Enhanced Mechanical Properties of Alumina by Dispersed Titanium Diboride Particulate Inclusions

Author

Jenq Liu
P. D. Ownby, Missouri University of Science and TechnologyFollow

Abstract

The mechanical properties of composite ceramics composed of 0 to 20 vol% of titanium diboride particles dispersed in an α-alumina matrix were investigated. The alumina-titanium diboride composite powder was hot-pressed at 1470⁰C for 20 min to achieve over 98.8% of the theoretical composite density. The strength and fracture toughness of the twophase, hot-pressed composite were both significantly improved compared to the single-phase alumina. Results from different methods of measuring the stress intensity factor, (K_IC) are compared and discussed.

Recommended Citation

J. Liu and P. D. Ownby, "Enhanced Mechanical Properties of Alumina by Dispersed Titanium Diboride Particulate Inclusions," Journal of the American Ceramic Society, vol. 74, no. 1, pp. 241 - 243, Wiley-Blackwell, Jan 1991.

The definitive version is available at https://doi.org/10.1111/j.1151-2916.1991.tb07327.x

Meeting Name

92nd Annual Meeting of the American Ceramic Society (1990: Apr. 25, Dallas, TX)

Department(s)

Materials Science and Engineering

Keywords and Phrases

Mechanical Properties; Titanium Diboride; Alumina; Composites; Fracture Toughness

International Standard Serial Number (ISSN)

0002-7820; 1551-2916

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1991 Wiley-Blackwell, All rights reserved.

Publication Date

01 Jan 1991