粉末冶金多孔钨的研究现状与发展  

作　　者：王杰 董宏月 徐海峰 樊峰嵩 秦运璞 吴昊阳 秦明礼[1,2,3] 曲选辉 WANG Jie;DONG Hongyue;XU Haifeng;FAN Fengsong;QIN Yunpu;WU Haoyang;QIN Mingli;QU Xuanhui(Institute for advanced materials and Technology,University of Science and Technology Beijing,Beijing 100083,China;Beijing Advanced Innovation Center for Materials Genome Engineering,University of Science and Technology Beijing,Beijing 100083,China;Institute of Materials Intelligent Technology,Liaoning Academy of Materials,Shenyang 110004,China)

机构地区：[1]北京科技大学新材料技术研究院,北京100083 [2]北京科技大学北京材料基因工程高精尖创新中心,北京100083 [3]辽宁材料实验室材料智能技术研究所,沈阳110004

出　　处：《粉末冶金技术》2025年第2期239-247,共9页Powder Metallurgy Technology

基　　金：国家自然科学基金资助项目(52131307,52130407)。

摘　　要：多孔钨是由钨骨架及其内部的高比例孔隙构成,兼具了难熔金属钨和多孔材料的优良特性,因具有优异的耐高温、耐腐蚀、高比表面以及高渗透性等性能而被广泛应用于航空、电子、高温等领域。多孔钨在金属钨本征特性的基础上利用了孔隙的连通、填充、储存和过滤等功能,因此,得到稳定可控的孔隙是制备高性能多孔钨以及进一步拓宽其应用的关键。本文以制备过程中孔隙特性变化为主线,首先阐述了多孔钨孔隙特性在其主要应用中的关键作用,然后从粉末特性、成形方法、烧结工艺等方面对多孔钨孔隙特性的影响进行了总结,最后对多孔钨的研究方向和发展趋势提出了展望。Porous tungsten is composed of tungsten skeleton and the high proportion of internal pores,which combines the excellent characteristics of refractory metal tungsten and porous materials.It is widely used in aviation,electronics,high temperature and other fields due to the excellent high temperature resistance,corrosion resistance,high specific surface area,and high permeability.The main application of porous tungsten is to utilize the functions of pore connectivity,filling,storage,and filtration on the basis of the intrinsic metal tungsten characteristics.Therefore,the key to prepare the high-performance porous tungsten and broaden the application in the further lies on obtaining the stable and controllable pores.Control of the porosity characteristics during the preparation process was focused in this paper.Firstly,the crucial role of porosity characteristics in the main applications of porous tungsten was elaborated;then,the effects of powder characteristics,forming methods,and sintering system on the pore characteristics of porous tungsten were summarized;finally,the research directions and development trend of porous tungsten were pointed out.

关 键 词：多孔钨 孔隙特性 粉末特性 成形方法 烧结制度 

分 类 号：TG146.4[一般工业技术—材料科学与工程] TF124[金属学及工艺—金属材料]