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High temperature oxidation of hot isostatically pressed nitride materials

✍ Scribed by M. Desmaison-Brut

Publisher
John Wiley and Sons
Year
1990
Tongue
German
Weight
81 KB
Volume
41
Category
Article
ISSN
0947-5117

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✦ Synopsis

Hot isostatic pressing has been applied for the consolidation of four commercially available nitride powders, i.e. titanium, tantalum, zirconium and hafnium nitrides and the reactivity in oxygen of cubic specimens is compared.

Two types of behaviour have been recorded: 0 the oxidation of the titanium nitride material leads to the formation of an external compact scale; 0 in the three other cases (ZrN,TaN, HfN), a porous oxide is formed and, simultaneously, the cube edges open, leading to the formation of a "maltese cross".

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