OXIDE-DISPERSED ALLOY PLATINUM MATERIAL - TANAKA PRECIOUS METAL IND

Title:

OXIDE-DISPERSED ALLOY PLATINUM MATERIAL

Document Type and Number:

WIPO Patent Application WO/2006/040995

Kind Code:

A1

Abstract:

Disclosed is an oxide-dispersed platinum material which can be stably used at high temperatures and has excellent weldability. Specifically disclosed is a platinum material reinforced with dispersed oxide wherein particles composed of an oxide of an additional metal are dispersed in a platinum or platinum alloy matrix. Such a platinum material is characterized in that the oxygen concentration in the material excluding oxygen bonded to the additional metal is not more than 100 ppm. The dispersed particles preferably have an average particle diameter of not more than 0.2 µm and an average interparticle distance of 0.01-2.7 µm. The concentration of the dispersed particles is preferably 0.01-0.5% by weight, and the oxidation ratio of the additional metal is preferably 50-100%.

Inventors:

SHOJI TORU (JP)
TANAKA SEIICHIRO (JP)
TAKEISHI SEIJI (JP)
SEGAWA HIDEO (JP)

Application Number:

PCT/JP2005/018519

Publication Date:

April 20, 2006

Filing Date:

October 06, 2005

Export Citation:

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Assignee:

TANAKA PRECIOUS METAL IND (JP)
SHOJI TORU (JP)
TANAKA SEIICHIRO (JP)
TAKEISHI SEIJI (JP)
SEGAWA HIDEO (JP)

International Classes:

C22C5/04; B22F1/12; B22F1/145; C22C1/05

Foreign References:

JPH10280070A	1998-10-20
JPH06336631A	1994-12-06
JP2000160268A	2000-06-13

Other References: