Permeability, Thermal Conductivity and the Pore Characters of Sintered Porous Metal Materials

Abstract

Abstract: In order to characterize the sintered porous metal materials, porosity was tested. Surface porosity, average pore size and pore size distribution were obtained through image processing and analysis based on scanning electron microscope(SEM) images of nature fracture surfaces. Permeability and air permeability were measured by experimental apparatus based on Darcy’s law, and the effects of original power grain size, porosity, thickness, low temperature condition, average pore size and pore size distribution on permeability were also discussed. Effective thermal conductivities were measured by a hot disk thermal constant analyzer and compared with predicted results from empirical equations. The results demonstrate that volume average pore size and pore size distribution can effectively reflect the change of air permeability, and thickness has an important influence on porosity and permeability. A stronger wall effect is presented in the case of a thinner thickness and a bigger original power grain size. Low temperature condition has no influence on permeability.

Key words: porous metal material, sintering, permeability, porosity, thermal conductivity

REN Xiao-Jun-1, ZHANG Peng-1, WANG Xiao-Jun-2, PAN Yan-Pin-2. Permeability, Thermal Conductivity and the Pore Characters of Sintered Porous Metal Materials[J]. Journal of Shanghai Jiaotong University, 2013, 47(03): 352-357.

References

［1］汤慧萍，谈萍，奚正平，等.烧结金属多孔材料研究进展［J］. 稀有金属材料与工程, 2006,35(增2):429431.
TANG Huiping, TAN Ping, XI Zhengping, et al. Research progress of sintered porous metal［J］. Rare Metal Materials
and Engineering, 2006, 35(sup 2):429431.
［2］孔佩敏，张健，孙旭东，等.金属多孔材料孔结构的表征技术［J］.热加工工艺，2009,38（12）：5054.
KONG Peimin, ZHANG Jian, SUN Xudong, et al. Characterization technology of pore structure of metallic porous
materials ［J］. Hot Working Technology, 2009, 38(12):5054.
［3］奚正平, 汤慧萍, 朱纪磊，等. 金属多孔材料在能源与环保中的应用［J］. 稀有金属材料与工程, 2006,35(增2):413417.
XI Zhengping, TANG Huiping, ZHU Jilei , et al. Application of porous metal in fields of energy source and
environment protection［J］. Rare Metal Materials and Engineering, 2006, 35(sup 2):413417.
［4］汤慧萍，奚正平，廖际常，等.金属多孔材料表面燃烧器的发展现状［J］. 稀有金属材料与工程, 2006,35(增2):423427.
TANG Huiping, XI Zhengping, LIAO Jichang, et al. Progress of metal porous media surface burner［J］. Rare Metal
Materials and Engineering, 2006, 35(sup 2):423427.
［5］汪强兵，汤慧萍，奚正平，等.煤气化技术用金属多孔材料研究进展［J］. 稀有金属材料与工程, 2006,35(sup 2):448451.
WANG Qiangbing, TANG Huiping, XI Zhengping, et al. The study progress of the metal porous material using in the
gasification technology［J］. Rare Metal Materials and Engineering, 2006, 35(sup 2): 448451.
［6］王小军, 任小军, 张鹏, 等. 超流氦相分离器的研究综述［J］. 低温与超导, 2011,39(7):612.
WANG Xiaojun, REN Xiaojun, ZHANG Peng, et al. A review of the porous plug phase separator for superfluid helium［J］.
Cryogenics and Superconductivity, 2011, 39(7): 612.
［7］He Y. Rapid thermal conductivity measurement with a hot disk sensor. Part 1. Theoretical considerations［J］.
Thermochimi Acta, 2005, 436:122129.
［8］Yuan S W K. The nonnewtonian heat and mass transport of helium Ⅱin porous media used for vaporliquid phase
separator［D］. Los Angeles: University of California, 1985.
［9］Montes J M, Rodriguez J A, Herrera E J. Thermal and electric conductivities of sintered power compacts ［J］. Power
Metallurgy, 2003, 46(3): 251256.
［10］Bhattacharya A, Calmidi V V, Mahajan R L. Thermophysical properties of high porosity metal foams［J］.
International Journal of Heat and Mass Transfer, 2002, 45:10171031.
［11］Fricke H. A mathematical treatment of the electrical conductivity and capacity of disperse systems［J］. Physical
Review, 1924, 24:575587.
［12］Koh J C, Fortini A. Thermal conductivity and electrical resistivity of porous materials［R］. NASA Report, NO NAS3
12012, CR120854, USA,1971.

[1]	Liu Peijin, Ding Haojian, Yan Dongyang, Sun Haofeng, Huang Tao, Li Jie. Multi-Objective Approach for Optimizing Production Parameters of Low-Permeability Oil Well to Enhance Energy Efficiency [J]. J Shanghai Jiaotong Univ Sci, 2026, 31(2): 486-498.
[2]	Xu Qingyu, Hai Jizhe, Shan Chunlong, Li Haijie. Mechanical and Permeability Properties of Radial-Gradient Bone Scaffolds Developed by Voronoi Tessellation for Bone Tissue Engineering [J]. J Shanghai Jiaotong Univ Sci, 2025, 30(3): 433-445.
[3]	XING Chuanheng1, SI Yuanyuan2. Application and Effect of Well Testing Analysis Model in Water Injection of Fractured Well Group in Low-Permeability Oil Field [J]. Ocean Engineering Equipment and Technology, 2025, 12(2): 69-73.
[4]	JIANG Haoqiang (蒋浩强), CHEN Shanben^* (陈善本), XU Jingyuan (许靖远). On-Line Detection of Porosity in Gas Tungsten Arc Welding of Aluminum Alloy Based on Spectrum Features [J]. J Shanghai Jiaotong Univ Sci, 2024, 29(2): 339-348.
[5]	LI Yang, LIU Zhi, ZAI Xuerong, HUANG Xiang, CHEN Yan, CAO Yali, ZHANG Huaijing, FU Yubin. Effect of Sediment Porosity on Electrochemical Performance of Marine Sediment Microbial Fuel Cells and Analysis of Organic Matter Diffusion [J]. Journal of Shanghai Jiao Tong University, 2024, 58(10): 1567-1574.
[6]	QIU Kang. Drawdown Pressure Model of Low Porosity and Permeability Matrix Sandstone Gas Reservoir Test with Multi-Factor Restrictions [J]. Journal of Shanghai Jiao Tong University, 2023, 57(S1): 30-36.
[7]	LIU Zhenghong, YU Yali, CHENG Weilun, LI Muzhi, YANG Lixia, ZHAO Xiaofeng, PENG Di, MOU Rende, LIU Delin. Evaluation of Thermal Insulation Performance of EB-PVD YSZ Thermal Barrier Coatings by Phosphorescence Lifetime Online Measurement [J]. Journal of Shanghai Jiao Tong University, 2023, 57(9): 1186-1195.
[8]	LIAO Yifeng, LI Weipeng. Effect of Binder and Compression on Pore Structure and Gas Permeability of Gas Diffusion Layer in PEMFC [J]. Journal of Shanghai Jiao Tong University, 2023, 57(7): 899-909.
[9]	SUN Xucheng, ZHAO Xiaofeng, YANG Fan. Thermal Conductivity of Bulk Attapulgite Prepared by Pressureless Sintering [J]. Journal of Shanghai Jiao Tong University, 2023, 57(2): 194-200.
[10]	HU Anfeng, GONG Zhaoqi, XIAO Zhirong, CHEN Yuan. Two Dimensional Nonlinear Consolidation Analysis of Saturated Soft Soil Around Tunnel [J]. Journal of Shanghai Jiao Tong University, 2023, 57(12): 1631-1638.
[11]	LIU Shihang, LOU Xiaofan, TANG Guoqiang, WANG Bin. Effect of Porosity on Local Scour Around Circular Array of Cylinders in Steady Currents [J]. Journal of Shanghai Jiao Tong University, 2022, 56(5): 664-674.
[12]	LI Wenchen, CAI Yifan, YAN Taisen, LI Tingxian, WANG Ruzhu. Preparation and Thermal Storage Properties of Sodium Acetate Trihydrate-Expanded Graphite as Phase Change Composite [J]. Journal of Shanghai Jiaotong University, 2020, 54(10): 1015-1023.
[13]	HE Yusong,BAI Minli,HAO Liang. Pore Structure and Pore Scale Simulation of Permeability of Micro-Porous Layer in PEM Fuel Cell [J]. Journal of Shanghai Jiaotong University, 2020, 54(10): 1053-1064.
[14]	JIANG Zhao (姜朝), HUA Xueming* (华学明), HUANG Lijin (黄立进),WU Dongsheng (吴东升), LI Fang (李芳), CAI Yan (蔡艳). High Efficiency and Quality of Multi-Pass Tandem Gas Metal Arc Welding for Thick Al 5083 Alloy Plates [J]. Journal of Shanghai Jiao Tong University (Science), 2019, 24(2): 148-157.
[15]	RONG Fu, LIAO Chencong, TONG Dagui, ZHOU Xianglian. Analysis of Wave-Induced Liquefaction of Seabed with Variation in Permeability Anisotropy [J]. Journal of Shanghai Jiao Tong University, 2019, 53(1): 93-99.