铜超细粉体的液压法分级研究  

Hydraulic Pressure Classification of Superfine Copper Powders

作　　者：陶蓉[1] 曹燕[2] 庄严[3] 周全法[3] 

机构地区：[1]江苏工业学院,江苏常州213164 [2]南京理工大学,江苏南京210094 [3]江苏技术师范学院,江苏常州213001

出　　处：《稀有金属材料与工程》2009年第A01期209-212,共4页Rare Metal Materials and Engineering

基　　金：江苏省高校自然科学重大基础研究项目(06KJA61019)资助

摘　　要：超细粉体获得产业化生产和工业应用的重要前提是必须有适当的方法对所得粉体进行分级。用自制U型管液压装置,对化学还原法制备的铜超细粉体进行了分级研究。用透射电子显微镜(TEM)、粒度仪对分离前后的超细铜粉进行表征。结果表明,液压法能将微米级和纳米级的铜粉完全分开,大部分纳米级铜粉能够得到较好的相互分离。One of the important preconditions about the industrialization and application of superfine powders is that an appropriate classificatiori method should be used in the manufacture process. In this thesis, the classification of superfine copper powders obtained from chemical reduction method has been researched using a special U pipe which was designed and made by ourselves, and the particle sizes and distribution have been characterized by transmission electron microscope （TEM） and laser particle analysis instrument. The results showed that nanoscale copper particles can be separated from microscale copper particles commendatory, and most of the nanoparticles can be separated each other effectively.

关 键 词：液压法 分级 铜超细粉体 

分 类 号：TB383.3[一般工业技术—材料科学与工程]