Auf Edelmetallbasis amorphe Legierung mit plastischer Verformbarkeit die als Baumaterial für Elektrolyseanoden anwendbar ist

Alliage amorphe à base de métaux précieux, déformable plastiquement et utilisable comme matériau pour anodes d'électrolyse

Precious metal-based amorphous alloy having plastic processability and useful as bulk material for electrolysis anodes

Abstract

The object of the invention is to provide an excellent electrode having an excellent corrosion resistance and long service life even in a severe oxidization environment such as in NaCl solutions for anode electrolysis in which chlorine gas or the like is produced at a high potential from the alloy surface. The electrode of the invention is provided using a precious metal-based amorphous alloy which has a good plasticity processibility and is applicable to a large-sized component. The object is implemented by provision of an electrode material for anode electrolysis which utilizes a precious metal-based amorphous alloy which satisfies a general formula of compositions expressed by NM100-a-b-cNiaCubPc, wherein NM comprises one or two precious metal elements selected from Pd and Pt; a, b and c being atomic percent, satisfy that 30 ≦ a+b ≦ 45,3 ≦ b/a ≦ 7, and 18 ≦ c ≦ 25, respectively; Pt is contained from 10 to 30 atom percent (at.%); and wherein a temperature width ΔTx in the supercooled liquid region (ΔTx=Tx - Tg) has a width of 70 K or more.

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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    EP-0163410-A1December 04, 1985The Standard Oil CompanyElectrolysis of halide-containing solutions with platinum based amorphous metal alloy anodes

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Cited By (4)

    Publication numberPublication dateAssigneeTitle
    EP-1308527-A1May 07, 2003Tanaka Kikinzoku Kogyo K.K.Alliages amorphe base de m tal noble
    EP-1308527-A4August 25, 2004Tanaka Precious Metal IndAlliages amorphe base de m tal noble
    US-6749698-B2June 15, 2004Tanaka Kikinzoku Kogyo K.K.Precious metal based amorphous alloys
    WO-0212576-A1February 14, 2002Tanaka Kikinzoku Kogyo K.K.Alliages amorphe à base de métal noble