The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 2010
Filed:
May. 12, 2008
Shi C. Zhang, Rolla, MO (US);
Gregory E. Hilmas, Rolla, MO (US);
William G. Fahrenholtz, Rolla, MO (US);
Shi C. Zhang, Rolla, MO (US);
Gregory E. Hilmas, Rolla, MO (US);
William G. Fahrenholtz, Rolla, MO (US);
Other;
Abstract
A method of sintering a ZrB—SiC composite body at ambient pressures, including blending a first predetermined amount of ZrBpowder 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 ZrBmatrix.