English

应用科学学报 ›› 1986, Vol. 4 ›› Issue (4): 356-360.

• 论文 • 上一篇    下一篇

改性锆酸锶陶瓷的制备及电导

王评初, 曾绍先   

  1. 中国科学院上海硅酸盐研究所
  • 收稿日期:1983-06-22 修回日期:1984-05-14 出版日期:1986-12-31 发布日期:1986-12-31

PREPARATION AND ELECTRIC CONDUCTIVITY OF MODIFIED SrZrO3 CERAMICS

WANG PINGCHU, ZENG SHAOXIAN   

  1. Shanghai Institute of Ceramics, Academia Sinica
  • Received:1983-06-22 Revised:1984-05-14 Online:1986-12-31 Published:1986-12-31

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摘要： 本工作研究了添加Al2O3、CaO、Cr2O3和Fe2O3的SrZrO3陶瓷的制备工艺及杂质对SrZrO3电阻率的影响.加有添加剂的SrZrO3陶瓷可沿用普通陶瓷工艺,于1750-1800℃烧成.适当的添加剂可使SrZrO3的电导激活能大幅度降低,从而有效地降低电阻率.对于组成为90%SrZrO3+5%Cr2O3+4%CaO十1%Al2O3(重量比)的样品,电导激活能为17.6kcal/mol;对组成为SrO+(ZrO2)0.9+(Fe2O3)0.05的样品,电导激活能为4.53kcal/mol.上述组分的陶瓷具有电导率较高、易于烧结等优点,有希望作为高温导电材料使用.

Abstract: The preparation method of SrZrO3 ceramics doped with Al2O3, CaO, Cr2O3 and Fe2O3, and the influence of the dopants on the conductivity of the samples were studied. The samples were sintered with conventional oeramic technique at 1750-1800℃. For 90% SrZrO3+5% Cr2O3+4% CaO+1% Al2O3 (wt) composition, the activation energy of conduction is about 17.6 kcal/mol, and for SrO+ (ZrO2) 0.9+ (Fe2O3) 0.05 composition, about 4.53kcal/mol. They have higher conductivity and can be easily sintered. They are promising for high temperature applications.