Shin-Etsu Chemical Co., Ltd.

Noboru Yamamoto

Noriaki Hamaya

Ryoji Iida

Masaru Konya

A sprayed article is prepared by thermally spraying ceramic particles of rare earth oxide or fluoride or metal particles of W, Mo or Ta onto an outer or inner surface of a cylindrical carbon substrate to form a sprayed coating, and burning out the carbon substrate, thus leaving the ceramic or metal-base sprayed coating of cylindrical shape having a wall thickness of 0.5-5 mm.

Sprayed article and making method

A coated member comprising a substrate of Mo, Ta, W, Zr or carbon and a coating of rare earth-containing oxide including a surface layer having a Vickers hardness of at least 50; or a coated member comprising a substrate having a coefficient of linear expansion of at least 4&#xd7;10(1/K) and a coating of rare earth-containing oxide thereon is heat resistant and useful as a jig for use in the sintering of powder metallurgical metal, cermet and ceramic materials.

Growing community of inventors

Echizen, Japan

Noboru Yamamoto