蒸发冷凝法制备粉体纳米材料.pdfVIP

32 2 机 械 工 程 材 料 V ol . 32 N o. 2 2008 2 M at erials or M echanical Eng ineering F eb. 2008 , , , ( 中国矿业大学机电工程学院, 江苏徐州221008) : 蒸发冷凝( IG C) 法是纳米粉体制备的主要物 方法之一, 可成功应用于金属合金金 属氧化物等多种类型纳米粉体的制备; 制备装置容易实现, 可采用多种加热方式, 如电阻加热法等 离子喷射加热法感应加热法电子束加热法激光加热法等; 目前关于制备工艺的研究主要集中在 对影响纳米粉体粒径的工艺参数的研究和提高纳米粉体产率的研究上, 而粉体粒径的影响因素多 产率难以明显提高也 一直是制约该法发展的瓶颈; 对采用该法制备的纳米粉体的性能研究表明, 蒸 发冷凝法制备的纳米粉体具有良好的力学性能磁性能和光学特性 : 蒸发冷凝法; 纳米粉体; 制备工艺 : T Q029 : A : 2008) Progress in Research on Preparation of Nanopowder by Evaporationcondensation Method BAO Jiusheng, YIN Yan, IU Tonggang, YANG Zhiyi ( China Universit y o M ining T echnolo gy, X uzhou 22100 8, China) Abstract: Evapor ationcondensatio n method has been a classical method to prepare nanopow der s or a long time, and it is still a main physical method to pr epar e nanopow der s today. T he catego ries o nanopo w ders o met al, alloy and met allic o x ide w hich can be pr epar ed by evapor atio ncondensatio n method are reco mmended . Heating modes and their characterist ics are intr oduced , including ohmicresistance heat ing, plasma ar c heat ing , induction heating, electro n beam heating, laser heating , and so on . T he present situation o r esear ch o n prepa ring technolog y and pr operty o nanopow der s prepared by the metho d is summarized . T he pr esent research o n prepa ring pr ocess is mainly ocu sed o n techno log ical parameters w hich in luence nanopow ders diameter , and approaches to raise nanopow ders y ield rate. T he nanopow der s pr epar ed by evapor atio ncondensatio n method have superior mechanical, magnetic an