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:
Jan. 16, 2007
Filed:
May. 17, 2002
Gary A. Gilde, Northeast, MD (US);
Parimal J. Patel, Bel Air, MD (US);
Jerry C. Lasalvia, Belcamp, MD (US);
Gary A. Gilde, Northeast, MD (US);
Parimal J. Patel, Bel Air, MD (US);
Jerry C. Lasalvia, Belcamp, MD (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A dense polycrystalline aluminum oxynitride body is produced. According the method of production, aluminum oxide (alumina) powder and 26 to 40 mole % aluminum nitride powder is mixed to form a very fine powder mixture. The powder mixture is shaped and hot pressed at a moderate temperature, preferably about 1600° C., which is below the temperature of aluminum oxynitride (AlON) formation to produce a dense intermediate body. The dense intermediate body is reacted to produce a highly dense polycrystalline aluminum oxynitride body. The dense body is particularly useful for ballistic armor.