Title

Microwave Sintering of a ZrB2-B4C Particulate Ceramic Composite

Abstract

A two phase particulate ceramic composite containing ZrB2 and B4C was densified by microwave sintering a mixture of ZrB2 and 4 wt% B4C powders. The particulate composite reached >98% relative density at processing temperatures as low as 1720 °C. In comparison to conventional sintering, microwave sintering promoted densification of the composite at lower temperatures without promoting rapid grain growth. Vickers' hardness and fracture toughness of the microwave sintered specimens were as high as 17.5 GPa and 3.8 MPa m1/2, respectively.

Department(s)

Materials Science and Engineering

Sponsor(s)

National Science Foundation (U.S.)

Keywords and Phrases

Boron Carbide; Mechanical Properties; Microwave Sintering; Zirconium Diboride

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2008 Elsevier, All rights reserved.


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