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

Metals

Huashen Ran²  Peizhong Feng²  Zhangsheng Liu²  Xiaohong Wang²  Jinan Niu²  Haifei Zhang¹ 

[1] Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK; E-Mail:;School of Material Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China; E-Mails:

关键词: porous materials;    microstructure;    copper;    freeze-casting;    vacuum decomposition sintering;   

DOI  :  10.3390/met5041821

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.