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.

Date of Patent:
May. 26, 2015

Filed:

Feb. 05, 2014
Applicant:

Superior Technical Ceramics Corporation, St. Albans, VT (US);

Inventors:

Tariq Quadir, Colchester, VT (US);

Brian H. Gold, Swanton, VT (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/119 (2006.01); C04B 35/64 (2006.01);
U.S. Cl.
CPC ...
C04B 35/64 (2013.01); C04B 35/119 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3246 (2013.01); C04B 2235/77 (2013.01); C04B 2235/786 (2013.01); C04B 2235/96 (2013.01);
Abstract

The present application is directed to a zirconia toughened alumina body and process for making the body. The process involves combining tetragonally stabilized ZrOnanoparticles, Mg(OH)particles and alumina powder into a mixture. All particles of the mixture are milled, formed into a green compact and then sintered. The final composition of the body includes α-AlOtoughened with 0.5 to 2.5 weight percent ZrOin a stabilized tetragonal form and 0.03 to 0.10 weight percent MgO. The composition results in an AlObody with a density less than 4.0 g/cc and strength greater than 50 kpsi.


Find Patent Forward Citations

Quadir, Tariq. (2015). Method of toughening alumina (U.S. Patent No. 9040440). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9040440

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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