Electromechanical Properties of Robocasted Barium Titanate Ceramics
| Parent link: | Advanced Engineering Materials Vol. 22, iss. 9.— 2020.— [2000325, 10 p.] |
|---|---|
| Corporate Author: | |
| Other Authors: | , , , |
| Summary: | Title screen This work presents the fabrication of dense polycrystalline barium titanate (BaTiO3, BT) for electromechanical transduction using robocasting and cold isostatic pressing (CIP). The use of CIP as post-treatment is proposed to eliminate defects and increase the density of robocasted parts to improve the piezoelectric performance. For robocasting, pastes containing 50 and 52 vol% are developed; the resulting green robocasted parts are CIPed at 100 and 150 MPa. Using this proposed technique, samples robocasted with BT52 and CIPed at 150 MPa display a relative density of 98%, comparable with reference polycrystalline samples. In addition, an increase in both the piezoelectric charge and voltage coefficient is observed in robocasted parts, with the values up to 195 pC/N and 12•10{-3} Vm N{-1}, respectively. These values, which are comparable with previous studies of polycrystalline BT, indicate that the combined robocasting and CIP technique is a possible method for producing 3D printed piezoelectric sensors. |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://doi.org/10.1002/adem.202000325 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665225 |