5Si3, MoSi2, Ni2Si, NiSi2 和MoNiSi組成,同時(shí)隨著涂層中Mo的摩爾比由20%增加至40%,位于涂層表面的具有四方結(jié)構(gòu)的MoSi2晶粒逐漸消失。Ag對(duì)Mo20-Ni32-Si48、Mo30-Ni28-Si42、Mo40-Ni24-Si36金屬化SiC陶瓷在1000 oC保溫30分鐘后對(duì)應(yīng)的最終接觸角分別為45o, 79o 和 85o,該結(jié)果與Ag滴和三種Mo-Ni-Si涂層之間的相互作用密切相關(guān)。同時(shí)在潤(rùn)濕試驗(yàn)前后,在Mo-Ni-Si涂層/SiC襯底界面沒有發(fā)現(xiàn)明顯的反應(yīng)層。"/>

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
SiC陶瓷表面Mo-Ni-Si金屬化及其與Ag的潤(rùn)濕性研究
DOI:
作者:
作者單位:

西安交通大學(xué) 金屬材料強(qiáng)度國(guó)家重點(diǎn)實(shí)驗(yàn)室,江蘇大學(xué)材料學(xué)院,江蘇大學(xué) 材料科學(xué)與工程學(xué)院,Institute for Energetics and Interphases, Italy,Institute for Energetics and Interphases,西安交通大學(xué) 金屬材料強(qiáng)度國(guó)家重點(diǎn)實(shí)驗(yàn)室,Institute for Energetics and Interphases

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:


Surface Metallization of SiC Ceramic by Mo-Ni-Si Coatings for improving its wettability by molten Ag
Author:
Affiliation:

School of Materials Science and Engineering,Jiangsu University,,,,

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(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:

    采用真空熔燒工藝在SiC陶瓷表面制備了三種化學(xué)成分的Mo-Ni-Si金屬化涂層,研究涂層的相組成和涂層/SiC陶瓷界面的微結(jié)構(gòu)。通過座滴法實(shí)驗(yàn)考察純Ag在SiC陶瓷涂層上的潤(rùn)濕與鋪展特性,分析和討論了Ag/金屬化SiC陶瓷體系的界面行為。實(shí)驗(yàn)結(jié)果表明,該金屬化涂層主要由Mo5Si3, MoSi2, Ni2Si, NiSi2 和MoNiSi組成,同時(shí)隨著涂層中Mo的摩爾比由20%增加至40%,位于涂層表面的具有四方結(jié)構(gòu)的MoSi2晶粒逐漸消失。Ag對(duì)Mo20-Ni32-Si48、Mo30-Ni28-Si42、Mo40-Ni24-Si36金屬化SiC陶瓷在1000 oC保溫30分鐘后對(duì)應(yīng)的最終接觸角分別為45o, 79o 和 85o,該結(jié)果與Ag滴和三種Mo-Ni-Si涂層之間的相互作用密切相關(guān)。同時(shí)在潤(rùn)濕試驗(yàn)前后,在Mo-Ni-Si涂層/SiC襯底界面沒有發(fā)現(xiàn)明顯的反應(yīng)層。

    Abstract:

    Three Mo-Ni-Si metallizing coatings with various chemical compositions were deposited on SiC ceramic substrates by vacuum fusion sintering process, and the phase compositions of the coatings and their interface microstructure were analyzed. The wetting and spreading of molten Ag on the coated SiC ceramic substrates were investigated by the sessile drop technique, and the interfacial behavior of the Ag/coated SiC systems was analyzed and discussed. The experimental results showed that the coatings were mainly composed of Mo5Si3, MoSi2, Ni2Si, NiSi2 and MoNiSi. The tetragonal MoSi2 grains located on the coating surface disappeared with the concentration of Mo increasing from 20 at.% to 40 at.%. The final contact angles of Ag/coated SiC systems at 1000 oC for holding 30 min were 45o, 79o and 85o for Mo20-Ni32-Si48, Mo30-Ni28-Si42 and Mo40-Ni24-Si36, respectively. This result can be closely related to the interactions between the Ag drop and the microstructure of the three Mo-Ni-Si coatings. No visible reaction layers were observed at all the coating/substrate interfaces before and after the wetting tests.

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

趙三團(tuán),張相召,劉桂武,Valenza Fabrizio, Muolo Maria Luigia,喬冠軍,Passerone Alberto. SiC陶瓷表面Mo-Ni-Si金屬化及其與Ag的潤(rùn)濕性研究[J].稀有金屬材料與工程,2018,47(3):759~765.[Zhao Santuan, Zhang Xiangzhao, Liu Guiwu, Valenza Fabrizio, Muolo Maria Luigia, Qiao Guanjun, Passerone Alberto. Surface Metallization of SiC Ceramic by Mo-Ni-Si Coatings for improving its wettability by molten Ag[J]. Rare Metal Materials and Engineering,2018,47(3):759~765.]
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:2016-03-24
  • 最后修改日期:2016-05-13
  • 錄用日期:2016-05-19
  • 在線發(fā)布日期: 2018-04-11
  • 出版日期: