Excellent high-temperature piezoelectric performances of ternary BiScO3-PbTiO3-(Sr0.7Bi0.2)TiO3 ceramics achieved via multiple optimization strategy

Publication Name

Journal of the European Ceramic Society


In harsh environments, the piezoelectric devices with critical component of high-temperature piezoelectric materials are in great demand. BiScO3-PbTiO3 ceramics with large piezoelectric coefficient (d33) and high Curie temperature (Tc), shows a high-level dissipation factor (tanδ), causing serious self-heating. Here, a multiple-level approach, that is, regulation of phase and domain structures, domain pinning by isolated defects, and enlargement of the activation energy, is proposed to achieve a well-balanced piezoelectric performance. Based on this strategy, novel BiScO3-PbTiO3-(Sr0.7Bi0.2)TiO3 +MnO2 ceramics (Mn:BS-PT-SBT) were fabricated. Among them Mn:BS-0.62PT-0.03SBT displays an ultralow tanδ of 1.62% at 200 °C, a large d33 of 358 pC N−1, and a high Tc of 425 °C. Moreover, the fabricated acoustic emission sensor maintains a high amplitude of 99 dB within 25–200 °C, and the emission transducer has a large residual power ratio twice that of commercial P-5 G at 200 °C. This study provides an effective route for designing piezoelectric ceramics that operate competitively at high temperatures.

Open Access Status

This publication is not available as open access

Funding Number


Funding Sponsor

Key Technology Research and Development Program of Shandong