Title :
Investigation on piezoelectric ceramics with high d33, d 31 for a new type of rotational stepper motor
Author :
Gui, Zhilun ; Zhong, Wei ; Dong, Shuxiang ; Li, Longtu ; Zhang, Xiaowen
Author_Institution :
Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China
Abstract :
A quarternary system ceramic with high piezoelectric constants, particularly a high d31 and high d33, was studied. The composition of the materials is PMN-PNN-PZT doped with oxides of Sr, Bi, Sn and La etc. The properties of the materials are as follow: d33=(600-750)10-12C/N, d31=(-300-398)×10-12C/N, Kp=0.68-0.75. By using this material, a new type of rotational stepper motor, a piezoelectric electro-rheological motor had been made. This kind of motor has unique advantages: no vibration noise, zero wear, low consumed power, large travel range and high resolution etc
Keywords :
bismuth compounds; electrorheology; lanthanum compounds; lead compounds; piezoceramics; piezoelectric motors; stepping motors; strontium compounds; tin compounds; PbMgO3NbO3-PbZrO3TiO3-SrO-SnO2-La2O3-Bi2O3Jk; doped PMN-PNN-PZT; doping effect; low consumed power; piezoelectric ceramics; piezoelectric constants; rotational stepper motor; Bismuth; Ceramics; Chemical analysis; Dielectric measurements; Doping; Micromotors; Optical filters; Piezoelectric polarization; Strontium; Tin;
Conference_Titel :
Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on
Conference_Location :
University Park, PA
Print_ISBN :
0-7803-1847-1
DOI :
10.1109/ISAF.1994.522383
