INFLUENCE OF REOXIDATION ON SILICA-CONTAINING BARIUM TITANATE CERAMICS FOR PTCR THERMISTORS PREPARED BY TAPE CASTING

被引：2
作者：
Liu, Jianqiao [1 ,2 ]
Gong, Shuping [2 ]
Jin, Guohua [1 ]
Zhai, Zhaoxia [1 ]
Zhao, Yuqing [1 ]
Luo, Chuyao [1 ]
Jiang, Qiuxuan [1 ]
机构：
[1] Dalian Maritime Univ, Coll Informat Sci & Technol, Linghai Rd 1, Dalian 116026, Liaoning, Peoples R China
[2] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Luoyu Rd 1037, Wuhan 430074, Hubei, Peoples R China
来源：
CERAMICS-SILIKATY | 2016年 / 60卷 / 01期
关键词：
Barium titanate; PTCR thermistor; Tape casting; Reoxidation; Ferroelectricity; POSITIVE-TEMPERATURE-COEFFICIENT; RESISTIVITY CHARACTERISTICS; BA/TI RATIO;
D O I：
10.13168/cs.2016.0008
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Silica-containing barium-rich BaTiO3 ceramics for thermistors with a positive temperature coefficient of resistance are prepared by a tape-casting technique. The ceramics are sintered in a reducing atmosphere at low temperatures of 1175 - 1225 degrees C. The influences of reoxidation are investigated after the reduced ceramics are reoxidized in air at 700 - 900 degrees C. An anomalous correlation is illustrated between room temperature resistivity and reoxidation temperature. The anomaly results from the ferroelectricity rebuilding mechanism, which includes the spontaneous polarization theory and the ferroelectricity degradation caused by oxygen vacancies. The acceptor-state densities are estimated from the temperature-dependent resistivity. A critical temperature of 750 - 800 degrees C is concluded for the grain boundary reoxidation.
引用
收藏
页码：58 / 62
页数：5
相关论文
共 13 条
[1]  
Hill NA, 2000, J PHYS CHEM B, V104, P6694, DOI 10.1021/jpc00114x
[2]   EXPERIMENTAL EVALUATION OF THE ACCEPTOR-STATES COMPENSATION IN POSITIVE-TEMPERATURE-COEFFICIENT-TYPE BARIUM-TITANATE [J].
HUYBRECHTS, B ;
ISHIZAKI, K ;
TAKATA, M .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (03) :722-724
[3]   SOME ASPECTS OF SEMICONDUCTING BARIUM TITANATE [J].
JONKER, GH .
SOLID-STATE ELECTRONICS, 1964, 7 (12) :895-903
[4]   Grain boundary reoxidation of donor-doped barium titanate ceramics [J].
Langhammer, Hans Theo ;
Makovec, Darko ;
Pu, Yongping ;
Abicht, Hans-Peter ;
Drofenik, Miha .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2006, 26 (14) :2899-2907
[5]  
Lee JK, 2001, J AM CERAM SOC, V84, P1745
[6]   Thermopower in highly reduced n-type ferroelectric and related perovskite oxides and the role of heterogeneous nonstoichiometry [J].
Lee, Soonil ;
Yang, Gaiying ;
Wilke, Rudeger H. T. ;
Trolier-McKinstry, Susan ;
Randall, Clive A. .
PHYSICAL REVIEW B, 2009, 79 (13)
[7]   Effects of SiO2 addition on Ba excessive barium titanate ceramics sintered in reducing atmosphere for laminated PTCR thermistors [J].
Liu, J. Q. ;
Gong, S. P. ;
Quan, L. .
MATERIALS RESEARCH INNOVATIONS, 2014, 18 :172-176
[8]   Reoxidation Effects of Ba-Excessive Barium Titanate Ceramics for Laminated Positive Temperature Coefficient Thermistors [J].
Liu, Jianqiao ;
Gong, Shuping ;
Quan, Lin ;
Chen, Binbin ;
Zhou, Dongxiang .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2012, 95 (05) :1640-1644
[9]   Bandgap Control of the Oxygen-Vacancy-Induced Two-Dimensional Electron Gas in SrTiO3 [J].
Liu, Z. Q. ;
Lu, W. ;
Zeng, S. W. ;
Deng, J. W. ;
Huang, Z. ;
Li, C. J. ;
Motapothula, M. ;
Lu, W. M. ;
Sun, L. ;
Han, K. ;
Zhong, J. Q. ;
Yang, P. ;
Bao, N. N. ;
Chen, W. ;
Chen, J. S. ;
Feng, Y. P. ;
Coey, J. M. D. ;
Venkatesan, T. ;
Ariando .
ADVANCED MATERIALS INTERFACES, 2014, 1 (06)
[10]   Metal-Insulator Transition in SrTiO3-x Thin Films Induced by Frozen-Out Carriers [J].
Liu, Z. Q. ;
Leusink, D. P. ;
Wang, X. ;
Lu, W. M. ;
Gopinadhan, K. ;
Annadi, A. ;
Zhao, Y. L. ;
Huang, X. H. ;
Zeng, S. W. ;
Huang, Z. ;
Srivastava, A. ;
Dhar, S. ;
Venkatesan, T. ;
Ariando .
PHYSICAL REVIEW LETTERS, 2011, 107 (14)
12