Influence of microwave sintering on electrical properties of BCTZ lead free piezoelectric ceramics - Université de Limoges Accéder directement au contenu
Article Dans Une Revue Journal of the European Ceramic Society Année : 2020

Influence of microwave sintering on electrical properties of BCTZ lead free piezoelectric ceramics

Résumé

Barium titanate doped with calcium and zirconium (BCTZ) could be used at low temperature to replace lead based piezoelectric ceramics (PZT). The classical way to obtain BCTZ is the solid-state route coupled with conventional sintering, but this step is time-consuming. To reduce the duration of this process, microwave heating was used for sintering. It is a fast sintering method and the heating rate was around 200 °C/min in this study. Slightly better electrical properties with finer microstructures (d33* = 706 pm/V, grain size about 42.1 ± 14.2 μm) were obtained for samples sintered by microwave heating during 50 min compared to the conventional sintering (d33* = 622 pm/V, 22.6 ± 4.4 μm). The main result of this study is that by using microwave heating, the sintering step duration (including heating, dwell time and cooling) was drastically reduced: 1.5 h for microwave sintering against 12.5 h for conventional sintering.
Fichier non déposé

Dates et versions

hal-02550924 , version 1 (22-04-2020)

Identifiants

Citer

Kelly Orlik, Yannick Lorgouilloux, Pascal Marchet, Anthony Thuault, Mohamed Rguiti, et al.. Influence of microwave sintering on electrical properties of BCTZ lead free piezoelectric ceramics. Journal of the European Ceramic Society, 2020, 40 (4), pp.1212-1216. ⟨10.1016/j.jeurceramsoc.2019.12.010⟩. ⟨hal-02550924⟩
80 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More