The influence of high pressure on TiC-B^sub 4^C reaction kinetics

The influence of high pressure on TiB2-C structure formation during reactive sintering of TiC-B4C precursors is investigated. The isostatic pressure of 8 GPa has been shown to intensify the charge consolidation but to suppress new phase emerging. The latter confirmed gas phase diffusion to be predom...

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Bibliographic Details
Published in:International journal of refractory metals & hard materials 2018-09, Vol.75, p.234
Main Authors: Popov, Oleksii, Klepko, Alexandra, Lutsak, Edward
Format: Article
Language:English
Subjects:
Activated sintering
Boron
Boron carbide
Ceramics
Isostatic pressure
Kinetics
Reaction kinetics
Sintering
Sublimation
Titanium
Titanium diboride
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Summary:The influence of high pressure on TiB2-C structure formation during reactive sintering of TiC-B4C precursors is investigated. The isostatic pressure of 8 GPa has been shown to intensify the charge consolidation but to suppress new phase emerging. The latter confirmed gas phase diffusion to be predominant mechanism of boron to TiC transfer, and limiting stage of TiC-B4C to TiB2-C high temperature transformation to be B from B4C sublimation.
ISSN:0263-4368