Dry sliding wear of epoxy/cenosphere syntactic foams

Manakari, Vyasaraj and Parande, Gururaj and Doddamani, Mrityunjay and Gaitonde, VN and Siddhalingeshwar, IG and Kishore, * and Shunmugasamy, Vasanth Chakravarthy and Gupta, Nikhil (2015) Dry sliding wear of epoxy/cenosphere syntactic foams. In: TRIBOLOGY INTERNATIONAL, 92 . pp. 425-438.

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Abstract

Dry sliding wear behavior of epoxy matrix syntactic foams filled with 20, 40 and 60 wt% fly ash cenosphere is reported based on response surface methodology. Empirical models are constructed and validated based on analysis of variance. Results show that syntactic foams have higher wear resistance than the matrix resin. Among the parameters studied, the applied normal load (F) had a prominent effect on wear rate, specific wear rate (w(s)) and coefficient of friction (mu). With increasing F, the wear rate increased, whereas ws and mu decreased. With increase in filler content, the wear rate and w(s) decreased, while the mu increased. With increase in sliding velocity as well as sliding distance, the wear rate and ws show decreasing trends. Microscopy revealed broken cenospheres forming debris and extensive deformation marks on the wear surface. (C) 2015 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	TRIBOLOGY INTERNATIONAL
Publisher:	ELSEVIER SCI LTD
Additional Information:	Copy right for this article belongs to the ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Keywords:	Cenosphere; Wear; Syntactic foam; Response surface methodology
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	12 Nov 2015 05:05
Last Modified:	12 Nov 2015 05:05
URI:	http://eprints.iisc.ac.in/id/eprint/52711

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