材料期刊网

1. 首页
2. 检索结果页

原词结果 | 译词结果

Structure Transition of Nanocrystalline Fe_2O_3

Jian SHA , Xisheng YE , Bin CHEN , Qirui ZHANG and Zhengkuan JIAO(Dept. of Physics , Zhejiang University Hangzhou 310027 , China)Guanglie LU(Central Lab. , Hangzhou University Hangzhou 310028 , China)Zifen PENG and Lide ZHANG(Institute of Solid State Physics , Chi

材料科学技术（英文）

A structure transition of Fe2O3 nanocrystal was studied by using DTA and TG thermal analysis and X-ray diffraction method. We found that size increase of the nanocrystals is larger after the structure transition than that before the transition. It means that the structure transition is beneficial on growth of nanocrystals

关键词:

Structural Phase Transition in Nanostructured TiO_2

Xisheng YE , Jian SHA and Zhengkuan JIAO(Dept. of Physics , Zhejiang University , Hangzhou 310027. China)Zifei PENG and Lide ZHANG(Institute of Solid State Physics , Chinese Academy of Sciences , Hefei 230031 , China)

材料科学技术（英文）

Using DTA (difFerential thermal analysis) measurement on nanostructured TiO2, we find two endothermic peaks on the DTA curve. From XRD (X-ray diffraction) analysis of the original nanostructured TiO2 and its heat-treated samples, we obtain the following results: the first endothermic peak corresponds to the desorption of physical or chemical absorption, the second one is related to the structural phase transition from brookite to anatase then to rutile, and this structural phase transition is beneficial to the grain growth of nanocrystal

关键词:

出版年份

刊物分类

相关作者

相关热词