Title

Enhanced Mechanical Properties of Alumina by Dispersed Titanium Diboride Particulate Inclusions

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, (KIC) are compared and discussed.

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

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1991 Wiley-Blackwell, All rights reserved.

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