Oxide-dispersion-strengthened platinum material and method...

B - Operations – Transporting – 32 – B

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B32B 15/01 (2006.01) C22C 5/04 (2006.01) C22C 32/00 (2006.01) C03B 5/43 (2006.01)

Patent

CA 2758719

There is provided a technique for producing an oxide-dispersion--strengthened platinum material excellent in high-temperature creep properties and having high elongation properties. The material of the present invention has a structure comprising concentrated layers in which an additive metal for oxide-dispersion strengthening or a metal oxide thereof is concentrated and platinum layers essentially consisting of platinum in which the additive metal or the metal oxide thereof is dilute, the concentrated layers and the platinum layers being alternately laminated in six pairs or more. In addition, the outermost surface of the material is preferably the platinum layer or the concentrated layer.

La présente invention concerne un procédé de fabrication d'un matériau à base de platine renforcé par dispersion d'oxydes présentant d'excellentes propriétés de fluage à haute température et d'excellentes propriétés d'allongement. Ledit matériau est caractérisé en ce qu'il possède une structure comportant au moins six paires des couches suivantes, stratifiées en alternance : des couches concentrées dans lesquelles un métal, ou un oxyde métallique de celui-ci, additionné pour le renfort par dispersion d'oxydes, est concentré; et des couches de platine qui sont principalement constituées de platine et présentent une faible concentration dudit métal ou oxyde métallique additionné. La surface la plus à l'extérieur du matériau est de préférence une couche de platine ou une couche concentrée.

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