中国物理B ›› 2016, Vol. 25 ›› Issue (7): 76101-076101.doi: 10.1088/1674-1056/25/7/076101
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
Behaviors of Zn2GeO4 under high pressure and high temperature
Shu-Wen Yang(杨淑雯), Fang Peng(彭放), Wen-Tao Li(李文涛), Qi-Wei Hu(胡启威), Xiao-Zhi Yan(晏小智), Li Lei(雷力), Xiao-Dong Li(李晓东), Duan-Wei He(贺端威)
- 1 Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;
2 Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China;
3 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Behaviors of Zn2GeO4 under high pressure and high temperature
Shu-Wen Yang(杨淑雯)1, Fang Peng(彭放)1, Wen-Tao Li(李文涛)1,2, Qi-Wei Hu(胡启威)1, Xiao-Zhi Yan(晏小智)1,2, Li Lei(雷力)1, Xiao-Dong Li(李晓东)3, Duan-Wei He(贺端威)1
- 1 Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;
2 Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China;
3 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
摘要：
The structural stability of Zn2GeO4 was investigated by in-situ synchrotron radiation angle dispersive x-ray diffraction. The pressure-induced amorphization is observed up to 10 GPa at room temperature. The high-pressure and high-temperature sintering experiments and the Raman spectrum measurement firstly were performed to suggest that the amorphization is caused by insufficient thermal energy and tilting Zn-O-Ge and Ge-O-Ge bond angles with increasing pressure, respectively. The calculated bulk modulus of Zn2GeO4 is 117.8 GPa from the pressure-volume data. In general, insights into the mechanical behavior and structure evolution of Zn2GeO4 will shed light on the micro-mechanism of the materials variation under high pressure and high temperature.
中图分类号: (X-ray diffraction)
- 61.05.cp