Ted A Montoya

US Patent:

20120313279, Dec 13, 2012

Filed:

Jun 26, 2012

Appl. No.:

13/533758

Inventors:

Roger H. Moore - Albuquerque NM, US
Michae A. Hutchinson - Albuquerque NM, US
Ted V. Montoya - Albuquerque NM, US

Assignee:

Sandia Corporation - Albuquerque NM

International Classification:

B29C 67/04

US Classification:

264 42

Abstract:

A method for producing ceramic articles with multiple distinct regions of density by blending pore formers of different types or amounts with ceramic particles to create multiple pore former/ceramic particle mixtures. The mixtures are placed in a divided die cavity, divider removed and subjected to compaction under pressure to produce a compacted billet. The compacted billet is thermally processed to volatilize organics from the billet and sinter the billet, creating a cohesive billet of ceramic having two or more regions of density.

US Patent:

8212456, Jul 3, 2012

Filed:

Aug 19, 2009

Appl. No.:

12/543540

Inventors:

Roger H. Moore - Albuquerque NM, US
Michael A. Hutchinson - Albuquerque NM, US
Ted V. Montoya - Albuquerque NM, US

Assignee:

Sandia Corporation - Albuquerque NM

International Classification:

H01L 41/187

US Classification:

310358, 252 629 PZ, 252 629 R, 310357, 310339, 310311

Abstract:

A method for producing ceramic articles with multiple distinct regions of density by blending pore formers of different types or amounts with ceramic particles to create multiple pore former/ceramic particle mixtures. The mixtures are placed in a divided die cavity, divider removed and subjected to compaction under pressure to produce a compacted billet. The compacted billet is thermally processed to volatilize organics from the billet and sinter the billet, creating a cohesive billet of ceramic having two or more regions of density.