【作者】 黄伯云； 范景莲；

【Author】 HUANG Bai-yun,FAN Jing-lian (State Key Laboratory for Powder Metallurgy,Changsha 410083,Hunan,China)

【机构】 中南大学粉末冶金国家重点实验室；

【摘要】 采用纳米粉末制备的纳米钨合金块体材料具有非常优越的潜在物理力学性能,用作高性能结构件和高性能电子、微电子等功能材料等方面都将具有很大的潜在优势,可以更好地满足高性能新型材料的要求。本文综述了近几年国内外纳米难熔钨合金材料的研究状况,详细地介绍了数种纳米钨合金粉末制备的制备技术和在纳米钨合金材料制备中所取得的成绩,分析了纳米钨合金在粉末制备和烧结中存在的问题。针对纳米粉末烧结时的晶粒长大问题,介绍了可能的几种纳米块体材料的烧结技术和今后纳米难熔钨合金材料的研究发展方向,并指出了今后该种新型材料的应用发展前景。更多还原

【Abstract】 The nano tungsten alloy materials made from their nano-structured powder have potential excellent physical and mechanical properties, and can be used as high mechanical structured parts or electronics, micro-electronics parts with high properties. This paper reviewed the research status about nano-tungsten alloy in recent years, several kinds of methods for preparing nano-powder and the achievement in studying the nano-tungsten materials were introduced in detail. The existing problems in powder preparation and sintering which preventing the development were also discussed . Aimed at the grain growth of the nano-powder during sintering, several kinds of potential enhanced sintering technology about nano-powder were presented, and the forthcoming development orientation and prospects were also pointed out.更多还原