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Dry Sliding Wear Behavior of Al 2 O 3 –SiC Submicro‐ and Nano‐Composites
Author(s) -
Guicciardi Stefano,
Sciti Diletta,
Melandri Cesare,
Bellosi Alida
Publication year - 2005
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2004.00040.x
Subject(s) - materials science , composite material , wear resistance , dry friction , particle size , grain size , matrix (chemical analysis) , particle (ecology) , nano , chemical engineering , oceanography , engineering , geology
The wear behavior of a pure alumina matrix and two Al 2 O 3 ‐based composites, one with 5 vol% SiC nanosized particles (mean size 52 nm) and the other with 5 vol% SiC sub‐microsized particles (mean size 230 nm), was studied in two different experimental conditions corresponding to mild and severe wear regime, respectively. Whether considering the friction or the wear resistance, in the mild regime no difference was observed among the materials. In the severe regime, the composites performed much better than the matrix alone due to stronger grain boundaries. The SiC particle size had no influence on the mean wear resistance.