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Tribological Properties of Polycrystalline Ti 3 SiC 2 and Al 2 O 3 ‐Reinforced Ti 3 SiC 2 Composites
Author(s) -
Hu Chunfeng,
Zhou Yanchun,
Bao Yiwang,
Wan Detian
Publication year - 2006
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.1551-2916.2006.01253.x
Subject(s) - materials science , tribology , reciprocating motion , composite material , crystallite , wear resistance , bearing (navigation) , metallurgy , cartography , geography
Tribological properties of Ti 3 SiC 2 and Al 2 O 3 ‐reinforced Ti 3 SiC 2 composites (10 and 20 vol% Al 2 O 3 ) were investigated by using an AISI‐52100 bearing steel ball dryly sliding on a linear reciprocating athletic specimen. The friction coefficients were found varying only in a range of 0.1 under the applied loads (2.5, 5, and 10 N), and the wear rates of the composites decreased with increasing Al 2 O 3 content. The enhanced wear resistance is mainly attributed to the hard Al 2 O 3 particles nail the surrounding soft matrix and decentrale the shear stresses under the sliding ball to reduce the wear losses.