Work

Effect of BaZrO3 Addition on the Frequency and Temperature Dependent Dielectric Properties of BaTiO3-Based Ceramics

Year: 2026

Type: article

Abstract: The effects of BaZrO₃ addition on the structural and electrical properties of BaTiO₃-based base-metal-electrode (BME) multilayer ceramic capacitor (MLCC) ceramics were investigated. Dielectric compositions containing 0–9 wt% BaZrO₃ were fabricated using a conventional MLCC process, and their crystal structure, dielectric behavior, temperature stability, frequency stability, and insulation resistance were evaluated. X-ray diffraction and Rietveld refinement confirmed the formation of a single-phase perovskite structure for all compositions. Increasing BaZrO₃ content resulted in a systematic shift of diffraction peaks toward lower angles and an increase in unit-cell volume from 64.61 to 66.05 Å³, indicating successful Zr incorporation into the BaTiO₃ lattice. The dielectric permittivity increased with BaZrO₃ addition and reached a maximum value of approximately 2,110 at 6 wt%, while dielectric loss decreased significantly. Capacitance stability against temperature and frequency variations was markedly improved with increasing BaZrO₃ content. In addition, insulation resistance increased substantially over the investigated temperature range, demonstrating enhanced electrical reliability.

Source: Journal of the Korean Institute of Electrical and Electronic Material Engineers

DOI: 10.4313/jeem.2026.39.5.4

Authors: Won-Su Lee, Jong Kyu Lee, Moon-Taek Cho, Jung Rag Yoon

Institution: Daewon University College

Language: English

Topic: Dielectric properties of ceramics

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

Funder: Ministry of Trade, Industry and Energy

Award: G5601463620