最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級(jí)檢索
A Novel Method for the Preparation of Ag/SnO2 Electrical Contact Materials
DOI:
作者:
作者單位:

作者簡(jiǎn)介:

通訊作者:

中圖分類(lèi)號(hào):

基金項(xiàng)目:


A Novel Method for the Preparation of Ag/SnO2 Electrical Contact Materials
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問(wèn)統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    描述了一種制備Ag/SnO2電接觸材料（SnO2的質(zhì)量分?jǐn)?shù)為12%）的新方法。首先采用共沉淀法制備Ag-SnO2納米復(fù)合粉體（SnO2的質(zhì)量分?jǐn)?shù)為42%）并對(duì)該Ag-SnO2納米復(fù)合粉體進(jìn)行了表征。XRD結(jié)果表明制備的復(fù)合粉體由純立方相的Ag和四方金紅石相的SnO2組成；SEM及TEM結(jié)果表明，納米SnO2與納米Ag顆粒均勻彌散分布在復(fù)合粉體中；并借助于TG-DTA熱分析對(duì)納米復(fù)合粉體前驅(qū)體的制備過(guò)程進(jìn)行了分析。然后，將Ag-SnO2納米復(fù)合粉體與Ag粉混合，采用粉末冶金法制備成Ag/SnO2電接觸材料，并對(duì)制備的Ag/SnO2電接觸材料進(jìn)行了表征。結(jié)果表明，由于納米SnO2在Ag基體中彌散分布，制備的材料的物理性能如密度、硬度及電導(dǎo)率比普通工藝制備的材料好

    Abstract:

    A novel method was presented to prepare Ag/SnO2 (12 wt% SnO2) electrical contact materials. First, Ag-SnO2 nano composite powder with 42 wt% SnO2 synthesized by a coprecipitation method was characterized. XRD results reveal that the synthesized composite powder is composed of cubic Ag and rutile type of SnO2. SEM and TEM images show that nano-Ag and nano-SnO2 particles are homogeneously dispersed in the composite powder. The preparation process of nano composite powder was analyzed with the help of the TG-DTA curves of the precipitation. Then, the obtained Ag-SnO2 nano composite powder was mixed with Ag powder to prepare Ag/SnO2 electrical contact materials (ECM) by powder metallurgy process and the prepared Ag/SnO2 electrical contact materials was characterized. The results demonstrate that owing to the higher dispersion of nano SnO2 particles in Ag matrix, the physical properties of ECM prepared by the new method, such as the density, hardness and conductivity are better than that by the traditional method

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

喬秀清,申乾宏,張玲潔,陳樂(lè)生,樊先平,楊 輝. A Novel Method for the Preparation of Ag/SnO2 Electrical Contact Materials[J].稀有金屬材料與工程,2014,43(11):2614~2618.[Qiao Xiuqing, Shen Qianhong, Zhang Lingjie, Chen Lawson, Fan Xianping, Yang Hui. A Novel Method for the Preparation of Ag/SnO2 Electrical Contact Materials[J]. Rare Metal Materials and Engineering,2014,43(11):2614~2618.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2013-12-25
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2015-04-07
  • 出版日期: