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Crystallization Kinetics of R2O-CaO-Al2O3-SiO2-F Glass-Ceramics
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Qingchao ZHAO1, Hang YANG1, Jianwei CAO2, Weiguang LI1, Shifu SHEN1, Haiying LIU1
Journal of the Chinese Ceramic Society | 2020, 48(7) : 1114 - 1121
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Journal of the Chinese Ceramic Society | 2020, 48(7): 1114-1121
• Research Articles •
Crystallization Kinetics of R2O-CaO-Al2O3-SiO2-F Glass-Ceramics
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Qingchao ZHAO1, Hang YANG1, Jianwei CAO2, Weiguang LI1, Shifu SHEN1, Haiying LIU1
Affiliations
  • 1.Beijing General Research Institute of Mining & Metallurgy, Beijing 100160, China
  • 2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

    • ZHAO Qingchao (1987-), male, Master. E-mail:

About Author:

ZHAO Qingchao (1987-), male, Master. E-mail:

Published: 2020-07-20 doi: 10.14062/j.issn.0454-5648.20190668
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R2O-CaO-SiO2-Al2O3-F (RCSAF) glass-ceramics were prepared via melting method. The nucleation and crystal growth kinetics of RCSAF glass-ceramics were analyzed by thermogravimetric analysis and X-ray diffraction. The nucleation and crystal growth kinetics of the glass-ceramics were obtained by Gaussian fitting. The temperature-time-transition (T-T-T) curve of R2O-CaO-SiO2-Al2O3-F glass-ceramics under non-isothermal heating conditions was obtained, and the Gaussian fitting of glass-ceramics and crystal growth kinetics were obtained. The crystallization kinetic parameters including the crystallization apparent activation energy (Ea) and the crystallization index (n) were also measured with Ozawa and JMA methods (i.e. Ea=357.74 kJ/mol, n=3.13). Effects of time, temperature and precipitated crystal phase on the crystallization rate curve of R2O-CaO-SiO2-Al2O3-F glass-ceramics were established. The CaF2 crystal particles precipitated from glass-ceramics were uniformly distributed in canasite and α-canasite. The crystal precipitation process of RCSAF glass-ceramics was further verified by typical crystal structure presented in scanning electron microscopic images.

glass-ceramics  /  temperature-time-transition curve  /  crystallization activation energy  /  crystallization kinetics  /  Gaussian fitting
赵庆朝, 杨航, 曹建尉, 李伟光, 申士富, 刘海营. R2O-CaO-SiO2-Al2O3-F系微晶玻璃析晶动力学. 硅酸盐学报, 2020 , 48 (7) : 1114 -1121 . DOI: 10.14062/j.issn.0454-5648.20190668
Qingchao ZHAO, Hang YANG, Jianwei CAO, Weiguang LI, Shifu SHEN, Haiying LIU. Crystallization Kinetics of R2O-CaO-Al2O3-SiO2-F Glass-Ceramics[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (7) : 1114 -1121 . DOI: 10.14062/j.issn.0454-5648.20190668
Appendix
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Year 2020 volume 48 Issue 7
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Article Info
doi: 10.14062/j.issn.0454-5648.20190668
  • Receive Date：2019-10-10
  • Online Date：2026-10-29
  • Published：2020-07-20
Article Data
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History
  • Received：2019-10-10
  • Revised：2019-12-10
Funding
Affiliations
    1.Beijing General Research Institute of Mining & Metallurgy, Beijing 100160, China
    2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Corresponding:

YANG Hang (1988-), male, Master. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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