THERMAL STABILITY OF Cu-Al sub(2)O sub(3) AND CuCr MATERIALS

The aim of this work was the comparison of the thermal stability of dispersion strengthened (DS) Cu - 5 vol. % Al sub(2)O sub(3) system with the CuCr electrode material. The DS material is characterized by high hardness, high strength and excellent thermal stability of the structure due to the highl...

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Bibliographic Details
Published in:Powder Metallurgy Progress 2014-01, Vol.14 (2), p.108-112
Main Authors: Orolinova, M, Durisin, J, Durisinova, K, Dankova, Z, Durisin, M, Szabo, J
Format: Article
Language:English
Subjects:
Aluminum oxide
Copper
Dispersions
Hardness
High strength
Powder metallurgy
Precipitates
Precipitation
Thermal stability
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Summary:The aim of this work was the comparison of the thermal stability of dispersion strengthened (DS) Cu - 5 vol. % Al sub(2)O sub(3) system with the CuCr electrode material. The DS material is characterized by high hardness, high strength and excellent thermal stability of the structure due to the highly stable gamma Al sub(2)O sub(3) dispersoid. The CuCr material has comparable hardness and strength, however the thermal stability is limited by the thermal stability of the precipitate.
ISSN:1335-8987