Preparation of MBi4Ti4O15 (M=Ba,Ca) Thick Films by Screen Printing

Autor: Futakuchi, Tomoaki, Kakuda, Tatsunori, Sakai, Yuichi, Kakiuchi, Shigeki, Adachi, Masatoshi
Zdroj: Key Engineering Materials; September 2008, Vol. 388 Issue: 1 p187-190, 4p
Abstrakt: MBi4Ti4O15 (M=Ba,Ca) thick films were prepared by screen printing and firing using Pt bottom electrodes and ZrO2 substrates. Screen-printable pastes were prepared by kneading the MBi4Ti4O15 powder in a three-roll mill with an organic vehicle. The microstructures and electric properties of the thick films were examined in comparison with bulk ceramics. The remanent polarization of 6.2 9C/cm2 and coercive field of 130kV/cm were obtained for the CaBi4Ti4O15 thick film fired at 1130OC. The Curie points of MBi4Ti4O15 (M=Ba,Ca) thick films from dielectric peaks were 450OC and 790 OC for M=Ba and M= Ca.
Databáze: Supplemental Index