A comprehensive review of techniques for natural fibers as reinforcement in composites: Preparation, processing and characterization.

The increase in awareness of the damage caused by synthetic materials on the environment has led to the development of eco-friendly materials. The researchers have shown a lot of interest in developing such materials which can replace the synthetic materials. As a result, there is an increase in demand for commercial use of the natural fiber-based composites in recent years for various industrial sectors. Natural fibers are sustainable materials which are easily available in nature and have advantages like low-cost, lightweight, renewability, biodegradability and high specific properties. The sustainability of the natural fiber-based composite materials has led to upsurge its applications in various manufacturing sectors. In this paper, we have reviewed the different sources of natural fibers, their properties, modification of natural fibers, the effect of treatments on natural fibers, etc. We also summarize the major applications of natural fibers and their effective use as reinforcement for polymer composite materials.

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Natural Fibers as Sustainable and Renewable Resource for Development of Eco-friendly Composites: A Comprehensive Review

Renewable and sustainable biobased materials: An assessment on biofibers, biofilms, biopolymers and biocomposites

Combined effect of influence of nano additives, combustion chamber geometry and injection timing in a DI diesel engine fuelled with ternary (diesel-biodiesel-ethanol) blends

Characterization of raw and alkali treated new natural cellulosic fiber from Coccinia grandis.L

The current manufacturing trend mainly involves automation precisely to offer better productivity and improved quality. In this context, on-line monitoring of tools becomes essential. Acoustic emission is the most recognized technique used for condition monitoring of machine tools. Grinding is a material removal and surface generation process employed to shape and finish components made of metals and other materials. The research work deals with machining of CUMITUFF WR-90 alumina ceramics by employing two different grinding wheels made of aluminum oxide and silicon carbide under varying depth of cut. Surface roughness of the machined component and wear of both grinding wheels were analyzed using acoustic emission technique. For a constant depth, the quality of machining has been improved for the material grinded using silicon carbide wheel, which is inferred from low surface roughness value compared to material grinded using aluminum oxide wheel.

Acoustic emission testing of surface roughness and wear caused by grinding of ceramic materials

This paper presents the characterization of A356 composite reinforced with fly ash and basalt ash produced by stir casting method. Aluminium metal matrix composites (AMC) are used in wide variety o...

Fabrication and Characterization of A356-Basalt Ash-Fly Ash Composites Processed by Stir Casting Method

Metal matrix composites (MMCs) have superior mechanical strength and wear resistance as compared to base alloy. Aluminium matrix reinforced with low density discontinuous particulate composites has good potential in automobile and aerospace applications. The main challenge is to produce the light weight composite in a cost effective way to achieve the greater properties. In the present study, aluminium( A356) alloy is reinforced with quarry dust (QD) particulates using modified stir casting and the effect of quarry dust on the composites are investigated. Aluminium metal matrix composites (AMCs) have been successfully produced with different weight percentages (0, 5, 7.5 and 10) of quarry dust. Macrohardness and ultimate tensile strength of the composites have improved with the addition of reinforced particulates in the base matrix alloy. Dry sliding wear behavior of AMCs is examined with the help of a pin on disc wear testing machine. It is found that the addition of quarry dust reinforcements increases the wear resistance of the composites. Optical and SEM images revealed the homogeneous distribution of reinforcement particles in the composites.

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Effect Of Reinforcement Of Natural Residue (Quarry Dust) To Enhance The Properties Of Aluminium Metal

Experimental Investigations on the Failure of Diesel Engine Piston

Selecting the right supplier can be one of the most critical decisions for manufacturing firms. Strategic issues often dictate whether a company thrives or fails. When making important decisions, certain people consider the importance of green-friendly criteria before selecting a supplier. Various companies prioritize green suppliers in their selection process. This work considers the grey method of choosing green suppliers by considering the excellence and weakness. In addition to the green suppliers, the allocation of orders is carried out. The green vendors are focused on utilizing grey, and the demand is assigned by utilizing linear discounts for multiple products and time periods. This work introduces an integrated model with multiple products and time periods for determining demand using green criteria. The outcome of this work is to assign orders to the best suppliers to increase total purchase value while reducing total purchase costs. Then, the method is depicted with a numerical model in a linear discount scenario. A sensitivity analysis was carried out. TVP and TCP differences in order quantity and optimum solution are illustrated in the sensitivity analysis. The numerical model is programmed and resolved by LINGO 18.

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A. Kumaravel

Papers

Acoustic emission testing of surface roughness and wear caused by grinding of ceramic materials

Fabrication and Characterization of A356-Basalt Ash-Fly Ash Composites Processed by Stir Casting Method

Effect Of Reinforcement Of Natural Residue (Quarry Dust) To Enhance The Properties Of Aluminium Metal

Experimental Investigations on the Failure of Diesel Engine Piston

Selecting the Optimal Green Supplier and Order Allocation under Linear Discount