晶粒与晶界对BaTiO 3 基陶瓷PTC效应的协同调制研究

Zhimin Li, Aiyu Ding, Maolin Zhang, Yangxi Yan, Zi Yang, Fa Luo

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

摘要

Y and Mn co-doped BaTiO 3 ceramics were prepared by the conventional solid state reaction. The phases, microstructures and composition of the prepared samples were characterized by X-ray diffractometer, scanning electron microscope and energy dispersive spectrometer, respectively, and the electrical parameters were measured. Results show that the room temperature resistance of BaTiO 3 could be effectively decreased by Y doping. However, the excessive Y would segregate at the grain boundary, which weakens the positive temperature coefficient (PTC) effect of BaTiO 3 ceramic, due to the interaction with Mn at the grain boundary. Through the coordinating behavior of grain and grain boundary, the PTC effect of BaTiO 3 ceramic could be efficiently regulated.

投稿的翻译标题 Coordinating Control of the PTC Effect on BaTiO 3 Based Ceramics by Grain and Grain Boundary
源语言繁体中文
页(从-至)2417-2421
页数5
期刊Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
47
8
出版状态已出版 - 1 8月 2018

关键词

  • Coordinating control
  • Doping
  • PTC effect
  • Thermistor

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