摘要
利用粉末冶金方法研制了一种新型触头材料AgSnO2-La2O3-Bi2O3。选择优化过程参数如下:48MPa成形,920℃×8h烧结;64MPa复压,150℃×0.5h去应力退火。所得的AgSnO2-La2O3-Bi2O3触头材料与AgSnO2(12)和AgCdO(12)的物理、机械性能相近,电性能优于AgSnO2(12)和AgCdO(12)。
A new kind of contact material AgSnO2-La2O3-Bi2O3 was developed by using the powder metallurgy method. The optimum process parameters were as followed： forming at the pressure of 48 MPa,sintering at 920 ℃ for 8 h,repressing at the pressure of 64 MPa and annealing at 150 ℃ × 0. 5 h . The AgSnO2-La2O3-Bi2O3 contact material had similar physical and mechanical properties but better electrical performance than that of AgSnO2（12） and AgCdO（12）.
出处
《低压电器》
北大核心
2010年第8期1-3,8,共4页
Low Voltage Apparatus
基金
河北省自然科学基金资助项目(E2009000063)
关键词
触头材料
稀土合金
性能
contact material
rare earth alloy
performance
