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无机材料学报

无机材料学报 ›› 2010, Vol. 25 ›› Issue (10): 1053-1057.DOI: 10.3724/SP.J.1077.2010.01053 CSTR: 32189.14.SP.J.1077.2010.01053

• 研究论文 • 上一篇    下一篇

SnO-CaO-P2O5体系无铅封接玻璃的形成与性能优化研究

赵德森1, 洪建和1, 高金飞2, 何明中1, 何 岗1   

  1. (1. 中国地质大学(武汉) 材料科学与化学工程学院, 武汉430074; 2. 华新水泥股份有限公司, 武汉430074)
  • 收稿日期:2009-11-16 修回日期:2010-05-17 出版日期:2010-10-20 网络出版日期:2010-09-26
  • 基金资助:

    国家自然科学基金(50821140308, 50972135）; 材料复合新技术国家重点实验室(武汉理工大学)开放基金(2010-KF-6)

Investigation of Glass-forming Region and Performance Optimization in Lead-free SnO-CaO-P2O5 System

ZHAO De-Sen1, HONG Jian-He1, GAO Jin-Fei2, HE Ming-Zhong1, HE Gang1   

  1. (1. Faculty of Materials Science and Chemical Engineering, China University of Geosciences, Wuhan 430074, China; 2. Huaxin Cement Co., Ltd., Wuhan 430074, China)
  • Received:2009-11-16 Revised:2010-05-17 Published:2010-10-20 Online:2010-09-26
  • Supported by:

    National Nature Science Foundation of China(50821140308, 50972135); State Key Laboratory of Advanced Technology for Materials Synthesis Processing (Wuhan University of Technology) (2010-KF-6)

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摘要： 采用熔体冷却的方法制备了SnO-CaO-P2O5三元体系无铅玻璃. 采用X射线衍射仪、热膨胀仪、绝缘电阻测试仪和粉末失重法研究了该体系玻璃的玻璃形成区、热膨胀系数、体积电阻率及化学稳定性. 结果表明, 样品体积电阻率随P2O5含量的增加先增大后减小, 在P2O5=50mol%附近出现极大值, 随SnO含量的增加逐渐减小. 对10SnO-40CaO-50P2O5-xSiO2系列试样的研究表明, 随着SiO2含量的增加, 样品热膨胀系数由9.8×10-6/℃逐渐减小至7.6×10-6/℃, 体积电阻率逐渐增大, 在酸性和中性溶液中失重率逐渐减小, 在碱性溶液中失重率则逐渐增大.

关键词: SnO-CaO-P2O5玻璃, 玻璃形成区, 掺杂改性, 无铅封接玻璃

Abstract: Lead-free glass in SnO-CaO-P2O5 ternary system were fabricated by melt quenching method. The glass-forming region, coefficient of thermal expansion (CTE), volume resistivity as well as chemical durability of the glass were investigated by the methods of X-ray diffractometer, thermal expansion instrument, insulation resistance instrument, and grain mass loss method. The results show that the glass-forming region is larger than that of SnO-ZnO-P2O5 ternary system. The minimum content of P2O5 to form glass phase should be 25mol%, while it increases rapidly to about 40mol% with the increase of CaO amount. Softening temperature (about 445℃) and CTE (9.0×10?6-10.0×10-6/℃) of the glass are equivalent with those of Pb-based sealing glass. The volume resistivity presents a maximum at about 50mol% P2O5 content with the increase of P2O5 amount, while it decreases with the increase of SnO amount. Research on the samples of 10SnO-40CaO-50P2O5-xSiO2 system show that with the increase of SiO2 amount, the CTE decreases from 9.8×10-6/℃ to 7.6×10-6/℃ and the volume resistivity increases gradually, while the mass loss decreases gradually in acid and neutral condition and increases in basic condition.

Key words: SnO-CaO-P2O5 glass, glass-forming region, modification by doping, lead-free sealing glass

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