in different directions, namely parallel orientation (PO), anti-parallel orientation (APO) and normal orientation (NO) by using a two body abrasion wear tester. Three different types of abrasives wear behaviour...

The present investigation reports the solid particle erosion behaviour of randomly oriented short Lantana-Camara fiber-reinforced polymer composites (LCRPCs) using silica sand particles (200 ± 50 µm) as an erodent. The erosion rates of these composites have been evaluated at different impingement angles (15°–90°) and impact velocities (48 m/s–109 m...

Bagasse fiber is a residue of the sugar cane milling process. In this research bagasse fiber has been used as a reinforcing component in epoxy resin to open up further possibilities in waste management. The chemical treatment acetylation was carried out to modify the fiber properties. The effect of fiber treatment on the mechanical properties such...

The present investigation is aimed at processing a composite using fly ash, jute with epoxy (binder) and to study its weathering behaviour on mechanical properties such as flexural strength. The fracture surfaces of the specimen are examined under scanning electron microscope. From the study, it appears that fiber pullout is the predominant mode of...

The sugar cane residue bagasse is an underutilized renewable agricultural material. Bagasse is generally grey-yellow to pale green in color. It is bulky and quite nonuniform in particle size. As it is produced at the sugar mills, bagasse is used as fuel in the power plant. However, wherever there is large scale production of sugarcane, there will b...

The present work has been undertaken with an objective to explore the use of redmud as a reinforcing material as a low cost option. This redmud emerges as a major waste material during production of alumina from bauxite by the Bayer's process. It comprises oxides of iron, titanium, aluminum and silica along with some other minor constituents. The e...

Red mud emerges as the major waste material during production of alumina from bauxite by the Bayer's process. It comprises of oxides of iron, titanium, aluminum and silica along with some other minor constituents. Based on economics as well as environmental related issues, enormous efforts have been directed worldwide towards red mud management iss...

Polymer composites are in great demand due to their versatility. Their uses as machine components vary from household articles to aerospace applications. The degradation/ variation of the mechanical properties of the specimen treated at different environmental/ atmospheric conditions are a primary concern when recommending such a composite for part...

In this paper, an experimental study has been conducted to determine the abrasive wear behaviour of bamboo, which is a cellulosic fibre reinforced composite in different directions namely LL, LT and TT by using a Suga Abrasion Wear Tester. Three different types of abrasive wear behaviours have been observed in bamboo in three orientations and follo...

This paper deals with an experimental investigation of wear behaviour of aluminium redmud composite with different volume fractions under dry sliding condition and under different working conditions using a pin-on disc machine. The wear rate and coefficient of friction were found to be functions of normal load, sliding velocity and redmud content....

Composites are attractive materials for a number of applications. Their use is limited by their cost and this work looks at the use of fly- ash as a low cost option. The present work deals with an experimental investigation of wear behaviour of Aluminium fly-ash composite with different volume fraction (10, 15, and 20 percent by weight) in dry slid...

The present work deals with an experimental investigation of wear behaviour of aluminium flyash composite with different volume fractions (10%, 15%, 20% by weight) under dry sliding condition and different working conditions using a pin-on-disc machine. The wear rate and coefficient of friction are found to be functions of normal load, sliding velo...

In this investigation, a simplified method has been discussed to predict accurately the pressure distribution and real area of contact in wheel-rail contact under normal load only. It is established from the study that the present method is better suitable in severely worn-out wheel-rail contact system instead of the Hertzian simulation.