Open AccessStudy of carbide composites processed by spark plasma sintering for Gen IV reactors
Author(s) -
Tanagorn Kwamman
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1380/1/012031
Subject(s) - spark plasma sintering , materials science , composite material , sintering , silicon carbide , plasma , carbide , titanium carbide , diffusion , composite number , physics , quantum mechanics , thermodynamics
The variant of TiC/SiC interfaces was successfully fabricated by SiC powder (P) and lump SiC (L) by spark plasma sintering (SPS) at 1800 °C. There were no chemical reactions between SiC and TiC at that temperature. The larger TiC/SiC interfaces can be created by lump SiC. In contrast, the uniform distribution of TiC/SiC was found when using SiC powders. A network of micro-pores still appeared in both TiC with 30 % SiC and TiC with 50 % SiC composites, stress fields developed at the interface between TiC and SiC grains due to their differences in thermal expansion coefficients, confirmed by the peak shift about 2 cm -1 from Raman peak of 969 cm -1 . Thermal diffusion of TiC/SiC composites was significantly higher than TiC monolith and varied regard to SiC contents.