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Metals 2015, 5(4), 1821-1828; doi:10.3390/met5041821

Complex-Shaped Porous Cu Bodies Fabricated by Freeze-Casting and Vacuum Sintering

1
School of Material Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China
2
Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Hugo F. Lopez
Received: 22 August 2015 / Revised: 22 September 2015 / Accepted: 29 September 2015 / Published: 8 October 2015
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Abstract

Porous Cu bodies with complex shapes were fabricated by freeze-casting and vacuum sintering water-based CuO slurry. The sintered bodies showed no noticeable macroscopic defects and good shape tolerance. The interconnected pore tunnels were observed by electronic microscopy. The pore size became smaller and the porosity and volume shrinkage of sintered porous bodies decreased with the increase of solid content in the slurry. XRD results showed the CuO was fully decomposed by vacuum sintering into Cu without any second phases. This new fabrication method may be especially economical when small quantities of porous parts are required. View Full-Text
Keywords: porous materials; microstructure; copper; freeze-casting; vacuum decomposition sintering porous materials; microstructure; copper; freeze-casting; vacuum decomposition sintering
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ran, H.; Feng, P.; Liu, Z.; Wang, X.; Niu, J.; Zhang, H. Complex-Shaped Porous Cu Bodies Fabricated by Freeze-Casting and Vacuum Sintering. Metals 2015, 5, 1821-1828.

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