Chemical heterogeneity-driven diffused phase transitions in Ba(Zr,Ti)O3 ceramics: Role of incomplete solid-state reactions

Nozaki T, Xie S, Eckstein U, Martin A, Webber KG, Nakayama T, Kakimoto K (2025)

Publication Type: Journal article

Publication year: 2025

Journal

Book Volume: 133

Pages Range: 750-758

Journal Issue: 12

DOI: 10.2109/jcersj2.25105

Abstract

Chemical heterogeneity in Ba(Zr0.1Ti0.9)O3 (BZT) ceramics was formed by an incomplete solid-state reaction. XRD and SEM-EDS analyses revealed the calcined powder contained a mixture of BZT particles with varying concentrations of Zr. Such particles inhibited grain growth and resulted in diffuse phase transition in BZT ceramics due to higher grain-boundary density and chemical heterogeneity. As the chemical heterogeneity was reduced by increasing calcination and sintering temperatures, the grain size increased from 1.65 to 38.5 μm, resulting in their dielectric behavior changing from diffuse phase transition to a proper ferroelectric. These results indicate that the incomplete solid-state reaction plays an important role in microstructure evolution and electrical properties in BZT-based ceramics synthesized via solid-state reaction involving ZrO2

Authors with CRIS profile

Involved external institutions

Nagaoka University of Technology / 長岡技術科学大学 Japan (JP)

How to cite

APA:

Nozaki, T., Xie, S., Eckstein, U., Martin, A., Webber, K.G., Nakayama, T., & Kakimoto, K. (2025). Chemical heterogeneity-driven diffused phase transitions in Ba(Zr,Ti)O3 ceramics: Role of incomplete solid-state reactions. Journal of the Ceramic Society of Japan, 133(12), 750-758. https://doi.org/10.2109/jcersj2.25105

MLA:

Nozaki, Takumi, et al. "Chemical heterogeneity-driven diffused phase transitions in Ba(Zr,Ti)O3 ceramics: Role of incomplete solid-state reactions." Journal of the Ceramic Society of Japan 133.12 (2025): 750-758.

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