Patent · US Active

Doped iridium with improved high-temperature properties

US7815849B2 · kind B2 · utility

8Cited by

2References

9Claims

0Family size

Assignee

W. C. Heraeus GmbH · DE

Inventors

Michael Koch · Bruchköbel, DE
David Francis Lupton · Gelnhausen, DE
Harald Manhardt · Bruchköbel, DE
Tobias Mueller · Gelnhausen, DE
Reinhold Weiland · Neuberg, DE
Bernd Fischer · Bräunlingen, DE

Key dates

Filing date	Jul 7, 2006
Grant date	Oct 19, 2010
Priority date	—
Expiry date	Aug 15, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S117/90
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An iridium alloy is produced having at least 85% by weight iridium, at least 0.005% by weight molybdenum, 0.001 to 0.6% by weight hafnium and, optionally, rhenium, the sum of molybdenum and hafnium being between 0.002 and 1.2% by weight. The iridium alloy is produced in a process, in which an IrMo and an IrHf master alloy, respectively, are created in an electric arc and immersed into an iridium melt, optionally together with Re.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.