AgSnO_2电接触材料的制备和直流电弧侵蚀形貌特征  

Preparation and DC Arc Erosion Morphology of AgSnO_2 Contact Materials

作　　者：张昆华[1] 管伟明[1] 孙加林[1] 卢峰 陈敬超[3] 周晓龙[3] 杜焰[3] 

机构地区：[1]昆明贵金属研究所,云南昆明650221 [2]贵研铂业有限公司,云南昆明650221 [3]昆明理工大学,云南昆明650093

出　　处：《稀有金属材料与工程》2005年第6期924-927,共4页Rare Metal Materials and Engineering

基　　金：国家科技攻关(2001BA326C)云南省科技攻关(2000B-03)联合资助项目

摘　　要：采用反应合成和热挤压方法制备出新型银二氧化锡电接触材料,运用X-ray分析了AgSnO2(10)材料的物相组成。在直流条件下进行AgSnO2(10)触点的电寿命实验,利用扫描电镜(SEM)、电子探针(EPMA)等实验手段对触点烧损后熔层表面进行元素成分分析,研究了熔层表面的微观组织结构。归纳出AgSnO2(10)材料的4种侵蚀形貌特征。A new type of silver tin oxide contact material was fabricated by reaction synthesis processing and hot extrusion in the paper. The phases of AgSnO2 (10) after reaction synthesis processing were determined by X-ray diffraction. Electrical contact life of AgSnO2(10) were experimented with direct current. The surface morphologies of melting range was examined by scanning electron microscope(SEM), and the element compositions of surface were analyzed by electro-probe microanalyser (EPMA), the microstructure and composition of the surface of are erosion are also analyzed. Four kinds surface morphologies of the AgSnO2(10) materials were classified.

关 键 词：反应合成法 银二氧化锡 电接触材料 电弧侵蚀 表面形貌 

分 类 号：TM503.5[电气工程—电器]