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Materials for temperatures above 1500°C in oxidizing atmospheres. Part I: Basic considerations on materials selection
Author(s) -
Bundschuh K.,
Schütze M.
Publication year - 2001
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/1521-4176(200103)52:3<204::aid-maco204>3.0.co;2-j
Subject(s) - oxidizing agent , materials science , eutectic system , creep , metallurgy , chemistry , alloy , organic chemistry
In the first part of this paper the results of a literature review are presented. Here we provide an overview of the materials that are suitable for long term service in oxidizing atmospheres at temperatures of 1500°C and higher. Criteria are a sufficient stability against the surrounding environment, low vapor pressure of the material or the reaction product formed and sufficient creep resistance. A further aspect is that reactions between contacting materials of different compositions should not lead to the formation of low melting eutectics at the contact areas. The second part reports about results from thermogravimetric measurements on the oxidation resistance of several potential materials. The third part deals with the experimental investigations concerning the “contact‐corrosion” of selected high‐temperature resistant materials (Al 2 O 3 , ZrO 2 , CeO 2 , La 2 O 3 , Y 2 O 3 , HfO 2 , and the Spinel (MgO · Al 2 O 3 )) in direct contact with a SiO 2 ‐scale forming material (MoSi 2 ) at 1600°C in air, since most of the potential materials for such high temperatures are silica formers. Parts II and III will appear in the next 2 issues of this journal.