纳米AgSnO2触头材料的制备与组织分析

Preparation and Microstructure Analysis of Nanostructured Silver Tin Oxide Contact Materials

摘要:

利用高能球磨技术制备纳米AgSnO2粉末，热压烧结后，制得纳米AgSnO2块体，与传统内氧化法制得的AgSnO2InO3比较表明，高能球磨法能够克服内氧化法氧化物的聚集及晶界处析出的缺陷，得到SnO2均匀分布于Ag基体上的组织结构。

关键词:制备 组织分析 纳米材料 高能球磨 AgSnO2 触头材料

Abstract:

Nanostructured AgSnO 2 powders were prepared by high energy ball milling. After hot press sintering, the nanostructured AgSnO 2 contact materials were obtained. Compared with the AgSnO 2In 2O 3 prepared by internal oxidation with clustered at crystal boundary, the nonostructured AgSnO 2 Composite bulk has the microstructure with nano scaled SnO 2 particles dispersed on the silver matrix.

Key words:nano structured material,high energy ball milling,electrical contact