Synthesis and characterization of copper foams through a powder metallurgy route using a compressible and lubricant space-holder material

Mohit Sharma; O. P. Modi; Punit Kumar

doi:10.1007/s12613-018-1639-y

Volume 25 Issue 8

Aug. 2018

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2018 > 25(8): 902-912

Mohit Sharma, O. P. Modi, and Punit Kumar, Synthesis and characterization of copper foams through a powder metallurgy route using a compressible and lubricant space-holder material, Int. J. Miner. Metall. Mater., 25(2018), No. 8, pp. 902-912. https://doi.org/10.1007/s12613-018-1639-y

Cite this article as:

Mohit Sharma, O. P. Modi, and Punit Kumar, Synthesis and characterization of copper foams through a powder metallurgy route using a compressible and lubricant space-holder material, Int. J. Miner. Metall. Mater., 25(2018), No. 8, pp. 902-912. https://doi.org/10.1007/s12613-018-1639-y

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Research Article

Synthesis and characterization of copper foams through a powder metallurgy route using a compressible and lubricant space-holder material

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Corresponding author:
Mohit Sharma E-mail: mohit826@gmail.com
Received: 20 October 2017; Revised: 29 March 2018; Accepted: 2 April 2018

Abstract

Abstract

In the present work, a compressible and lubricating space-holder material commonly known as “acrawax” was used to process Cu foams with various pore sizes and various porosities. The foams were processed without using binders to avoid contamination of their metal matrices. The lubricant space-holder material was found to facilitate more uniform flow and distribution of metal powder around the surface of the space holder. In addition, the use of acrawax as a space-holder material yielded considerably dense cell walls, which are an essential prerequisite for better material properties. The foams processed with a smaller-sized space holder were found to exhibit better electrical and mechanical properties than those processed with a coarser-sized space holder. The isotropic pore shape, uniform pore distribution throughout the metal matrix, and uniform cell wall thickness were found to enhance the properties pertaining to fine-pore foam samples. The processed foams exhibit properties similar to those of the foams processed through the lost-carbonate sintering process.
- copper foam;
- powder metallurgy;
- space holder;
- acrawax;
- flexural strength;
- sintering;
- electrical resistivity

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References

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