Coorstek, Inc.

Coors Porcelain Company

Brian Seegmiller

Matthew A Simpson

Russell Bell

Cesar Alfaro

Steve Govorchin

Anne Cenedella

Mark S Greenwell

Alden C Simmons

Brian I Dinkha

Paul B Jasa

Frank Anderson

Matthew Schaefer

Ceramic bonding tool with textured tip

The present invention provides a semiconductive zirconia sintering material comprising more than 2% by weight of aluminum oxide and sintered zirconia material derived therefrom as well as a method of producing the sintered material. The sintered semiconductive zirconia materials of the present invention have a better physical and mechanical properties than conventional sintered semiconductive zirconia materials.

Semiconductive zirconia sintering material comprising aluminum oxide

A ceramic munitions projectile, particularly useful for practice or target munitions is provided. The projectile has a tensile strength greater than about 250 MPa, a critical stress intensity factor greater than about 6 MPam.sup.1/2, and a Weibull modulus greater than about 10. Preferably the projectile is frangible.

Ceramic munitions projectile

A ceramic munitions projectile, particularly useful for practice or target munitions is provided. The projectile is preferably made of zirconia which is densified by a pressureless sintering method. The projectile has sufficient toughness to withstand acceleration and torque created during projectile firing and trajectory.

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Arvada, CO, United States of America

Brian Seegmiller