Denki Kagaku Kogyo Kabushiki Kaisha

Ryuichi Terasaki

Hideki Hirotsuru

Yoshinori Terui

Akira Miyai

Kenji Nomura

Yukihiko Nakajima

Mitsuaki Saito

Kazuyuki Hiruta

Yoichi Ogata

Shinsei Sato

Kazumi Nozawa

A silicon carbide composite which is a flat composite comprising a porous preform of silicon carbide and a metal containing aluminum as the main component, infiltrated into the porous preform, said composite having a warpage of at most 250 &mgr;m per 10 cm of the principal plane length of the composite.

Silicon carbide composite, method for producing it and heat dissipation device employing it

A metal-ceramics composite comprising a porous inorganic structure and a metal containing aluminum as the main component, infiltrated into the porous inorganic structure, wherein a part of the porous inorganic structure is made of an inorganic fiber and a hardened product of a hydraulic inorganic substance.

Metal-ceramics composite, heat dissipation device employing it, and processes for producing them

A method for producing a single crystal, which comprises (1) placing a metal layer as a pattern at a desired position on the surface of a single crystal substrate, (2) etching the surface of the single crystal substrate around the pattern, and (3) in a raw material gas atmosphere containing an element or elements constituting the single crystal, taking the element or elements in the metal layer at the pattern and permitting a needle-like single crystal to grow perpendicularly.

Method for producing single crystal, and needle-like single crystal

A glassy carbon-coated article contains a graphite substrate and a glassy carbon coating applied on the graphite substrate. The coating has a thickness of 15 to 200 microns. The glassy carbon is obtained by heating a raw material containing a thermal decomposition product of an organic polymer and a heat resistant inorganic substance. The difference of thermal expansion coefficient between the glassy carbon and the graphite substrate is not higher than 1.5.times.10.sup.-6 /.degree.C.

Glassy carbon-coated article

Growing community of inventors

Tokyo, Japan

Ryuichi Terasaki