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硅酸盐通报 ›› 2017, Vol. 36 ›› Issue (4): 1187-1192.

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不同方式引入BZB制备低温烧结的Ba2Ti9O20陶瓷

金彪;汪潇;?盍羲?   

  1. 河南城建学院材料与化工学院,平顶山,467036;河南城建学院材料与化工学院,平顶山 467036;河南科技大学材料科学与工程学院,洛阳 471003
  • 出版日期:2017-04-15 发布日期:2021-01-18

Preparation of Low-temperature Sintered Ba2Ti9O20 Ceramics Doped with BZB by Different Ways

JIN Biao;WANG Xiao;YANG Liu-shuan   

  • Online:2017-04-15 Published:2021-01-18

摘要: 以BaCO3和TiO2粉末为原料,采用传统固相反应法制备Ba2Ti9O20陶瓷.以BiCl3、Zn(NO3)2 、H3BO3溶液为前驱液,通过液相法引入Bi2O3-ZnO-B2O3(BZB)助烧剂以降低Ba2Ti9O20陶瓷的烧结温度代替直接混合Ba2Ti9O20和BZB粉末.结果表明,液相法引入0.3 mol/L BZB溶液,1150 ℃烧结3 h所得Ba2Ti9O20陶瓷介电性能最佳(εr=37,Qf=23485 GHz),优越于固相混合法所得最佳介电性能(εr=34, Qf=16985 GHz).

关键词: 微波介质陶瓷;固相反应;介电性能;低温烧结

Abstract: Ba2Ti9O20 ceramics were synthesized by the traditional solid-state reaction method, using BaCO3 and TiO2 as raw materials.In order to reduce the sintering temperature of Ba2Ti9O20 ceramics, liquid-phase method was used to dope Bi2O3-ZnO-B2O3(BZB) by precursor solution (BiCl3,Zn(NO3)2 and H3BO3) instead of mixing BZB powder directly with Ba2Ti9O20 ceramics.The optimal concentration of BZB was found to be 0.3 mol/L, and the derived Ba2Ti9O20 ceramic sintered at 1150 ℃ for 3 h presented good microwave dielectric properties of εr=37 and Qf=23485 GHz, which is much better than those of mixing BZB powder directly with Ba2Ti9O20 ceramics(εr=34 and Qf=16985 GHz).

Key words: microwave dielectric ceramics;solid state reaction;dielectric property;low-temperature sintered

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