Title

Boron Containing Ceramic Particulate and Whisker Enhancement of the Fracture Toughness of Ceramic Matrix Composites

Abstract

Boron carbide particles and whiskers, and titanium dioboride particles are demonstrated to be effective reinforcement materials to enhance the mechanical properties of a ceramic matrix. Various volume percents of titanium diboride particles, boron carbide particles, and boron carbide whiskers were dispersed in two different ceramic materials, ??alumina and the ceramic ionic conductor ???alumina. The critical parameters of volume fraction, size, and shape of the reinforcing additives are discussed. The simultaneous enhancement of both the fracture toughness and the modulus of rupture of ??alumina is shown.

Department(s)

Materials Science and Engineering

Sponsor(s)

American Institute of Physics

Keywords and Phrases

Ceramics; Boron Additions; Fracture Properties; Quantity Ratio; Flexural Strength; Scanning Electron Microscopy; X?ray Diffraction; Crystal Structure; Titanium Alloys; Aluminium Alloys; Titanium Borides; Boron Carbides; Aluminium Oxides; Cracks; Impurities; Matrix Materials; Composite Materials; Whiskers

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1991 American Institute of Physics (AIP), All rights reserved.


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