High Strength ZrB₂-based Ceramics

Author

Adam L. Chamberlain
William Fahrenholtz, Missouri University of Science and TechnologyFollow
Greg Hilmas, Missouri University of Science and TechnologyFollow
Donald T. Ellerby

Abstract

Zirconium diboride (ZrB₂) and ZrB₂ ceramics containing 10, 20, and 30 vol% SiC particulates were prepared from commercially available powders by hot pressing. Four-point bend strength, fracture toughness, elastic modulus, and hardness were measured. Modulus and hardness did not vary significantly with SiC content. in contrast, strength and toughness increased as SiC content increased. Strength increased from 565 MPa for ZrB2 to >1000 MPa for samples containing 20 or 30 vol% SiC. the increase in strength was attributed to a decrease in grain size and the presence of WC.

Recommended Citation

A. L. Chamberlain et al., "High Strength ZrB₂-based Ceramics," Journal of the American Ceramic Society, pp. 1170 - 1172, Wiley-Blackwell, Jan 2004.

The definitive version is available at https://doi.org/10.1111/j.1551-2916.2004.01170.x

Department(s)

Materials Science and Engineering

Keywords and Phrases

SiC Particulates; Zirconium Diboride

International Standard Serial Number (ISSN)

0002-7820; 1551-2916

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2004 Wiley-Blackwell, All rights reserved.

Publication Date

01 Jan 2004