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Carbon Nanotubes Strengthened Nanophase WC‐Co Hard Alloys
Author(s) -
Tan G.L.,
Wu X.J.,
Li Z.Q.
Publication year - 2006
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200500194
Subject(s) - materials science , carbon nanotube , composite number , indentation hardness , nanorod , composite material , carbon fibers , matrix (chemical analysis) , metallurgy , nanotechnology , microstructure
A novel approach employing C 2 H 2 instead of CO as carburization agent has been applied to fabricate nanophase WC‐Co composite alloys being strengthened by carbon nanotubes and nanorods, which were formed in‐situ during C 2 H 2 carburization process. The sintered composite alloys show exceptionally high microhardness . Carbon nanotubes are supposed to play roles on strengthening the matrix and prohibiting growth of WC grains, thus greatly improving the mechanical properties of the matrix.