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

+高級檢索
C/C復(fù)合材料表面TaC涂層的制備和生成機(jī)制
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家重點基礎(chǔ)研究發(fā)展規(guī)劃（“973”計劃）項目（2006CB600908）


Preparation and Formation Mechanism of TaC Coating on Carbon/Carbon Composites
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    報道了一種在C/C復(fù)合材料基體上制備抗燒蝕TaC涂層的新方法。采用紅外光譜、XRD及SEM表征了生成TaC涂層的Ta源：TaO2F·rH2O·TaF5。采用SEM觀察了不同溫度下轉(zhuǎn)變生成的TaC涂層的形貌。在1200 ℃高溫?zé)崽幚?，TaC涂層形貌為細(xì)顆粒狀，在1800 ℃高溫?zé)崽幚砗?，TaC涂層為柱狀晶。TaC的生成機(jī)制為：TaO2F·rH2O·TaF5高溫分解凝聚生成的Ta2O5沉積在C/C復(fù)合材料基體表面，碳原子在Ta2O5中擴(kuò)散反應(yīng)生成TaC，TaC涂層形貌可由生成Ta2O5的凝聚成核理論解釋

    Abstract:

    A new technology for preparation of TaC coating on Carbon/carbon composites is reported. TaC was turned from TaO2F·rH2O·TaF5, which was characterized by FITR, XRD and SEM. The morphologies of TaC coating at different temperatures were observed by SEM. At 1200 ℃, the TaC coating shows the particular form. When the heat treatment temperature increased to 1800 ℃, the TaC coating was mainly columnar. The formation mechanism of TaC is that Carbon atom diffuse into Ta2O5 deposit, which is coming from TaO2F·rH2O·TaF5 and reacted into TaC at high temperature. The morphology of TaC coating can be interpreted by the theory of Ta2O5 deposited nucleation

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

李江鴻,張紅波,熊 翔,肖 鵬,黃伯云. C/C復(fù)合材料表面TaC涂層的制備和生成機(jī)制[J].稀有金屬材料與工程,2009,38(3):496~499.[Li Jianghong, Zhang Hongbo, Xiong Xiang, Xiao Peng, Huang Baiyun. Preparation and Formation Mechanism of TaC Coating on Carbon/Carbon Composites[J]. Rare Metal Materials and Engineering,2009,38(3):496~499.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2008-02-19
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: