Thermophysical properties of copper composites reinforced with negative CTE fillers

E. Neubauer, I. Smid, G. Requena, H. P. Degischer, P. Angerer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Copper reinforced with low Coefficient of Thermal Expansion (CTE) fillers such as carbon fibers or SiC particles have been investigated for several years. Such a material combines a high thermal conductivity with a low CTE. This work reports on first results which have been achieved by combining a copper matrix with a filler material exhibiting a negative CTE by using rapid sintering with the goal to reduce the resulting overall CTE but keeping a high thermal conductivity at a relatively low amount of filler. The used filler material is characterized by a negative CTE value in the range of -8 to -10 ppm/K. By using a powder metallurgical approach whereby mixing Cu with the negative filler a composite with tailorable CTE can be prepared. The produced composites have been investigated with respect to their thermal expansion behavior. A promising material with a CTE in the range of 8 to 12 ppm/K at room temperature and still acceptable thermal conductivity has been obtained.

Original languageEnglish (US)
Title of host publicationAdvances in Powder Metallurgy and Particulate Materials - 2006, Proceedings of the 2006 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2006
Pages937-943
Number of pages7
StatePublished - 2006
Event2006 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2006 - San Diego, CA, United States
Duration: Jun 18 2006Jun 21 2006

Publication series

NameAdvances in Powder Metallurgy and Particulate Materials - 2006, Proceedings of the 2006 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2006

Other

Other2006 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2006
Country/TerritoryUnited States
CitySan Diego, CA
Period6/18/066/21/06

All Science Journal Classification (ASJC) codes

  • Metals and Alloys
  • Surfaces and Interfaces

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