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• 作者：Yang Wan (1)
  Ying Li (1)
  Yongquan Guo (1)
  Qiaoji Zheng (1)
  Xiaochun Wu (1)
  Chenggang Xu (1)
  Dunmin Lin (1)
  
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2014
• 出版时间：March 2014
• 年：2014
• 卷：25
• 期：3
• 页码：1534-1541
• 全文大小：2,294 KB
• 作者单位：Yang Wan (1)
  Ying Li (1)
  Yongquan Guo (1)
  Qiaoji Zheng (1)
  Xiaochun Wu (1)
  Chenggang Xu (1)
  Dunmin Lin (1)
  
  1. Visual Computing and Virtual Reality Key Laboratory of Sichuan Province, College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
  
• ISSN：1573-482X

文摘

(1?x)BiFeO3–xBa0.6(Bi0.5K0.5)0.4TiO3?+?1?mol% MnO2 lead-free multiferroic ceramics were fabricated by a conventional ceramic technique and the effects of Ba0.6(Bi0.5K0.5)0.4TiO3 doping and sintering temperature on the microstructure, ferroelectric, piezoelectric and ferromagnetic properties of the ceramics were studied. All the ceramics show good electric insulation with the resistivity values of 1.97?×?109-.20?×?1010?Ω?cm. After the addition of Ba0.6(Bi0.5K0.5)0.4TiO3, two dielectric anomalies are observed at high temperatures (T 1?~?453-10?°C and T 2?~?716-55?°C, respectively). The ceramic with x?=?0.275 exhibits the optimum piezoelectricity (d 33?=?48?pC/N and k p?=?13.6?%, respectively). The Ba0.6(Bi0.5K0.5)0.4TiO3 doping and the increasing in sintering temperature improve significantly the ferromagnetic properties of the ceramics. The ceramic with x?=?0.25 sintered at 1,040?°C gives the optimum remnant magnetization M r of 0.13?emu/g.