期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
The Phase Transition of Eu2O3 under High Pressures
1
作者 蒋升 白利刚 +7 位作者 刘景 肖万生 李晓东 李延春 唐玲云 张玉峰 张得纯 郑黎荣 《Chinese Physics Letters》 SCIE CAS CSCD 2009年第7期215-217,共3页
Pressure-induced phase transition of cubic Eu2 03 is studied by angle-dispersive x-ray diffraction (ADXD) up to 42.3 GPa at room temperature. A structural transformation from a cubic phase to a hexagonal phase is ob... Pressure-induced phase transition of cubic Eu2 03 is studied by angle-dispersive x-ray diffraction (ADXD) up to 42.3 GPa at room temperature. A structural transformation from a cubic phase to a hexagonal phase is observed, which starts at 5.0 GPa and finishes at about 13.1 GPa. The phase transition leads to a volume collapse of 9.0% at 8.6 GPa. The hexagonal phase of Eu2 03 maintains stable up to the highest experiment pressure. After re/ease of pressure, the high-pressure phase transforms to a monoclinic phase. The pressure-volume data are fitted with the Birch-Murnaghan equation of state. The bulk moduli obtained upon compression from the fitting are 145(2) GPa and 151(6) OPa for the cubic and hexagonal phases, respectively, when their first pressure derivatives are fixed at 4. 展开更多
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部