Nhk Spring Co., Ltd.

National Institute for Materials Science

Yokohama National University

Wataru Nakao

Akira Tange

Masanori Mitome

Morimichi Kai

Taichi Abe

Toshio Osada

Koichi Tango

Toru Hara

Kiichi Kamoda

Takahito Ohmura

The present invention relates to an oxidation-induced highly-functional self-healing ceramic composition, a method for producing the ceramic composition, a use of the ceramic composition and a method for achieving the enhancement of the functionality of the ceramic composition, by focusing on a repairing stage and a remodeling state in a self-healing process and by carrying out elemental and structural designing of an oxidation-induced self-healing ceramic composition for the purpose of speeding up these stages.

Oxidation-induced self-healing ceramic composition containing healing activator, method for producing same, use of same, and method for enhancing functionality of oxidation-induced self-healing ceramic compositions

A carburization device includes a heating furnace which heats a material, a transfer mechanism, an alcohol vapor generator, an alcohol vapor spraying portion, a quenching tank, and an exhaust heat intake tube. The transfer mechanism moves a plurality of materials. The alcohol vapor generator uses part of heat generated by the heating furnace as a heat source. As the alcohol vapor spraying portion repeats a vapor spraying step and a diffusion step a plurality of times in the heating furnace. In the vapor spraying step, by spraying alcohol vapor on the material which moves inside the heating furnace, carbon in the alcohol is adsorbed to the material. In the diffusion step, an interval for diffusing the carbon adsorbed to the material is taken.

Carburization device and carburization method

Growing community of inventors

Yokohama, Japan

Wataru Nakao