Hot Pressing of Tantalum Carbide with and Without Sintering Aids
Densification of Tantalum Carbide was studied by hot pressing at temperatures ranging from 1900 to 2400 C with and without sintering additives. Without sintering additives, the relative density increased from 75% at 1900 C to 96% at 2400C. a microstructural examination showed no observable grain growth up to 2300 C. Densification was enhanced with Carbon (C) and/or B4C additions. TaC with a 0.78 wt% C addition achieved a relative density of 97% at 2300C. Additions of 0.36 wt% B4C or 0.43 wt% B4C and 0.13 wt% C increased the relative density to 98% at 2200C, accompanied by rapid grain growth at 2100C and highertemperatures.
S. C. Zhang et al., "Hot Pressing of Tantalum Carbide with and Without Sintering Aids," Journal of the American Ceramic Society, Wiley-Blackwell, Jan 2007.
The definitive version is available at https://doi.org/10.1111/j.1551-2916.2006.01416.x
Materials Science and Engineering
Keywords and Phrases
Hot Pressing; Sintering Aid; Tantalum Carbide
International Standard Serial Number (ISSN)
Article - Journal
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