Paper Title:

Precious Metals in High Temperature Applications - The Cause of Damage and its Avoidance

Periodical Materials Science Forum (Volumes 706 - 709)
Main Theme THERMEC 2011
Edited by T. Chandra, M. Ionescu and D. Mantovani
Pages 2434-2439
DOI 10.4028/www.scientific.net/MSF.706-709.2434
Citation Jürgen Merker et al., 2012, Materials Science Forum, 706-709, 2434
Online since January, 2012
Authors Jürgen Merker, David F. Lupton, F. Schölz
Keywords Failure Analysis, Grain Boundary Embrittlement, Platinum, Platinum Alloys, Platinum Corrosion, Platinum Poisons
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Abstract

The broad application of platinum and platinum alloys results from their excellent high temperature mechanical properties as well as their near-perfect oxidation resistance and their outstanding resistance to corrosive attack by metal oxide melts such as fluxing agents. However, a few basic rules must be adhered to if platinum devices are to give satisfactory service. Platinum is susceptible to “platinum poisons” and other impurities. These “poisons”, the reasons for their corrosive effects, and techniques for minimizing or eliminating their influence are outlined.