Detail publikace

Rapid pressureless sintering of barium titanate-based piezoceramics and their electromechanical harvesting performance

BIJALWAN, V. PRAJZLER, V. ERHART, J. VELAZQUEZ, J. GALUSEK, D. MACA, K.

Originální název

Rapid pressureless sintering of barium titanate-based piezoceramics and their electromechanical harvesting performance

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The innovative method of processing of Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT), Ba0.95Ca0.05Ti0.91Sn0.09O3 (BCST), and BCZT doped with 0.07-wt.% CeO2 (Ce-BCZT) lead-free piezoceramics is presented. The rapid pressureless sintering (RPLS) technique can reduce high-temperature processing time more than eight times compared to the conventional sintering. RPLS was performed at a heating and cooling rate of 100 degrees C/min up to 1550 degrees C with 15-, 30-, 45-, and 60-min dwell times, producing defect and crack-free nearly dense ceramics. The optimal microstructure exhibiting the highest piezoelectric constant was reached after 30 min in BCZT (grain size 25-30 mu m, d(33) = 428 pC/N), 45 min in Ce-BCZT (grain size 30-35 mu m, d(33) = 515 pC/N), and 45 min of dwell time in BCST (grain size 58-68 mu m, d(33) = 443 pC/N). The highly competitive energy-harvesting properties were discovered for BCZT, resp. Ce-BCZT (n = 94.5, resp. 93.4%, FOMoff = 6.1, resp. 7.8 x 10(-10) m(2)/N) ceramics.

Klíčová slova

energy harvesting; lead-free ceramics; microstructure; piezoelectric materials; properties; rapid pressureless sintering

Autoři

BIJALWAN, V.; PRAJZLER, V.; ERHART, J.; VELAZQUEZ, J.; GALUSEK, D.; MACA, K.

Vydáno

1. 11. 2022

Nakladatel

WILEY

Místo

HOBOKEN

ISSN

1551-2916

Periodikum

JOURNAL OF THE AMERICAN CERAMIC SOCIETY

Ročník

105

Číslo

11

Stát

Spojené státy americké

Strany od

6886

Strany do

6897

Strany počet

12

URL

https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.18602

BibTex

@article{BUT178860,
  author="Vijay {Bijalwan} and Vladimír {Prajzler} and Jiří {Erhart} and Jose J. {Velazquez} and Dušan {Galusek} and Karel {Maca}",
  title="Rapid pressureless sintering of barium titanate-based piezoceramics and their electromechanical harvesting performance",
  journal="JOURNAL OF THE AMERICAN CERAMIC SOCIETY",
  year="2022",
  volume="105",
  number="11",
  pages="6886--6897",
  doi="10.1111/jace.18602",
  issn="1551-2916",
  url="https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.18602"
}