Oxidation of Ti(C,N)-based ceramics exposed at 1373 K in air

Citation
Ds. Park et al., Oxidation of Ti(C,N)-based ceramics exposed at 1373 K in air, J AM CERAM, 83(3), 2000, pp. 672-674
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
83
Issue
3
Year of publication
2000
Pages
672 - 674
Database
ISI
SICI code
0002-7820(200003)83:3<672:OOTCEA>2.0.ZU;2-8
Abstract
Ti(C,N)-based ceramics that contained NbC, TaC, and WC were exposed at 1373 K in air for 10 h to study the effect of these meatal carbides on the oxid ation resistance. The addition of 10 mol% of NbC and 10 mol% of TaC to TI(C ,N) ceramics improved the oxidation resistance, whereas additions of 10 mol % of WC worsened the oxidation resistance. Weight gain due to the oxidation of TI(C,N) ceramics with added WC varied in a complicated way, relative to the amount of WC that was involved. There was a competition between weight gain due to the oxidation and weight loss due to the volatile tungsten oxi de.