Influence of Ba/Ti ratio on the positive temperature coefficient of resistivity characteristics of Ca-doped semiconducting BaTiO3 fired in reducing atmosphere and reoxidized in air

Journal of the American Ceramic Society

Volumn 90, Issue 6, 2007, Pages 1817-1821

  Niimi, Hideaki ^a   Mihara, Kenjiro ^a   Sakabe, Yukio ^a   Kuwabara, Makoto ^b  

^a MURATA MANUFACTURING CO LTD   (Japan)

^b KYUSHU UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

CALCIUM; CERAMIC MATERIALS; DOPING (ADDITIVES); ELECTRIC CONDUCTIVITY; HIGH TEMPERATURE OPERATIONS; OXIDATION;

REDUCING ATMOSPHERE; TEMPERATURE COEFFICIENT OF RESISTIVITY;

BARIUM TITANATE;

EID: 34249857278     PISSN: 00027820     EISSN: 15512916     Source Type: Journal    
DOI: 10.1111/j.1551-2916.2007.01701.x     Document Type: Article

References (14)

1. W. Heywang Resistivity Anomaly in Donor Doped Barium Titanate J. Am. Ceram. Soc., 47 [10] 484 90 (1964).
2. A. Hasegawa, S. Fujitu H. Yanagida Adsorbed Oxygen and PTCR Effect of Semiconducting Porous Barium Titanate J. Ceram. Soc. Jpn., 97 [5] 549 53 (1989) [in Japanese].
3. M. Nishii The Present of Semiconducting BaTiO Erektoroniku Seramikusu, 19, 22 (1988) [in Japanese].
4. H. Niimi PTC Thermistor Fine Ceram. Rep., 13 [5] 12 125 (1995) [in Japanese].
5. S. Tashiro, A. Kanda S. Igarashi PTCR Characteristics of Semiconducting (Ba,Ca)TiO3 Ceramics Fired in Reducing-Reoxidizing Atmosphere J. Ceram. Soc. Jpn., 102 [3] 284 89 (1994) [in Japanese].
6. A. Kanda, S. Tashiro H. Igarashi Effect of Firing Atmosphere on Electrical Properties of Multilayer Semiconducting Ceramics Having Positive Temperature Coefficient of Resistivity and Ni-Pd Internal Electrodes Jpn. J. Appl. Phys., 33 [9B] 5431 34 (1994).
7. T. Takahashi, Y. Nakano N. Ichinose Influence of Reoxidation on PTC Effect of Porous BaTiO3 J. Ceram. Soc. Jpn., 98 [8] 879 84 (1990) [in Japanese].
8. H. Ueoka Some Aspects on the Chemical Properties of PTC Thermister p. 79 in Titabarikei-Handoutai, 3rd edition, Gakkennsya, Tokyo, 1991 [in Japanese].
9. T. Sabri, M. Hori, M. Asano, H. Haneda, J. Tanaka S. Shirasaki Oxygen Diffusion in BaTiO3 PTC J. Ceram. Soc. Jpn., 98 [5] 510 4 (1990) [in Japanese].
10. A. B. Alles V. L. Burdick Grain Boundary Oxidation in PTCR Barium Titanate Thermistors J. Am. Ceram. Soc., 76 [2] 401 8 (1993).
11. H. Cheng Modeling of Electrical Response for Semiconducting Ferrite J. Appl. Phys., 56 [6] 1831 7 (1984).
12. M. Chu, J. Bultitude, V. Ganine A. Rae, Microstructure Analysis of MLCs With Ni Electrodes. Advances in Dielectric Ceramic Materials, p. 415. American Ceramic Society, Westerville, OH, 1998.
13. Y. Sakabe, K. Minai K. Wakino High Dielectric Constant Ceramics for Base Metal Monolithic Capacitors Jpn. J. Appl. Phys., 20 (Suppl.) 147 50 (1981).
14. Y. Sakabe Dielectric Materials for Base-Metal Multilayer Ceramics Capacitor Ceram. Bull., 66 [9] 1338 (1987).