Novel Sol-Gel Synthesis Route for Ce- and V-Doped Ba0.85Ca0.15Ti0.9Zr0.1O3 Piezoceramics

Marques LS, Weichelt M, Kuhfuß M, Rambo CR, Fey T (2024)

Publication Type: Journal article

Publication year: 2024

Journal

Materials MDPI

Book Volume: 17

Article Number: 3228

Journal Issue: 13

DOI: 10.3390/ma17133228

Abstract

To meet the current demand for lead-free piezoelectric ceramics, a novel sol-gel synthesis route is presented for the preparation of Ba0.85Ca0.15Ti0.9Zr0.1O3 doped with cerium (Ce = 0, 0.01, and 0.02 mol%) and vanadium (V = 0, 0.3, and 0.4 mol%). X-ray diffraction patterns reveal the formation of a perovskite phase (space group P4mm) for all samples after calcination at 800 °C and sintering at 1250, 1350, and 1450 °C, where it is proposed that both dopants occupy the B site. Sintering studies show that V doping allows the sintering temperature to be reduced to at least 1250 °C. Undoped BCZT samples sintered at the same temperature show reduced functional properties compared to V-doped samples, i.e., d33 values increase by an order of magnitude with doping. The dissipation factor tan δ decreases with increasing sintering temperature for all doping concentrations, while the Curie temperature TC increases for all V-doped samples, reaching 120 °C for high-concentration co-doped samples. All results indicate that vanadium doping can facilitate the processing of BCZT at lower sintering temperatures without compromising performance while promoting thermal property stability.

Authors with CRIS profile

Michelle Weichelt Lehrstuhl für Glas und Keramik Michel Kuhfuß Lehrstuhl für Glas und Keramik Tobias Fey Lehrstuhl für Glas und Keramik

Involved external institutions

Federal University of Santa Catarina / Universidade Federal de Santa Catarina (UFSC) BR Brazil (BR)

How to cite

APA:

Marques, L.S., Weichelt, M., Kuhfuß, M., Rambo, C.R., & Fey, T. (2024). Novel Sol-Gel Synthesis Route for Ce- and V-Doped Ba0.85Ca0.15Ti0.9Zr0.1O3 Piezoceramics. Materials, 17(13). https://doi.org/10.3390/ma17133228

MLA:

Marques, Larissa S., et al. "Novel Sol-Gel Synthesis Route for Ce- and V-Doped Ba0.85Ca0.15Ti0.9Zr0.1O3 Piezoceramics." Materials 17.13 (2024).

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