高等学校化学研究 ›› 2010, Vol. 26 ›› Issue (3): 352-354.
Synthesis of Small-sized Coesite Under Lower Pressure
WANG De-jun1,2, LIU Xiao-mei1*, ZHU Cheng-jun1, YAN Duan-ting1, LIU Fu-lin1 and SU Wen-hui1,3,4
- 1. State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130021, P. R. China;
2. Adult Education College of Changchun University, Changchun 130022, P. R. China;
3. Center of the Condensed Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, P. R. China;
4. International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, P. R. China
Synthesis of Small-sized Coesite Under Lower Pressure
WANG De-jun1,2, LIU Xiao-mei1*, ZHU Cheng-jun1, YAN Duan-ting1, LIU Fu-lin1 and SU Wen-hui1,3,4
- 1. State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130021, P. R. China;
2. Adult Education College of Changchun University, Changchun 130022, P. R. China;
3. Center of the Condensed Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, P. R. China;
4. International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, P. R. China
摘要：
With the help of high-energy mechanical milling and α-SiO2 as the initial material, we investigated the synthesis of coesite at a high temperature and high pressure under the condition of adding a certain amount of hard Fe filling. The synthetic samples were measured by XRD and Raman spectroscopy. The results show that a small amount of small-sized coesite can be obtained under 2.5 GPa and 973 K.