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http://dx.doi.org/10.4313/JKEM.2003.16.4.304

Structural and Dielectric Properties of BSCT Thick films with Various Sintering Temperature  

이성갑 (서남대학교 전기전자멀티미디어공학부)
이영희 (광운대학교 반도체 및 신소재공학과)
이상헌 (선문대학교 전자정보통신공학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.16, no.4, 2003 , pp. 304-310 More about this Journal
Abstract
(Ba$\sub$0.6-x/Sr$\sub$0.4/Ca$\sub$x/)TiO$_3$(BSCT) (x=0.10, 0.15, 0.20) powder, prepared by the sol-Bel method, were mixed with organic binder and then BSCT thick films were fabricated by the screen printing techniques on alumina substrates using the BSCT paste. The structural and the dielectric Properties were investigated for various composition ratio and sintering temperature. The second phase appeared in BSCT(40/40/20) thick film sintered at 1450$^{\circ}C$. BSCT thick film thickness, obtained by four printings, was approximately 110∼120$\mu\textrm{m}$. The Curie temperature and dielectric constant at room temperature were decreased with increasing Ca content. The relative dielectric constant, dielectric loss and tunability of the BSCT(50/40/10) specimen, which was sintered at 1420$^{\circ}C$ and measured at 1MHz, were about 910, 0.46% and 9.28% at 5㎸/cm, respectively.
Keywords
Barium strontium calcium titanate ceramics; Thick film; Dielectric properties; Tunability;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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