Alkali volatilization of (Li,Na,K)NbO3-based piezoceramics and large-field electrical and mechanical properties

Nishiyama H, Martin A, Hatano K, Kishimoto S, Sasaki N, Webber KG, Kakimoto KI (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Journal of the Ceramic Society of Japan Ceramic Soc of Japan

Book Volume: 129

Pages Range: 127-134

Journal Issue: 3

DOI: 10.2109/jcersj2.20201

Abstract

While lead-free (Li,Na,K)NbO3 piezoceramics have a high Curie temperature (TC > 400 °C) and an excellent piezoelectric constant (d33 > 200 pC/N), the process window regarding the sintering temperature and dwelling time is narrow. Inappropriate sintering conditions can induce the volatilization of A-site alkali ions, leading to a deterioration in dielectric and piezoelectric properties. However, the effect of alkali volatilization on the ferroelastic properties is still uncertain. In this study, (Li,Na,K)NbO3 piezoceramics were deliberately exposed to the sintering temperature for varying times to compare the susceptibility of the effect of alkali volatilization on the ferroelastic properties and compared to changes in the ferroelectric and ferroelastic and dielectric properties.

Authors with CRIS profile

Kyle Grant Webber Professur für Werkstoffwissenschaften (Funktionskeramik)

Additional Organisation(s)

Graduiertenkolleg 2495 Energiekonvertierungssysteme: von Materialien zu Bauteilen (Energy Conversion Systems: From Materials to Devices)

Involved external institutions

Taiyo Yuden / 太陽誘電株式会社 JP Japan (JP) Nagoya Institute of Technology / 名古屋工業大学 Nagoya Kōgyō Daigaku JP Japan (JP)

How to cite

APA:

Nishiyama, H., Martin, A., Hatano, K., Kishimoto, S., Sasaki, N., Webber, K.G., & Kakimoto, K.I. (2021). Alkali volatilization of (Li,Na,K)NbO3-based piezoceramics and large-field electrical and mechanical properties. Journal of the Ceramic Society of Japan, 129(3), 127-134. https://dx.doi.org/10.2109/jcersj2.20201

MLA:

Nishiyama, Hiroshi, et al. "Alkali volatilization of (Li,Na,K)NbO3-based piezoceramics and large-field electrical and mechanical properties." Journal of the Ceramic Society of Japan 129.3 (2021): 127-134.

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