Articles
  • Microwave sintering of lead-free barium titanate piezoelectric ceramics from barium titanate powders synthesized by a hydrothermal method 
  • Kongjun Zhu*, Jinhao Qiu, Hongli Ji and Yuansheng Chen
  • The Key Lab for Smart Materials & Structures, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Abstract
In this study, three types of BaTiO(3) powder with different particle sizes synthesized by a hydrothermal method were used to fabricate the lead-free barium titanate piezoelectric ceramics. The BaTiO(3) ceramics from these three types of BaTiO(3) powders were sintered at different temperatures (1100 and 1150 degrees C) using a microwave sintering method, and their piezoelectric properties were investigated and compared. The results indicate that all The BaTiO(3) piezoelectric ceramics exhibit higher d(33) value (above 330 pC/N, the highest is about 370 pC/N). The reasons were also investigated by comparing the properties of the three types of BaTiO(3) powders, sintering temperature and method.

Keywords: Barium Titanate; Hydrothermal method; Microwave sintering; Lead-free; Ceramics; Piezoelectric property

This Article

  • 2010; 11(3): 293-296

    Published on Jun 30, 2010