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过程工程学报 ›› 2018, Vol. 18 ›› Issue (1): 165-170.DOI: 10.12034/j.issn.1009-606X.217223

• 过程与工艺 • 上一篇    下一篇

固态Si颗粒在Na2O-CaO-SiO2多孔微晶玻璃中氧化的均匀性

严明明1,2, 曹建尉2*, 王 志2, 李国华1     

  1. 1. 中国矿业大学(北京)材料科学与工程系,北京 100083;2. 中国科学院过程工程研究所矿产资源绿色过程工程研究部,北京 100190
  • 收稿日期:2017-04-25 修回日期:2017-06-03 出版日期:2018-02-22 发布日期:2018-01-29
  • 通讯作者: 曹建尉 jwcao@ipe.ac.cn
  • 基金资助:
    固态硅调控硅渣多孔微晶玻璃气孔结构机制;高效结晶增值冶金;抛光渣制结构功能一体化多孔微晶玻璃

Homogeneity of Solid Si Particle Oxidation in Na2O-CaO-SiO2 Porous Glass-ceramics

Mingming YAN1,2,  Jianwei CAO2*,  Zhi WANG 2,  Guohua LI1     

  1. 1. Department of Materials Science and Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China; 2. Department of Mineral Resources, Green Process Engineering Research, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2017-04-25 Revised:2017-06-03 Online:2018-02-22 Published:2018-01-29

摘要: 加入固态Si颗粒为Na2O?CaO?SiO2(NCS)多孔微晶玻璃配合料的气泡成核质点以调控孔结构,研究了固态Si颗粒在NCS配合料形成熔体过程中的氧化行为,用ANSYS模型模拟了NCS多孔微晶玻璃配合料的热场分布. 结果表明,固态Si颗粒在NCS熔体形成过程中的氧化始于650℃,固态Si颗粒具有促进NCS配合料热场均匀分布的作用,且在NCS熔体形成过程中氧化程度相同,氧化过程不会影响NCS多孔微晶玻璃孔径分布的均匀性.

关键词: 多孔微晶玻璃, 固态Si颗粒, 热场分布, 氧化, 均匀性

Abstract: Addition solid Si particle as bubbe nucleation spots to adjust the pore structure of Na2O?CaO?SiO2 (NCS) porous glass-ceramics, the oxidation behavior of Si in NCS porous glass-ceramics was studied, its effect on the thermal field distribution of NCS porous glass-ceramics was simulated by ANSYS model. The results showed that the oxidation of solid Si particle started at 650℃ in NCS porous glass-ceramics, and the thermal field distribution of NCS porous glass-ceramics gets uniform with the addition of solid Si particle, so that the oxidation degree of solid Si particle in NCS porous glass-ceramics are same, it won?t affect the pore size distribution of NCS porous glass-ceramics.

Key words: porous glass-ceramics, solid Si particle, thermal field distribution, oxidation, homogeneity