Nippon Soda Co., Ltd.

Hiromichi Okamura

Nobuo Kimura

Junichi Morishita

Iwao Kato

Michio Hiraoka

Kinuko Torium

A process for the production of a raw material used for the production of a zirconia sintered body is disclosed. A power containing principally zirconium compounds and a stabilizing agent is added to a solution or slurry containing at least one metal element selected from the group consisting of Mn, Fe, Co, Ni, Cu, and Zn. The stabilizing agent is Y.sub.2 O.sub.3, CaO, MgO, CeO.sub.2, a yttrium compound, calcium compound, magnesium compound or cerium compound which can produce Y.sub.2 O.sub.3, CaO, MgO, or CeO.sub.2 by thermal decomposition. The selected metal element from the group will act as a coating on the zirconia sintered body.

Zirconia sintered body and process for the production thereof

High density alumina zirconia ceramics and a process for production

Hetero-macrocyclic compound coated on the surface of a solid comprising a reaction mixture of (a) hetero-macrocylic compound having at least one amino group in the molecule and (b) a compound selected from the group consisting of an epoxy compound and a isocyanate compound.

Hetero-macrocyclic compound coated on the surface of solid

Growing community of inventors

Odawara, Japan

Hiromichi Okamura