TY - JOUR
T1 - Dry sliding wear of epoxy/cenosphere syntactic foams
AU - Manakari, Vyasaraj
AU - Parande, Gururaj
AU - Doddamani, Mrityunjay
AU - Gaitonde, V. N.
AU - Siddhalingeshwar, I. G.
AU - Kishore,
AU - Shunmugasamy, Vasanth Chakravarthy
AU - Gupta, Nikhil
N1 - Funding Information:
Authors acknowledge the support provided by BVB College of Engineering and Technology , Hubli, Karnataka, India, under Research Experience for Undergraduates (REU) program. Authors are grateful to Management, Dr. Ashok Shettar (Principal) and Dr. P. G. Tewari (Head, Mechanical Engineering) for the encouragement and support. The author NG acknowledges support by Office of Naval Research Grant N00014-10-1-0988 . The opinions of the authors expressed herein do not necessarily state or reflect those of the United States Government or the ONR, and shall not be used for advertising or product endorsement purposes.
Publisher Copyright:
© 2015 Elsevier Ltd.
PY - 2015/8/17
Y1 - 2015/8/17
N2 - 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 (ws) and coefficient of friction (μ). With increasing F, the wear rate increased, whereas ws and μ decreased. With increase in filler content, the wear rate and ws decreased, while the μ 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.
AB - 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 (ws) and coefficient of friction (μ). With increasing F, the wear rate increased, whereas ws and μ decreased. With increase in filler content, the wear rate and ws decreased, while the μ 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.
KW - Cenosphere
KW - Response surface methodology
KW - Syntactic foam
KW - Wear
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U2 - 10.1016/j.triboint.2015.07.026
DO - 10.1016/j.triboint.2015.07.026
M3 - Article
AN - SCOPUS:84939235790
SN - 0301-679X
VL - 92
SP - 425
EP - 438
JO - Tribology International
JF - Tribology International
M1 - 3761
ER -