Enhanced grain growth and dielectric properties in aerosol deposited BaTiO3

Bentzen M, Maier J, Eckstein U, He J, Henss A, Khansur NH, Glaum J (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Journal of the European Ceramic Society Elsevier

DOI: 10.1016/j.jeurceramsoc.2023.03.012

Abstract

Piezoelectric ceramics are envisioned as cell stimulating materials for in-vivo, load-bearing applications. To compensate for their brittle nature developing ceramic films on medically accredited metals is a promising approach. However, high temperature consolidation is often required to achieve highly dense ceramics with suitable functional properties, which can compromise the metal substrate integrity. With aerosol deposition highly dense thick films can be produced at room temperature. Still, an annealing step is required to enhance the functional properties of piezoelectric ceramics. Thermal annealing of dense, aerosol deposited BaTiO3 thick films on 304SUS stainless steel gave a clear enhancement of the dielectric properties. An increase in saturation polarization and the adoption of ferroelectric hysteresis at 750 °C coincided with a significant reduction in mechanical properties. The simultaneous appearance of grain growth and diffusion of chromium from the substrate at 750 °C suggests that chromium acts as a sintering aid.

Authors with CRIS profile

Juliana Maier Lehrstuhl für Glas und Keramik Udo Eckstein Lehrstuhl für Glas und Keramik Neamul Hayet Khansur Lehrstuhl für Glas und Keramik

Additional Organisation(s)

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

Involved external institutions

NTNU Trondheim - Norwegian University of Science and Technology NO Norway (NO) Justus-Liebig-Universität Gießen DE Germany (DE)

How to cite

APA:

Bentzen, M., Maier, J., Eckstein, U., He, J., Henss, A., Khansur, N.H., & Glaum, J. (2023). Enhanced grain growth and dielectric properties in aerosol deposited BaTiO3. Journal of the European Ceramic Society. https://dx.doi.org/10.1016/j.jeurceramsoc.2023.03.012

MLA:

Bentzen, Marcus, et al. "Enhanced grain growth and dielectric properties in aerosol deposited BaTiO3." Journal of the European Ceramic Society (2023).

BibTeX: Download