Toyo Tanso Co., Ltd.

Rie Tao

Takanori Kawano

Yoshio Shodai

A carbon material and a method of manufacturing the carbon material are provided. By affixing diamond particles onto a carbonaceous substrate in a condition in which etching caused by hydrogen radicals is unlikely to occur, the substrate etching rate can be suppressed, and the carbon material is allowed to have a diamond thin film having excellent adhesion capability. The carbon material has a carbonaceous substrate showing a weight decrease under a diamond synthesis condition, diamond particles disposed on a surface of the carbonaceous substrate, and a diamond layer having the diamond particles as seeds. The weight of the diamond particles per unit area is set to from 1.0&#xd7;10g/cmto less than 3.0&#xd7;10g/cm.

Carbon material covered with diamond thin film and method of manufacturing same

A carbonaceous substrate of the present invention is such that an X-ray diffraction pattern thereof is a complex profile and includes at least two (002) diffraction lines; and the substrates contains crystallites with different interlayer spacings. Further, in the X-ray diffraction pattern, (002) diffraction lines between 2&#x3b8;=10&#xb0; and 2&#x3b8;=30&#xb0; have an asymmetric shape; and the X-ray diffraction pattern includes at least two pattern components which are a diffraction line whose center is at 2&#x3b8;=26&#xb0; and a diffraction line whose center is at a lower angle than 2&#x3b8;=26&#xb0;. Further, the carbonaceous substrate contains crystals wherein the periodic distance dis 0.34 nm or more and the crystallite size Lcis 20 nm or less based on the X-ray diffraction lines. An electrodes for fluorine electrolysis of the present invention includes the carbonaceous substrate on which a conductive diamond thin film is formed.

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Osaka, Japan

Rie Tao