Electrical properties of Y- and Mn-doped BaTiO3-based PTC ceramics

被引：31

作者：

Ding, S. W. ^{[1
]}

Jia, G. ^{[1
]}

Wang, J. ^{[1
]}

He, Z. Y. ^{[1
]}

机构：

[1] Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2008年 / 34卷 / 08期

关键词：

Preparation; BaTiO3; Donor and acceptor doping; Sintering conditions;

D O I：

10.1016/j.ceramint.2007.07.023

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：

A series of nano-Ba0.85-xYxSr0.07Ca0.08MnyTi1-yO3(0.7% <= x <= 1.2%, 0% <= y <= 0.06%) solid solutions have been synthesized by solid-state reaction at low temperature. The experiment of doping different content Y and Mn shows that the room-temperature resistance decreases by doping Y, and the resistance jump increases dramatically by doping Mn. The optimum donor level increases significantly with increasing acceptor level. The room-temperature resistance changes as a U-type curve with an increase of Mn additive concentration while the resistance jump is on the reverse. Meanwhile, the influence of sintering temperature and soaking time on property of PTC materials was discussed. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：2007 / 2010

页数：4

共 18 条

[1] THE EFFECT OF MN ON THE POSITIVE TEMPERATURE-COEFFICIENT OF RESISTANCE CHARACTERISTICS OF DONOR DOPED BATIO3 CERAMICS [J].

ALALLAK, HM ;

BRINKMAN, AW ;

RUSSELL, GJ ;

WOODS, J .

JOURNAL OF APPLIED PHYSICS, 1988, 63 (09) :4530-4535

[2] Effect of isovalent Ba-site substitutions on the properties of (Ba1-x-yMyYx)TiO3 (M = Ca, Sr, Pb) PTCR ceramics [J].

Belous, AG ;

V'yunov, OI ;

Kovalenko, LL ;

Buscaglia, V ;

Viviani, M ;

Nanni, P .

INORGANIC MATERIALS, 2003, 39 (02) :133-138

[3]

BLOUS A, 2004, MAT RES B, V39, P297

[4]

CAO MH, 2000, CHIN ELECT COMP MAT, V19, P18

[5] A miniature PTC thermistor based sensor element fabricated by tape casting technique [J].

Chatterjee, S ;

Sengupta, K ;

Maiti, HS .

SENSORS AND ACTUATORS B-CHEMICAL, 1999, 60 (2-3) :155-160

[6] Grain-boundary surface states of (Ba, Pb)TiO3 positive temperature coefficient ceramics doped with different additives and its influence on electrical properties [J].

Chen, LF ;

Tseng, TY .

IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY PART A, 1996, 19 (03) :423-430

[7]

Gillot C, 1997, J AM CERAM SOC, V80, P1043, DOI 10.1111/j.1151-2916.1997.tb02944.x

[8] BARIUMTITANAT ALS SPERRSCHICHTHALBLEITER [J].

HEYWANG, W .

SOLID-STATE ELECTRONICS, 1961, 3 (01) :51-58

[9] Synthesis of CuO nanometer powder by one step solid state reaction at room temperature [J].

Jia, DZ ;

Yu, JQ ;

Xia, X .

CHINESE SCIENCE BULLETIN, 1998, 43 (07) :571-573

[10] SOME ASPECTS OF SEMICONDUCTING BARIUM TITANATE [J].

JONKER, GH .

SOLID-STATE ELECTRONICS, 1964, 7 (12) :895-903

← 1 2 →