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材料导报  2019, Vol. 33 Issue (6): 970-974    https://doi.org/10.11896/cldb.201906011
  无机非金属及其复合材料 |
Cr2O3对尾矿氟金云母微晶玻璃电学性能和切削性能的影响
张雪峰1,2, 崔泽波1, 贾晓林2, 刘芳2
1 内蒙古科技大学理学院,包头 014010
2 内蒙古科技大学工程中心,包头 014010
The Impact of Cr2O3 on Electrical Properties and Mechanical Properties of Tailing Fluorphlogopite Glass-ceramic
ZHANG Xuefeng1,2, CUI Zebo1, JIA Xiaolin2, LIU Fang2
1 Inner Monglia University of Science and Technology, Baotou 014010
2 Engineering Center of Inner Monglia University of Science and Technology, Baotou 014010
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摘要 以金尾矿为主要原料,采用传统熔融法制备尾矿氟金云母微晶玻璃。利用DSC、XRD、SEM等检测手段,对尾矿氟金云母微晶玻璃的组织结构、电学性能、加工性能进行研究。实验结果表明:以Cr2O3为晶核剂,650 ℃核化2 h,860 ℃晶化3 h,可制备主晶相为KMg3(Si3AlO10)F2的氟金云母微晶玻璃。随着Cr2O3含量增加,其晶体交错程度增大,径厚比达73。常温下,尾矿微晶玻璃体积电阻率达1012 Ω·m,而温度达到600 ℃时,尾矿微晶玻璃体积电阻率为106 Ω·m; 常温100 kHz时,尾矿微晶玻璃的介电常数为8.79~9.64,介电损耗为10-3。随着Cr2O3含量增加,材料硬度逐渐下降后达到稳定,材料切削性能先增强,之后趋于稳定,基于材料硬度计算所得的切削性大于0.032。
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张雪峰
崔泽波
贾晓林
刘芳
关键词:  尾矿  氟金云母微晶玻璃  切削性  电学性能    
Abstract: Tailing fluorphlogopite (KMg3(Si3AlO10)F2) glass-ceramics were prepared by traditional melting method with gold tailing as main raw mate-rial. The microstructure, electrical properties and mechanical properties of the as-prepared glass-ceramics were investigated by DSC, XRD and SEM. The results revealed that the fuorophlogopite glass-ceramics with main crystalline phase of KMg3(Si3AlO10)F2 were prepared after nucleation at 650 ℃ for 2 h and crystallization at 860 ℃ for 3 h. With the increment of Cr2O3 content, the degree of crystal interlacing in the glass-ceramics improved and the aspect ratio reached 73. The tailings fluorophlogopite glass-ceramics exhibited the volume resistivity of 1012 Ω·m and 106 Ω·m at room temperature and at 600℃, respectively. Under the condition of room temperature and 100 kHz, the dielectric constant of tai-lings fluorophlogopite glass-ceramics varied in the range of 8.79—9.64 and the dielectric loss was 10-3. With the increment of Cr2O3 content, the hardness of the glass-ceramics dropped gradually and then maintained stable, while the mechanical properties of the glass-ceramics strengthened at first and then stayed almost unchanged. The mechanical properties calculated on the basis of hardness was more than 0.032.
Key words:  tailing    fluorphlogopite glass-ceramic    machinability    electrical properties
                    发布日期:  2019-04-03
ZTFLH:  TQ171  
基金资助: 内蒙古自治区科技创新引导项目(2017CXYD-4)
作者简介:  张雪峰,就职于内蒙古科技大学,博士研究生导师,教授,主要研究方向为固体废弃物资源综合利用、微晶玻璃、磁性材料。崔泽波,2018年6月毕业于内蒙古科技大学,获得理学硕士学位。
引用本文:    
张雪峰, 崔泽波, 贾晓林, 刘芳. Cr2O3对尾矿氟金云母微晶玻璃电学性能和切削性能的影响[J]. 材料导报, 2019, 33(6): 970-974.
ZHANG Xuefeng, CUI Zebo, JIA Xiaolin, LIU Fang. The Impact of Cr2O3 on Electrical Properties and Mechanical Properties of Tailing Fluorphlogopite Glass-ceramic. Materials Reports, 2019, 33(6): 970-974.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.201906011  或          http://www.mater-rep.com/CN/Y2019/V33/I6/970
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