Paper Title:
The PTCR Performance of Nb-Doped BaTiO3-NBT Ceramics
  Abstract

In this paper, Nb-doped BaTiO3-(Na0.5Bi0.5)TiO3 (BBNT-Nb) based PTCR ceramic material has been prepared using high purity Nb2O5, Bi2O3, Na2CO3, TiO2 and BaTiO3 powders as starting materials, and its structural and electrical properties are investigated. The results indicated that the Nb2O5 dopant is helpful not only to promote the formation of tetragonal BBNT structure without any second phase, but also to decrease the room-temperature resistivity. For the 0.10at% Nb-doped BBNT material with BNT content 35mol%, the properties of room-temperature resistance of 104Ω·cm, temperature coefficient (αk) of 6.3%/°C, PTCR anomaly lg(Rmax/Rmin) of 3.6 and Curie temperature (Tc) of 193°C are obtained.

  Info
Periodical
Advanced Materials Research (Volumes 299-300)
Edited by
Jianzhong Wang and Jingang Qi
Pages
512-515
DOI
10.4028/www.scientific.net/AMR.299-300.512
Citation
L. Z. Li, X. W. Zhu, T. Z. Xu, M. Gong, W. Z. Jiang, X. Zhou, "The PTCR Performance of Nb-Doped BaTiO3-NBT Ceramics", Advanced Materials Research, Vols. 299-300, pp. 512-515, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ji Gui Cheng, Ping Shi, Hong Hai Zhong, Bu Mei Wang
Abstract:Perovskite Sm1-xSrxCoO3 ceramics have been successfully prepared by gelcasting from oxides and carbonate powders, which were characterized...
444
Authors: Qiu Sun, Fu Ping Wang, Zhao Hua Jiang
Abstract:Ferroelectric lead zirconate titanate(PZT)thin films have attracted great attention because of their potential applications in memory...
223
Authors: Jun Hu, Wang Chen Long, Jin Liang He, Jun Liu, Feng Chao Luo
Abstract:The additive of Al(NO3)3 has been doped into ZnO varistors in order to reduce their residual voltages. However, the leakage currents of...
386
Authors: Sen Wang, Zhi Hui Li, Xin Liu, Huan Zhang
Abstract:Anti–reducing effect of CaO in barium titanate based ceramic materials sintered at reducing atmosphere and the structure development of the...
2457
Authors: Yun Yi Wu, Lei Wang, Zhi Qiang Hua, Tao Li
Chapter 4: Trends in Materials and Manufacturing
Abstract:A series of ferroelectric BIT ceramics with various V2O5 dopants were prepared by conventional solid-state route. The...
333