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Preparation and thermal properties of zirconium tungstate/copper composites

Yan, X. and Cheng, X. and Xu, G. and Wang, C. and Sun, S. and Riedel, R. (2008):
Preparation and thermal properties of zirconium tungstate/copper composites.
In: Materialwissenschaft und Werkstofftechnik, 39 (9), Wiley, pp. 649-653, ISSN 09335137,
[Online-Edition: http://dx.doi.org/10.1002/mawe.200800322],
[Article]

Abstract

ZrW2O8/Cu composites were prepared by the powder metallurgy method. Electroless plating was used to deposit copper on ZrW2O8 powder before sintering. The thermal expansion and thermal conductivity of composites were measured in the temperature range from 25 oC to 200 oC and compared with those predicted from various theoretical models. The results show that the coefficient of thermal expansion of ZrW2O8/ Cu composites with a different volume fraction of ZrW2O8 is greater than the theoretically calculated value. The thermal conductivities of ZrW2O8/ Cu composites increase with a higher copper content and decrease upon elevated temperature. The thermal conductivity of composites with a different volume fraction of ZrW2O8 is lower than the theoretically calculated value.

Item Type: Article
Erschienen: 2008
Creators: Yan, X. and Cheng, X. and Xu, G. and Wang, C. and Sun, S. and Riedel, R.
Title: Preparation and thermal properties of zirconium tungstate/copper composites
Language: English
Abstract:

ZrW2O8/Cu composites were prepared by the powder metallurgy method. Electroless plating was used to deposit copper on ZrW2O8 powder before sintering. The thermal expansion and thermal conductivity of composites were measured in the temperature range from 25 oC to 200 oC and compared with those predicted from various theoretical models. The results show that the coefficient of thermal expansion of ZrW2O8/ Cu composites with a different volume fraction of ZrW2O8 is greater than the theoretically calculated value. The thermal conductivities of ZrW2O8/ Cu composites increase with a higher copper content and decrease upon elevated temperature. The thermal conductivity of composites with a different volume fraction of ZrW2O8 is lower than the theoretically calculated value.

Journal or Publication Title: Materialwissenschaft und Werkstofftechnik
Volume: 39
Number: 9
Publisher: Wiley
Uncontrolled Keywords: Metal-matrix composites; Thermal properties; Powder process
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 16 Apr 2012 08:52
Official URL: http://dx.doi.org/10.1002/mawe.200800322
Identification Number: doi:10.1002/mawe.200800322
Funders: The authors would like to thank the National Natural Science Foundation of China (No. 50442023, No. 50772044), the Natural Science Foundation of the Jiangsu High Education Institution of China (06KJB430012) and Talent Science Foundation of Jiangsu, University (06JDG067) for financial support.
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