Increased thermal stability by the addition of ZrO2 into a 0.48Ba(Zr0.2Ti0.8)O3-0.52(Ba0.7Ca0.3)TiO3 matrix material

Martin A, Kato N, Fey T, Webber KG, Kakimoto KI (2024)

Publication Type: Journal article

Publication year: 2024

Journal

Japanese Journal of Applied Physics Japan Society of Applied Physics

Book Volume: 63

Article Number: 09SP02

Journal Issue: 9

DOI: 10.35848/1347-4065/ad6c58

Abstract

Ferroelectric ceramics based on x(Ba0.7Ca0.3)TiO3-(1−x)Ba(Zr0.2Ti0.8)O3 (BCZT100x) are regarded as promising lead-free candidates for piezoelectric applications. Heightened piezoelectric properties are found around specific temperatures, i.e. polymorphic phase boundaries. As broader thermal stability is required for certain applications, this study aims to increase the diffusiveness of the phase transitions by introducing ZrO2 as a filler material into a BCZT52 matrix. The diffuseness factor of the Curie point was evaluated and increased from approximately 1.60 to 1.88 with the addition of 4 vol% ZrO2 to BCZT52. As a result, samples with an additional 2 vol% showed the highest thermal stability in the temperature range between 25 °C and 70 °C. Here, the large signal piezoelectric strain coefficient d 33 * degraded only by 18%, compared to 30% in BCZT52. This increase was caused by the inhomogeneous distribution of Zr within the sample.

Authors with CRIS profile

Tobias Fey Lehrstuhl für Glas und Keramik Kyle Grant Webber Professur für Werkstoffwissenschaften (Funktionskeramik)

Involved external institutions

Nagoya Institute of Technology / 名古屋工業大学 Nagoya Kōgyō Daigaku JP Japan (JP)

How to cite

APA:

Martin, A., Kato, N., Fey, T., Webber, K.G., & Kakimoto, K.I. (2024). Increased thermal stability by the addition of ZrO2 into a 0.48Ba(Zr0.2Ti0.8)O3-0.52(Ba0.7Ca0.3)TiO3 matrix material. Japanese Journal of Applied Physics, 63(9). https://doi.org/10.35848/1347-4065/ad6c58

MLA:

Martin, Alexander, et al. "Increased thermal stability by the addition of ZrO2 into a 0.48Ba(Zr0.2Ti0.8)O3-0.52(Ba0.7Ca0.3)TiO3 matrix material." Japanese Journal of Applied Physics 63.9 (2024).

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