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Relationship between Liquid Phase Content and the Orientation of PMNT Ceramics by TGG Method

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【作者】 曹明贺； 刘韩星；

【Author】 CAO Minghe, LI Dongliang, HAO Hua, LIU Hanxing* (State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China)

【机构】 State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology； State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology； Wuhan 430070 China；

【摘要】 The effects of glass frit on the sintering and electric properties of PMN-PT textured ceramics were investigated. The glass frits, including PbO, Bi2O3 and ZnO, were selected since liquid phase sintering lowered the PMN-PT sintering temperature. The piezoelectric properties of PMN-PT ceramics with glass frit addition are strongly dependent on the densification. The addition of glass frits into PMN-PT matrix reduced the sintering temperature to 1 100 ℃ instead of 1 150 ℃ for samples without glass. The piezoelectric coefficients (d33) of PMN-PT textured ceramics achieved 568 pc/N with 1 wt% excess PbO.

【Abstract】 The effects of glass frit on the sintering and electric properties of PMN-PT textured ceramics were investigated. The glass frits, including PbO, Bi2O3 and ZnO, were selected since liquid phase sintering lowered the PMN-PT sintering temperature. The piezoelectric properties of PMN-PT ceramics with glass frit addition are strongly dependent on the densification. The addition of glass frits into PMN-PT matrix reduced the sintering temperature to 1 100 ℃ instead of 1 150 ℃ for samples without glass. The piezoelectric coefficients (d33) of PMN-PT textured ceramics achieved 568 pc/N with 1 wt% excess PbO.

【关键词】 texture； liquid phase； piezoelectric property； templated grain grouth(TGG)；
【Key words】 texture； liquid phase； piezoelectric property； templated grain grouth(TGG)；
【基金】 Supported by the National Natural Science Foundation of China (No.50502027);the 973 Project (No. 2002CB613303)
  • 【文献出处】 Journal of Wuhan University of Technology(Materials Science Edition) ,武汉理工大学学报(材料科学版)(英文版) , 编辑部邮箱 ,2007年01期
  • 【分类号】TQ174
  • 【下载频次】70
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