Other

Mamoru Omori

Toshio Hirai

Humihiko Takei

Masao Tokita

Keigo Ohira

A method for advantageously producing sintered eutectic ceramics having a homogenous and dense structure, in particular, a eutectic containing a rare earth aluminate compound. The method allows eutectic powder of alumina and a rare earth aluminate compound to stand at a temperature of 1300-1700&deg; C. for 1-120 minutes under vacuum or in an non-oxidative atmosphere under a pressure of 5-100 MPa using a spark plasma sintering apparatus, thereby causing crystal growth to occur to obtain a rare earth aluminate eutectic structure crystal.

Method for preparing eutectic ceramics

Mixed oxide composite ceramics and method of producing the same

Rare earth oxide-alumina-silica sintered body and method of producing

Sintered silicon carbide moldings produced by using as a sintering aid a composition comprising oxide(s) of at least one element selected from the group consisting of Li, Be, Mg, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Sr, Zr, Nb, Mo, Ba, Tc, Ta, W and Th in addition to known sintering aids used for the production of sintered silicon carbide moldings, such as rare earth element oxides, boron oxide and aluminum oxide, and a process for production thereof.

Sintered silicon carbide molding and process for production thereof

A series of sintered shapes of silicon carbide of high strength comprising 0.027 to 11.300 atomic percent of one or more members of rare earth oxides and the balance of silicon carbide are disclosed. Method of making such silicon carbide shapes is also disclosed.

Method of preparing sintered shapes of silicon carbide

A composite silicon carbide sintered shape is provided in two forms in which the former form includes rare earth oxides as a sintering assist, and the latter form includes rare earth oxides and/or aluminum oxide or boron oxide as a sintering assist, characterized in that both forms have a surface layer abundant in rare earth oxides. Methods for manufacturing such sintered shapes are also provided.

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Miyagi-ken, Japan

Mamoru Omori