Grain-boundary resistivity in barium titanate ceramic positive temperature coefficient sensors

H. Wong; P. G. Han; M. C. Poon; Y. Y. Chen; X. R. Zheng

Grain-boundary resistivity in barium titanate ceramic positive temperature coefficient sensors

H. Wong, P. G. Han, M. C. Poon, Y. Y. Chen, X. R. Zheng

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

Abstract

Several positive temperature coefficient resistors (PTCR's) are prepared using commercially available BaTiO₃ powders with different additives (Y, Mn, Nb, AST). We found that the different additives will result in different grain sizes, grain surface and porosity. However, the temperature-dependent resistivities of these samples do not have significant difference. A new model is proposed to explain this discrepancy and the three-segment characteristics in the PTCR.

Original language	English
Pages	153-156
Number of pages	4
State	Published - 1997
Externally published	Yes
Event	Proceedings of the 1997 IEEE Hong Kong Electron Devices Meeting - Hong Kong, Hong Kong Duration: 30 Aug 1997 → 30 Aug 1997

Conference

Conference	Proceedings of the 1997 IEEE Hong Kong Electron Devices Meeting
City	Hong Kong, Hong Kong
Period	30/08/97 → 30/08/97

Cite this

@conference{5ed55c2fdcda4951a50b3f9128469fd4,

title = "Grain-boundary resistivity in barium titanate ceramic positive temperature coefficient sensors",

abstract = "Several positive temperature coefficient resistors (PTCR's) are prepared using commercially available BaTiO3 powders with different additives (Y, Mn, Nb, AST). We found that the different additives will result in different grain sizes, grain surface and porosity. However, the temperature-dependent resistivities of these samples do not have significant difference. A new model is proposed to explain this discrepancy and the three-segment characteristics in the PTCR.",

author = "H. Wong and Han, \{P. G.\} and Poon, \{M. C.\} and Chen, \{Y. Y.\} and Zheng, \{X. R.\}",

year = "1997",

language = "English",

pages = "153--156",

note = "Proceedings of the 1997 IEEE Hong Kong Electron Devices Meeting ; Conference date: 30-08-1997 Through 30-08-1997",

}

TY - CONF

T1 - Grain-boundary resistivity in barium titanate ceramic positive temperature coefficient sensors

AU - Wong, H.

AU - Han, P. G.

AU - Poon, M. C.

AU - Chen, Y. Y.

AU - Zheng, X. R.

PY - 1997

Y1 - 1997

N2 - Several positive temperature coefficient resistors (PTCR's) are prepared using commercially available BaTiO3 powders with different additives (Y, Mn, Nb, AST). We found that the different additives will result in different grain sizes, grain surface and porosity. However, the temperature-dependent resistivities of these samples do not have significant difference. A new model is proposed to explain this discrepancy and the three-segment characteristics in the PTCR.

AB - Several positive temperature coefficient resistors (PTCR's) are prepared using commercially available BaTiO3 powders with different additives (Y, Mn, Nb, AST). We found that the different additives will result in different grain sizes, grain surface and porosity. However, the temperature-dependent resistivities of these samples do not have significant difference. A new model is proposed to explain this discrepancy and the three-segment characteristics in the PTCR.

UR - https://www.scopus.com/pages/publications/0031348826

M3 - Paper

AN - SCOPUS:0031348826

SP - 153

EP - 156

T2 - Proceedings of the 1997 IEEE Hong Kong Electron Devices Meeting

Y2 - 30 August 1997 through 30 August 1997

ER -

Grain-boundary resistivity in barium titanate ceramic positive temperature coefficient sensors

Abstract

Conference

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