Microwave Sintering of a ZrB2-B4C Particulate Ceramic Composite
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.
S. Zhu et al., "Microwave Sintering of a ZrB2-B4C Particulate Ceramic Composite," Composites Part A: Applied Science and Manufacturing, Elsevier, Mar 2008.
The definitive version is available at http://dx.doi.org/10.1016/j.compositesa.2008.01.003
Materials Science and Engineering
National Science Foundation (U.S.)
Keywords and Phrases
Boron Carbide; Mechanical Properties; Microwave Sintering; Zirconium Diboride
Article - Journal
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