Ultralow sintering temperature and piezoelectric properties of Bi(Zn1/2Ti1/2)O3−BiScO3−PbTiO3 for low‐temperature co‐firing applications

Bi(Zn1/2Ti1/2)O3−BiScO3−PbTiO3 (BZT−BS−PT) high Curie temperature piezoelectric ceramics were synthesized by the conventional solid‐state reaction method. Systematical investigations on the sintering, piezoelectric, and dielectric properties of the piezoceramics have been conducted. It was found tha...

Full description

Saved in:
Bibliographic Details
Published inJournal of the American Ceramic Society Vol. 105; no. 5; pp. 3438 - 3446
Main Authors Pang, Shuting, Wang, Yiping, Yang, Ying, Zhang, Jiyang, Hu, Querui, Shi, Jingjing, Li, XiongJie
Format Journal Article
LanguageEnglish
Published Columbus Wiley Subscription Services, Inc 01.05.2022
Subjects
BiScO3(PbTiO3
Bismuth
Composition
Curie temperature
Dielectric properties
high Curie temperature
LTCC
Melting points
Multilayers
Piezoelectric ceramics
Sintering
Sintering aids
Solid solutions
Temperature
Ternary systems
Online AccessGet full text

Cover

More Information
Summary:Bi(Zn1/2Ti1/2)O3−BiScO3−PbTiO3 (BZT−BS−PT) high Curie temperature piezoelectric ceramics were synthesized by the conventional solid‐state reaction method. Systematical investigations on the sintering, piezoelectric, and dielectric properties of the piezoceramics have been conducted. It was found that the sintering temperature could be remarkably depressed by varying the compositions in BZT−BS−PT systems. For composition of 11BZT−34BS−55PT ceramic, the sintering temperature is even lowered down to 750°C without any extra additions of sintering aids. Meanwhile, the ceramic sintered at this ultralow temperature presents dense microstructure with relative density up to 97%, as well as optimal properties of piezoelectric coefficient d33 of 336 pC/N and Curie temperature of 415°C. The mechanism of low sintering temperature may be ascribed to the low melting point bismuth‐based components in BZT−BS−PT solid solutions. Furthermore, 11BZT−34BS−55PT multilayer ceramics have been co‐fired at 750°C with Ag internal electrodes. The dense structures, low cost, and optimal comprehensive properties of the co‐fired multilayers illustrate obvious advantages of the ultralow sintering temperature in LTCC devices, implying promising applications of this Bi(Zn1/2Ti1/2)O3−BiScO3−PbTiO3 high Curie temperature ternary system.
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.18328