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Mechanical and Thermophysical Properties of Zr–Al–Si–C Ceramics
Author(s) -
He LingFeng,
Bao YiWang,
Wang JingYang,
Li MeiShuan,
Zhou YanChun
Publication year - 2009
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.1551-2916.2008.02879.x
Subject(s) - materials science , carbide , zirconium carbide , thermal expansion , zirconium , ceramic , aluminium , composite material , layer (electronics) , silicon carbide , debye model , metallurgy , thermodynamics , physics
The mechanical and thermophysical properties of quaternary‐layered carbides, Zr 2 [Al(Si)] 4 C 5 and Zr 3 [Al(Si)] 4 C 6 have been investigated and compared with those of Zr 2 Al 3 C 4 and Zr 3 Al 3 C 5 . These four carbides are generally alike in mechanical and thermophysical properties due to their similar crystal structures that consisting of alternatively stacked ZrC layers and Al 3 C 2 /[Al(Si)] 4 C 3 slabs. The layer thickness of zirconium carbide and aluminum carbide has effects on their properties. Thicker layer of zirconium carbide and/or thinner layer of aluminum carbides are in favor of stiffness, hardness, thermal, and electrical conductivities, but go against density, specific stiffness, Debye temperature, and coefficient of thermal expansion.