CHANG Zhuoya 1, HUANG Fei 1, ZHANG Zhibin 1, WANG Xinyu 1, WEN Xinyu 1, SONG Guichang 2, LI Mingyu 3
(1.School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, Liaoning, China; 2. Hebei Chongli Zijin mining co. LTD, Zhangjiakou, 075000, Hebei, China; 3. Professional Technology Innovation Center for Comprehensive Utilization of Iron Ore Resources, Chaoyang, 122400, Liaoning, China)
Abstract: Diopside ceramic material has good mechanical and chemical properties, has been widely used in building ceramics,daily ceramics, glass-ceramics and other fields. Systematic study of the factors affecting the crystallization and growth of diopside can provide a theoretical basis for the crystallization mechanism of diopside ceramic materials for processing, technological design and application. Diopside crystals were prepared from natural rocks by melting method. The effect of melting temperature on the growth mechanism of diopside was studied. X-ray diffraction (XRD), field emission electron probe microanalysis (EPMA) and differential scanning calorimetry (DSC) were used to study the crystal growth process of diopside at different melting temperatures. The results show that the microstructure of diopside is different with the increasing of melting temperature in the range of 1210~1250 ℃.
Key words: melting temperature; diopside; crystal growt