石墨悬浮液的热导率与黏度分析

doi:10.3969/j.issn.0438-1157.2014.z1.033

化工学报 ›› 2014, Vol. 65 ›› Issue (S1): 206-210.DOI: 10.3969/j.issn.0438-1157.2014.z1.033

石墨悬浮液的热导率与黏度分析

马雷^1,2, Wang Jianjian², Marconnet Amy^2,3, 刘伟¹, Chen Gang²

1. 华中科技大学能源与动力工程学院, 湖北武汉, 430074;
2. School of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States;
3. School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, United States

收稿日期:2014-02-10 修回日期:2014-02-15 出版日期:2014-05-30 发布日期:2014-05-30
通讯作者: Chen Gang
基金资助:
USAFOSRFA9550-11-1-0174（J.J.W.andG.C.）；国家重点基础研究发展计划项目（2013CB228302）；国家自然科学基金项目（51036003）；教育部博士点基金项目（20100142110037）。

Analysis of thermal conductivity and viscosity of graphite suspensions

MA Lei^1,2, WANG Jianjian², MARCONNET Amy^2,3, LIU Wei¹, CHEN Gang²

1. School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China;
2. School of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States;
3. School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, United States

Received:2014-02-10 Revised:2014-02-15 Online:2014-05-30 Published:2014-05-30
Supported by:
supported by US AFOSR FA9550-11-1-0174 (J.J.W. and G.C.), the National Basic Research Program of China (2013CB228302), the National Natural Science Foundation of China (51036003) and the Doctoral Foundation of Education Ministry of China (20100142110037).

摘要/Abstract

摘要： 通过实验测量，对石墨悬浮液进行热导率和黏度系数的研究。采用不同的超声时间，从而获得不同大小颗粒的石墨悬浮液。在不同的超声时间下得到了石墨悬浮液的热导率随体积分数的变化规律，并对其热流逾渗现象进行了分析。同时，对于室温下的石墨悬浮液进行了黏度系数的测量，可以得到石墨悬浮液的逾渗点的导热性质和黏度性质的对比，从而得到了两者是截然相反的结论。

关键词: 热导率, 黏度系数, 悬浮液, 逾渗

Abstract: Thermal conductivity and viscosity of graphite suspensions were experimentally studied by transient hotwire method and ARG2 method, respectively. By choosing different sonication time, thermal conductivity of graphite suspension at different volume fractions were obtained, as well as a thermal percolation behavior was observed. The viscosity shows opposite trend compared with thermal conductivity near percolation regime, which increases much faster before percolation than after percolation.

Key words: thermal conductivity, dynamic viscosity, suspension, percolation

中图分类号:

TK01

马雷, Wang Jianjian, Marconnet Amy, 刘伟, Chen Gang. 石墨悬浮液的热导率与黏度分析[J]. 化工学报, 2014, 65(S1): 206-210.

MA Lei, WANG Jianjian, MARCONNET Amy, LIU Wei, CHEN Gang. Analysis of thermal conductivity and viscosity of graphite suspensions[J]. CIESC Journal, 2014, 65(S1): 206-210.

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石墨悬浮液的热导率与黏度分析

Analysis of thermal conductivity and viscosity of graphite suspensions

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