Heat Dissipation Performance of Porous Copper with Elongated Cylindrical Pores

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	Heat Dissipation Performance of Porous Copper with Elongated Cylindrical Pores
	H. Du; D. Z. Lu; J. Z. Qi; Y. F. Shen; L. S. Yin; Y. Wang; Z. G. Zheng; T. Y. Xiong
	2014
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	30 期号:9 页码:934-938
摘要	The purpose of this paper is to investigate heat dissipation performance of porous copper with long cylindrical pores fabricated by a unidirectional solidification method. Three samples with porosity of 29.87%, 34.47% and 50.98% were chosen and cut into size of 60 mm (length) x 26 mm (width) x 2 mm (thickness) along the vertical direction of pore axis. Their heat dissipation performance was evaluated by a nonsteady method in air and compared to those of not only bulk copper but also bored coppers with porosity of 30.61% and 32.20%. It is found that the porous copper dissipated heat faster by a forced air convection than that by natural convection from 80 degrees C to room temperature and both porosity and pore size play an important role in the performance for the porous copper. Furthermore, the heat dissipation rate is higher when the forced air was circulated along the specimens than that perpendicular to the specimens for the porous copper. It is revealed that porous copper with bigger porosity and a proper pore size possesses a higher heat dissipation rate. It is concluded that the porous copper with elongated cylindrical pores has larger heat dissipation performance than both the bulk copper and the bored copper, which is attributed to its higher specific surface area. Application of the porous copper for heat dissipation is promising.
部门归属	[du, hao ; lu, dongzhu ; qi, jianzhong ; shen, yanfang ; zheng, zhongguang ; xiong, tianying] chinese acad sci, inst met res, div surface engn mat, shenyang 110016, peoples r china. [yin, lisong] wuyi univ, testing & anal ctr, jiangmen 529020, peoples r china. [wang, yuan] sichuan univ, inst nucl sci & technol, key lab radiat phys & technol, minist educ, chengdu 610064, peoples r china. ; du, h (reprint author), chinese acad sci, inst met res, div surface engn mat, shenyang 110016, peoples r china. ; hdu@imr.ac.cn
关键词	Porous Copper Heat Dissipation Porosity Pore Size Metal Foams Sink Fabrication
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73217
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Du,D. Z. Lu,J. Z. Qi,et al. Heat Dissipation Performance of Porous Copper with Elongated Cylindrical Pores[J]. Journal of Materials Science & Technology,2014,30(9):934-938.
APA	H. Du.,D. Z. Lu.,J. Z. Qi.,Y. F. Shen.,L. S. Yin.,...&T. Y. Xiong.(2014).Heat Dissipation Performance of Porous Copper with Elongated Cylindrical Pores.Journal of Materials Science & Technology,30(9),934-938.
MLA	H. Du,et al."Heat Dissipation Performance of Porous Copper with Elongated Cylindrical Pores".Journal of Materials Science & Technology 30.9(2014):934-938.