Compositionally Graded Multilayer Ceramic Capacitors

TR Number

Date

2017-09-27

Journal Title

Journal ISSN

Volume Title

Publisher

Springer Nature

Abstract

Multilayer ceramic capacitors (MLCC) are widely used in consumer electronics. Here, we provide a transformative method for achieving high dielectric response and tunability over a wide temperature range through design of compositionally graded multilayer (CGML) architecture. Compositionally graded MLCCs were found to exhibit enhanced dielectric tunability (70%) along with small dielectric losses (< 2.5%) over the required temperature ranges specified in the standard industrial classifications. The compositional grading resulted in generation of internal bias field which enhanced the tunability due to increased nonlinearity. The electric field tunability of MLCCs provides an important avenue for design of miniature filters and power converters.

Description

Keywords

effective pyroelectric coefficients, ferroelectric domain formation, high-temperature, computer-simulation, 0.9batio(3)-0.1(bi0.5na0.5)tio3 ceramics, dielectric-properties, behavior, field, batio3, films

Citation