A method of sintering a ZrB2-SiC composite body at ambient pressures, including blending a first predetermined amount of ZrB2 powder with a second predetermined amount of SiC powder, wherein both powders are characterized by the presence of surface oxide impurities. Next the blended powders are mixed to yield a substantially homogeneous powder mixture and a portion of the substantially homogeneous powder mixture is formed into a green body. The body is fired to a first temperature, wherein substantially all surface oxide impurities are reduced and/or volatilized to substantially eliminate oxides from the green body, and the body is heated to a second temperature and sintered to yield a composite body of at least about 99 percent theoretical density and characterized by SiC whisker-like inclusions distributed substantially evenly in a ZrB2 matrix.
S. C. Zhang et al., "Method for Producing Pressurelessly Sintered Zirconium Diboride/Silicon Carbide Composite Bodies," U.S. Patents, Jul 2012.
Materials Science and Engineering
Patent Application Number
© 2012 The Curators of the University of Missouri, All rights reserved.
05 Jul 2012