摘要
本文研究了电子束辐照和加热条件下正交相MoO_3的相变。利用透射电子显微学研究表明:(1)电子束辐照使MoO_3相变生成具有面心立方结构的MoO,两相之间取向关系为[010]MoO_3//[010]Mo O,(200)MoO_3//(200)Mo O;(2)MoO_3在873 K时相变生成单斜相的MoO_2,在相变产物中首次发现了具有(0 11)孪晶的MoO_2纳米颗粒。研究结果使之对MoO_3在不同环境下的相变有了更深入的了解。
In this work,the influences of electron beam irradiation and temperature on the phase transition of orthorhombic MoO3were studied by transmission electron microscopy.The results indicated that:(1)MoO with face-centered cubic structure was generated from MoOg by electron beam irradiation and the orientation relationship between the two phases is:[010]MoO3//[010],(200)MoO3//(200)MoO;(2)At873K,MoO』phase transformed to monoclinic MoO.phase,with novel(011)twinning structure.The results provide a deeper understanding of phase transition of MoO3under different conditions.
作者
赵鹏辉
曹凡
贾双凤
郑赫
王建波
赵东山
ZHAO Peng-hui;CAO Fan;JIA Shuang-feng;ZHENG He;WANG Jian-bo;ZHAO Dong-shan(School of Physics and Technology, Center for Electron Microscopy, MOE Key Laboratory of Artificial Micro- and Nanostructures and Institute for Advanced Studies, Wuhan University, Wuhan Hubei 430072;Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha Hunan 410083, China)
出处
《电子显微学报》
CAS
CSCD
2017年第5期429-435,共7页
Journal of Chinese Electron Microscopy Society
基金
国家自然科学基金资助项目(Nos.51671148
51271134
J1210061
11674251
51501132
51601132)
湖北省自然科学基金资助项目(Nos.2016CFB446
2016CFB155)
中央高校基本科研业务费专项基金
高等学校仪器设备和优质资源共享系统(No.CERS-1-26)
中国博士后科学基金资助项目(No.2014T70734)
中南大学轻质高强结构材料国家级重点实验室开放研究基金
苏州科技项目(No.SYG201619)
关键词
Mo03
透射电子显微学
相变
取向关系
molybdenum oxide
transmission electron microscopy
phase transition
orientation relationship
