高孔隙率微孔镍的制备及性能  

Preparation and Properties of Microporous Nickel with High Porosity

作　　者：王昊 杨坤[1] 王建忠[1] 石英[1] 冯培忠[2] 黄愿平[1] 荆鹏[1] Farid Akhtar Wang Hao;Yang Kun;Wang Jianzhong;Shi Ying;Feng Peizhong;Huang Yuanping;Jing Peng;Akhtar Farid(State Key Laboratory of Porous Metal Materials,Northwest Institute for Nonferrous Metal Research,Xian 710016,China;School of Materials Science and Physics,University of Mining and Technology,Xuzhou 221116,China;Division of Materials Science,LuleåUniversity of Technology,Luleå97187,Sweden)

机构地区：[1]西北有色金属研究院金属多孔材料国家重点实验室,陕西西安710016 [2]中国矿业大学材料与物理学院,江苏徐州221116 [3]吕勒奥理工大学材料科学部,瑞典吕勒奥97187

出　　处：《稀有金属材料与工程》2023年第3期876-882,共7页Rare Metal Materials and Engineering

基　　金：Science and Technology Department of Shaanxi Province(2021KJXX-75);National Natural Science Foundation of China(52020105011)。

摘　　要：提出了一种烧结后闭孔加工再开孔的策略,通过粉末冶金方法和后续加工处理制备出了高孔隙率的微孔镍材料。采用粒径为1μm的羰基镍粉为原料,研究了烧结工艺参数对多孔镍的孔隙性能和力学性能的影响。结果表明,在400℃烧结温度下,压汞法测得微孔镍的孔隙率为53.7%,平均孔径为612.25 nm。经加工处理后的压汞孔隙率为54.0%,平均孔径为511.37 nm,加工后孔隙结构仍符合应用要求,为多孔镍及其他多孔金属材料的制备开辟了一条新的途径。The strategy of sintered closed-hole followed by reopening was proposed to prepare the microporous nickel material with high porosity through the powder metallurgy and subsequential treatments.The carbonyl nickel powder with particle size of 1μm was used as raw material,and the effects of sintering process parameters on the pore properties and mechanical properties of microporous nickel were studied.Results show that the porosity measured by mercury injection method of microporous nickel is 53.7%,and the average pore diameter is 612.25 nm at the sintering temperature of 400℃.After machining,the porosity measured by mercury injection method is 54.0%,and the average pore diameter is 511.37 nm,which still satisfies the requirements of engineering application.The strategy provides providing a new approach for the preparation of microporous nickel and other porous metal materials.

关 键 词：高孔隙率 微孔结构 多孔镍 制备工艺 加工性能 

分 类 号：TG146.15[一般工业技术—材料科学与工程]