PRODUCTION OF INTERFACE CONTROLLED CERAMIC

Japanese Patent JP3738784

B2

PURPOSE: To obtain a ceramic material having high toughness and high strength by applying a sintering assistant on the surface of ceramic particles, then applying a ceramic source material thereon, and further coating the particles with a ceramic material, compacting and sintering.
CONSTITUTION: A sintering assistant 2 is applied on the surface of a ceramic particle 1 as the core, on which a ceramic source material 3 of the same material as the core ceramic particle is applied. Further, ceramic particles are deposited on the surface of the core ceramic particle in order to control the interface, or a ceramic source material 4 to control the interface is applied on the core ceramic particle. These particles are compacted and sintered to obtain the objective interface-controlled ceramic material. In this production method, the ceramic material after sintered is preferably subjected to the heat treatment to make solid soln. or to precipitate. As for the ceramic material, silicon nitride or silicon carbide can be used. The process for depositing ceramic particles to control the interface may be performed by using aggregation of a solid powder.

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Kaoru Miyahara
Nobuo Ninomiya
Tadashi Sasa

JP16028595A

January 25, 2006

June 27, 1995

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Ishikawajima Harima Heavy Industries Co., Ltd.

C04B35/565; C04B35/628; B01J2/00; C04B35/626; (IPC1-7): C04B35/628; B01J2/00; C04B35/626; C04B35/565

JP3210025A
JP61017466A
JP62292666A
JP1261266A
JP5097518A
JP4012049A
JP4260654A

Yoshiaki Shimamura
Tomihisa Koyama

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