Cyclic oxidation behavior of TiB2 pellets at elevated temperatures

ÖZKAN İ., DOKUMACI ALKAN E., ÖNAY A. B.

JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY, vol.53, no.2, pp.415-420, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 53 Issue: 2
  • Publication Date: 2017
  • Doi Number: 10.1007/s41779-017-0050-x
  • Journal Name: JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.415-420
  • Keywords: Cyclic oxidation, Titaniumdiboride, Oxidation behavior, TITANIUM DIBORIDE, COMPOSITE
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this study, cyclic oxidation behavior of cold-pressed TiB2 pellets was investigated. Oxidation tests were conducted at temperatures between 800 and 1200 degrees C for 5, 10, 15, and 20 h. XRD analyses indicated that TiO2 and B2O3 phases were formed as oxidation products. It was observed that cyclic oxidation behaviors of the samples depended on temperature and time. Based on the analysis results and the microstructure observations, volatilization of B2O3 had significant effect on the oxidation of the samples as the temperature increased. When compared to the literature, samples had higher oxidation rates due to their porosities.