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Synthesis and characterization of (Zr 1/3 Nb 1/3 Ti 1/3 )C metal carbide solid‐solution ceramic
Author(s) -
Ye Beilin,
Chu Yanhui,
Huang Kehan,
Liu Da
Publication year - 2019
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/jace.16141
Subject(s) - materials science , ceramic , solid solution , carbide , hot pressing , sintering , thermal diffusivity , max phases , thermal conductivity , zirconium carbide , metal , titanium carbide , metallurgy , composite material , mineralogy , thermodynamics , physics , chemistry
(Zr 1/3 Nb 1/3 Ti 1/3 )C metal carbide solid‐solution ceramic has been successfully fabricated by hot pressing sintering at 2473 K using ZrC, NbC, and TiC powders as raw materials. The results show that the as‐prepared solid‐solution ceramic possesses a single rock‐salt crystal structure of metal carbides and simultaneously exhibits high compositional uniformity from nanoscale to microscale. By taking advantage of these unique features, it shows relatively high hardness of 38.8 ± 4.4 Gpa and elastic modulus of 481.8 ± 31.0 Gpa and relatively low thermal conductivity of 17.1 ± 0.3 W/(m·K) and thermal diffusivity of 6.1 ± 0.1 mm 2 /s, which may attribute primarily to the presence of solid solution effects.