logo

For the Inventor, By the Inventor

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.:

US 9416055 B1

PDFFull Text
Date of Patent:
Aug. 16, 2016

Filed:

Jun. 21, 2013

Ceramic compositions comprising alumina

Applicant:

Imerys Ceramics France, Paris, FR;

Inventors:

Gilles Gasgnier, Isle, FR;

Wen Zhang, Limoges, FR;

Assignee:

Imerys Ceramics France, Paris, FR;

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner LLP

Primary Examiner:

Karl Group

Int. Cl.
CPC ...
C04B 35/111 (2006.01); C04B 35/117 (2006.01); F41H 5/00 (2006.01); C04B 35/101 (2006.01); C04B 35/103 (2006.01); C04B 35/106 (2006.01); C04B 35/626 (2006.01); C04B 35/645 (2006.01); F41H 5/04 (2006.01); C04B 35/64 (2006.01);
U.S. Cl.
CPC ...
C04B 35/101 (2013.01); C04B 35/103 (2013.01); C04B 35/106 (2013.01); C04B 35/117 (2013.01); C04B 35/6261 (2013.01); C04B 35/62655 (2013.01); C04B 35/62665 (2013.01); C04B 35/62685 (2013.01); C04B 35/64 (2013.01); C04B 35/6455 (2013.01); F41H 5/0414 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/386 (2013.01); C04B 2235/3821 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/3843 (2013.01); C04B 2235/3847 (2013.01); C04B 2235/427 (2013.01); C04B 2235/52 (2013.01); C04B 2235/5418 (2013.01); C04B 2235/5427 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/6021 (2013.01); C04B 2235/6022 (2013.01); C04B 2235/6025 (2013.01); C04B 2235/6027 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/72 (2013.01); C04B 2235/77 (2013.01); C04B 2235/783 (2013.01); C04B 2235/96 (2013.01); Y10T 428/2982 (2015.01);
Abstract

A composition suitable for firing to obtain a ceramic material therefrom may include from about 1 to about 40 wt. % based on the total dry weight of the composition a first particulate material having a Mohs hardness of at least about 8.5 and a dof from about 7 μm to about 500 μm. The composition may include at least about 50 wt. % based on the total dry weight of the composition a second particulate material comprising alumina. The composition may include from 0 to about 10 wt. % based on the total dry weight of the composition a sintering aid. A green body or ceramic material may be formed from the composition. Ballistic armor may be formed from the composition or may include the ceramic material.

Find Patent Forward Citations

Loading…