(东北大学有色金属冶金系,沈阳110006)
摘 要: 用Q900自动图象分析系统测定了用(NH4)2WS4热分解制备的WS2颗粒的分形结构,得到WS2周边分维数Df在1. 015~1. 032范围,表面分维数Ds在2.015~2.032范困,其分维数随着粒度减小而增大。给出了Df、 Ds与颗粒等效直径d的关系,Df、Ds可以作为WS2颗粒形状和大小的表征值。
关键字: WS2 粒度 形态 分维数 图象分析
WITH HIGH LEAD CONTENT AND COMPREHENSIVE
UTILIZATION OF Sb AND Pb IN THE ALLOY
(Institute of Metallurgical Physicochernistry and Chernistry Materials,
Central South, University of Technology, Changsha 410083)
Abstract:Using Sb-Pb alloy containing 3%一10% Pb produced by some smelters in Guangxi as raw materials. further processing on antimony products has been studied as to develop a series of products . Cubic system , mirco-particle, non-dusting and high percetage(99. 999%) antimony trioxide,high percentage(99.999%)antimony and several lead base engineering alloys have been developed by means of technological method;morover Sb and Pb alloy have been untilized fully and effectively.
Key words: Sb-Pb alloy with high lead content further processing comprehensive utilization