Lead-based relaxor ferroelectric ceramics for high performance low firing MLCs

Author

Gui, Zhrlun ; Wang, Yu ; Longtu Li

Author_Institution

Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China

Volume

1

fYear

1996

fDate

18-21 Aug 1996

Firstpage

409

Abstract

The composition, microstructure and dielectric properties of lead-based relaxor ferroelectric ceramics used for high performance low firing MLCs have been studied systematically. The Y5V, Y5U and X7R MLCs fabricated not only exhibit high dielectric constant, low sintering temperature but also have low ageing rate and good biased field behaviour and breakdown strength and excellent reliability comparable to that of normal middle and high sintering temperature MLCs. Low-firing PMN-based MLC has been commercialized and shows a wide application prospect

Keywords

ageing; ceramic capacitors; electric breakdown; ferroelectric capacitors; lead compounds; permittivity; piezoceramics; reliability; sintering; PMN-PbZrO₃NbO₃-PbTiO₃; PbMgO3NbO3-PbZrO3NbO3-PbTiO3; PbMgO₃WO₃ZrO₃TiO₃; X7R; Y5U; Y5V; ageing rate; biased field behaviour; breakdown strength; dielectric constant; dielectric properties; low firing MLCs; multilayer ceramic capacitors; relaxor ferroelectric ceramics; reliability; sintering temperature; Aging; Automotive materials; Ceramics; Dielectric materials; Ferroelectric materials; Firing; High-K gate dielectrics; Microstructure; Relaxor ferroelectrics; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1996. ISAF '96., Proceedings of the Tenth IEEE International Symposium on

Conference_Location

East Brunswick, NJ

Print_ISBN

0-7803-3355-1

Type

conf

DOI

10.1109/ISAF.1996.602777

Filename

602777