Heat-resistant platinum material

US5730931A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Manfred Poniatowski · Bruchköbel, DE
• Ernst Drost · Alzenau, DE
• Stefan Zeuner · Dresden, DE

Key dates

• Filing date: Aug 16, 1996
• Grant date: Mar 24, 1998
• Expiry date: Aug 16, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C5/04
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A heat-resistant platinum material with more than 99.5% by weight platinum, with high long-term creep resistance and low grain growth at high temperature contains 0.1 to 0.35% by weight zirconium and/or zirconium oxide and 0.002 to 0.02% by weight boron and/or boron oxide.