Lorenz MM, Martin A, Webber KG, Travitzky N (2020)
Publication Type: Journal article
Publication year: 2020
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 approximate to 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 x 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.
APA:
Lorenz, M.M., Martin, A., Webber, K.G., & Travitzky, N. (2020). Electromechanical Properties of Robocasted Barium Titanate Ceramics. Advanced Engineering Materials. https://doi.org/10.1002/adem.202000325
MLA:
Lorenz, Mylena Mayara, et al. "Electromechanical Properties of Robocasted Barium Titanate Ceramics." Advanced Engineering Materials (2020).
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