AgSnO2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 AgSnO2 Contact Materials

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。

Abstract:

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 arc erosion are also analyzed. Four kinds surface morphologies of the AgSnO2(10) materials were classified.