多孔镍毛细芯的制备及其力学性能

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Abstract Porous Ni wicks with high porosity and controllable pore characteristics were fabricated by powder metallurgy method using polymethylmethacrylate (PMMA) as pore-forming agent and carbonyl Ni powder as raw material. The phase composition, micro-structure and mechanical properties of porous Ni were investigated by X-ray diffraction (XRD), scanning electron microscope SEM and mechanical testing instrument. The effects of sintering temperature, the particle size and content of PMMA on pore structures and mechanical properties of porous Ni were investigated. The results show that with the increase of sintering temperature, the porosity and average pore size decrease, mechanical properties increase. With the increase of the particle size and content of PMMA, the porosity and average pore size increase, mechanical properties decrease. The porous Ni wicks with the most excellent comprehensive performance can be fabricated by sintering at the temperature of 800 ℃ with 80% volume fraction addition of PMMA (5 μm). The porosity, average pore size, flexural strength and compressive strength are 71.9%, 2.37 μm, 25.3 MPa and 8.7 MPa, respectively.

Key words： porous Ni sintering temperature pore-forming agent porosity mechanical properties

Received: 06 December 2017 Published: 12 July 2019

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	LI Qiang
	GAN Xueping
	LI Zhiyou
	ZHOU Kechao

Cite this article:

LI Qiang,GAN Xueping,LI Zhiyou, et al. Fabrication and mechanical properties of porous Ni wicks[J]. Materials Science and Engineering of Powder Metallurgy, 2018, 23(4): 361-367.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2018/V23/I4/361

[1] MAYDANIK Y F.Loop heat pipes[J]. Applied Thermal Engineering, 2005, 25(5/6): 635-657.
[2] WANG G, MISHKINIS D, NIKANPOUR D.Capillary heat loop technology: Space applications and recent canadian activities[J]. Applied Thermal Engineering, 2008, 28(4): 284-303.
[3] RIEHL R R, DUTRA T.Development of an experimental loop heat pipe for application in future space missions[J]. Applied Thermal Engineering, 2005, 25(1): 101-112.
[4] PASTUKHOV V G, MAYDANIK Y F.Low-noise cooling system for PC on the base of loop heat pipes[J]. Applied Thermal Engineering, 2006, 27(5): 894-901.
[5] LI J, LIN F, WANG D, et al.A loop-heat-pipe heat sink with parallel condensers for high-power integrated LED chips[J]. Applied Thermal Engineering, 2013, 56(1/2): 18-26.
[6] REN C, WU Q S, HU M B.Heat transfer in loop heat pipe’s wick: Effect of porous structure parameters[J]. Journal of Thermophysics and Heat Transfer, 2007, 21(4): 702-711.
[7] SINGH R, AKBARZADEH A, MOCHIZUKI M.Effect of wick characteristics on the thermal performance of the miniature loop heat pipe[J]. Journal of Heat Transfer, 2009, 131(8): 966-972.
[8] LIU Z C, LIU W, NAKAYAMA A.Flow and heat transfer analysis in porous wick of CPL evaporator based on field synergy principle[J]. Heat and Mass Transfer, 2006, 43(12): 1273-1281.
[9] 李金旺, 邹勇, 程林. 环路热管毛细芯热物性实验研究[J]. 中国电机工程学报, 2010, 30(17): 57-61.
LI Jinwang, ZOU Yong, CHENG Lin.Experimental study on thermo physical properties of capillary wicks for loop heat pipe[J]. Proceedings of the CSEE, 2010, 30(17): 57-61.
[10] XU J, ZOU Y, FAN M, et al.Effect of pore parameters on thermal conductivity of sintered LHP wicks[J]. International Journal of Heat and Mass Transfer, 2012, 55(9/10): 2702-2706.
[11] QU Y, ZHOU K, ZHANG K F, et al.Effects of multiple sintering parameters on the thermal performance of bi-porous nickel wicks in loop heat pipes[J]. International Journal of Heat and Mass Transfer, 2016, 99: 638-646.
[12] 王德志, 王小鹰, 周盼, 等. 烧结工艺对环路热管用镍多孔毛细芯性能的影响[J]. 粉末冶金材料科学与工程, 2014, 19(5): 687-694.
WANG Dezhi, WANG Xiaoying, ZHOU Pan, et al.Effect of sintering process on properties of Ni porous capillary wicks for loop heat pipe[J]. Materials Science and Engineering of Powder Metallurgy, 2014, 19(5): 687-694.
[13] WANG X H, LI Jinshan, RUI H U, et al.Mechanical properties and pore structure deformation behaviour of biomedical porous titanium[J]. Transactions of Nonferrous Metals Society of China, 2015, 25(5): 1543-1550.
[14] 张帅, 李伟, 张忠全, 等. 造孔剂对新型医用多孔Ti-14Mo- 2.1Ta-0.9Nb-7Zr合金组织性能的影响[J]. 材料导报, 2016, 30(2): 42-45.
ZHANG Shuai, LI Wei, ZHANG Zhongquan, et al.Effect of porogen on morphology and mechanical properties of a novel porous Ti-14Mo-2.1Ta-0.9Nb-7Zr alloy for medical purpose[J]. Materials Review, 2016, 30(2): 42-45.
[15] 张俊彦, 张平, 甘秋兰. 泡沫镍力学性能的实验研究[J]. 材料导报, 2004, 18(1): 92-94.
ZHANG Junyan, ZHANG Ping, GAN Qiulan.An experimental study on mechanical properties of nickel foams[J]. Materials Review, 2004, 18(1): 92-94.
[16] 陈劲松. 电解液喷射沉积法制备多孔泡沫镍的力学性能[J]. 有色金属工程, 2013, 3(6): 25-26.
CHEN Jinsong.Research on fabrication and mechanical properties of foam Ni by Jet electrodeposition[J]. Nonferrous Metal Engineering, 2013, 3(6): 25-26.
[17] 黄培云. 粉末冶金原理[M]. 北京: 冶金工业出版社, 2008: 287-297.
HUANG Peiyun.The Principle of Powder Metallurgy[M]. Beijing: Metallurgical Industry Press, 2008: 287-297.