国产aaaa级全身裸体精油片_337p人体粉嫩久久久红粉影视_一区中文字幕在线观看_国产亚洲精品一区二区_欧美裸体男粗大1609_午夜亚洲激情电影av_黄色小说入口_日本精品久久久久中文字幕_少妇思春三a级_亚洲视频自拍偷拍

A new contact material——Ag/SnO2-La2O3-Bi2O3 A new contact material——Ag/SnO2-La2O3-Bi2O3

A new contact material——Ag/SnO2-La2O3-Bi2O3

  • 期刊名字:稀有金屬
  • 文件大?。?/li>
  • 論文作者:LU Jianguo,WANG Jingqin,ZHAO J
  • 作者單位:Institute of Electrical Apparatus
  • 更新時(shí)間:2023-02-12
  • 下載次數(shù):
論文簡介

A super-fine compound powder, Ag/SnO2+La2O3+ Bi2O3, has been obtained using the chemical coprecipitation method. And a new contact material, Ag/SnO2+La2O3+Bi2O3, was produced by the powder metallurgy method. Its properties are as follows: the density is 9.75-9.93 g/cm3, the resistivity is 2.31-2.55 cm, the hardness is 880-985 MPa. Its microstructure shows that the fine oxides have a uniform distribution in the silver matrix. The results of make-break capacity and temperature rise testing show that the new material has better ability of anti-arc erosion and lower temperature rise than that of commonly used Ag/CdO.

論文截圖
版權(quán):如無特殊注明,文章轉(zhuǎn)載自網(wǎng)絡(luò),侵權(quán)請聯(lián)系cnmhg168#163.com刪除!文件均為網(wǎng)友上傳,僅供研究和學(xué)習(xí)使用,務(wù)必24小時(shí)內(nèi)刪除。