(Ba,Sr)TiO 3 계 세라믹스의 PTCR 특성에 미치는 Sb 2 O 3 의 영향

이호원; 김영민; 어순철; 김일호; Ho-Won Lee; Young-Min Kim; Soon-Chul Ur; Il-Ho Kim

Korean Journal of Materials Research, Vol.14, No.2, 115-120, February, 2004

DOI10.3740/MRSK.2004.14.2.115 Export Citation

(Ba,Sr)TiO 3 계 세라믹스의 PTCR 특성에 미치는 Sb 2 O 3 의 영향

Effects of Sb 2 O 3 on the PTCR Properties of (Ba,Sr)TiO 3 -based Ceramics

이호원, 김영민, 어순철 ¹, 김일호 ^{1, †}

고려전자(주) 소재개발과
¹충주대학교 신소재공학과/나노기술연구소

Ho-Won Lee, Young-Min Kim, Soon-Chul Ur¹, and Il-Ho Kim^{1, †}

Dept. of Materials Development, Corea Electronics Corporation(CEC), Korea
¹Department of Materials Science and Engineering/NT Lab., Chungju National University, Korea

E-mail:

Perovskite barium-strontium titanate, (Ba,Sr)TiO 3 was prepared and effects of Sb 2 O 3 additives on its PTCR properties were investigated. The(Ba,Sr)TiO 3 with 0.05~0.25 mol% Sb 2 O 3 showed semiconducting PTCR behavior and anomalous grain growth was also observed when it was sintered above 1330 ? C . It was considered that charge compensation by doping 8b203 as well as abnormal grain growth by sintering lead to resistivity reduction from insulating to semiconducting transition.

Keywords:PTCR;(Ba,Sr)TiO 3

[References]

Haayman PW, Dam RD, Klasen HA, German Patent 929350 (1955) (1955)
Goodmann G, J. Am. Ceram. Soc., 46, 48 (1963)
Brzozowski E, Castro MS, Ceram. Int'l., 26, 265 (2000)
Lin MH, Lu HY, Mater. Sci. Eng. A, 323, 167 (2002)
Wang XX, Chan HLW, Pang GKH, Choy CL, Mater. Sci. Eng. B, 100, 286 (2003)
Varatharajan R, Jayavel R, Subramanian C, Ramasamy P, Mater. Res. Bull., 35(4), 603 (2000)
Sasaki Y, Fujii I, Morii K, Matsui T, Mater. Lett., 26, 265 (1996)
Langhammer HT, Polity A, FeIgner KH, Muller T, Abicht HP, Mater. Lett., 26, 205 (1996)
Chang HY, Liu KS, Lin IN, J. European Ceram. Soc., 16, 63 (1996)
Zhang L, Zhong WL, Wang CL, Zhang PL, Wang YG, Solid State Comm., 107, 769 (1998)
Raymond MV, Smyth DM, J. Phys. Chern. Solids, 57, 1507 (1996)
Niepce JC, Electroceramics, 4, 29 (1994)
Urek S, Drofenik M, J. European Ceram. Soc., 19, 913 (1999)
Langhammer HT, Muller T, Bottcher R, Abicht HP, Solid State Sci., 5, 965 (2003)

[Related Articles]

[1] Haayman PW, Dam RD, Klasen HA, German Patent 929350 (1955) (1955)

[2] Goodmann G, J. Am. Ceram. Soc., 46, 48 (1963)

[3] Brzozowski E, Castro MS, Ceram. Int'l., 26, 265 (2000)

[4] Lin MH, Lu HY, Mater. Sci. Eng. A, 323, 167 (2002)

[5] Wang XX, Chan HLW, Pang GKH, Choy CL, Mater. Sci. Eng. B, 100, 286 (2003)

[6] Varatharajan R, Jayavel R, Subramanian C, Ramasamy P, Mater. Res. Bull., 35(4), 603 (2000)

[7] Sasaki Y, Fujii I, Morii K, Matsui T, Mater. Lett., 26, 265 (1996)

[8] Langhammer HT, Polity A, FeIgner KH, Muller T, Abicht HP, Mater. Lett., 26, 205 (1996)

[9] Chang HY, Liu KS, Lin IN, J. European Ceram. Soc., 16, 63 (1996)

[10] Zhang L, Zhong WL, Wang CL, Zhang PL, Wang YG, Solid State Comm., 107, 769 (1998)

[11] Raymond MV, Smyth DM, J. Phys. Chern. Solids, 57, 1507 (1996)

[12] Niepce JC, Electroceramics, 4, 29 (1994)

[13] Urek S, Drofenik M, J. European Ceram. Soc., 19, 913 (1999)

[14] Langhammer HT, Muller T, Bottcher R, Abicht HP, Solid State Sci., 5, 965 (2003)