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
缺陷螢石型(Sm0.6Y0.4)2Zr2O7陶瓷中的短程有序化現(xiàn)象
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家自然科學(xué)基金 (50972030)；山東省自然科學(xué)基金 (ZR2012EMQ011)


Short-Range Order Phenomena in Defect Fluorite-Type (Sm0.6Y0.4)2Zr2O7 Ceramic
Author:
Affiliation:

Fund Project:

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

    采用X射線衍射、高分辨透射電鏡、選區(qū)電子衍射以及拉曼光譜等技術(shù)手段研究了(Sm0.6Y0.4)2Zr2O7陶瓷的晶體結(jié)構(gòu)。X射線衍射表明，(Sm0.6Y0.4)2Zr2O7 陶瓷為單一立方相缺陷型螢石結(jié)構(gòu)。然而高分辨電鏡和選區(qū)電子衍射觀察結(jié)果顯示，在電子衍射花樣中除了缺陷型螢石相點陣的衍射外，還發(fā)現(xiàn)有對應(yīng)于燒綠石相的弱散射斑點。這表明在無序的缺陷型螢石相點陣中存在短程有序化現(xiàn)象。拉曼光譜結(jié)果進一步證實了在微米或納米尺度范圍內(nèi)存在短程有序化現(xiàn)象

    Abstract:

    The crystal structure of (Sm0.6Y0.4)2Zr2O7 ceramic has been investigated by X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM) coupled with selected area electron diffraction (SAED) and Raman spectroscopy. XRD result shows that (Sm0.6Y0.4)2Zr2O7 ceramic exhibits a single defect fluorite-type structure. However, HRTEM and SAED observation reveals that additional weak diffuse reflections belonging to the pyrochlore-type structure appear in the electron diffraction patterns expect for the characteristic reflections of the defect fluorite-type lattice, which suggests short-range ordering in the bulk defect fluorite lattice. Raman spectroscopy also confirms the short-range order phenomenon at the micro- or nano-scaled regions

    參考文獻
    相似文獻
    引證文獻
引用本文

夏校良,鄭 軼,于硯廷,李 曄,歐陽家虎.缺陷螢石型(Sm0.6Y0.4)2Zr2O7陶瓷中的短程有序化現(xiàn)象[J].稀有金屬材料與工程,2014,43(5):1169~1172.[Xia Xiaoliang, Zheng Yi, Yu Yanting, Li Ye, Ouyang Jiahu. Short-Range Order Phenomena in Defect Fluorite-Type (Sm0.6Y0.4)2Zr2O7 Ceramic[J]. Rare Metal Materials and Engineering,2014,43(5):1169~1172.]
DOI：[doi]

復(fù)制
文章指標
  • 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:2013-05-07
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2014-10-13
  • 出版日期: