Title :
Material parameter variations of lead metaniobate piezoceramic in elevated temperature applications
Author :
Wu, Z. ; Cochran, S. ; Hurrell, A.
Author_Institution :
Shenzhen Inst. of Adv. Integration Technol., Chinese Acad. of Sci., Shenzhen
Abstract :
The electrical impedance characteristics around the resonant frequency of a thickness extensional vibration mode lead metaniobate sample were measured from ambient temperature up to 100degC. The material constants under various temperatures were determined by a precise theoretical fitting process of the measured electrical impedance. The effect of higher temperatures on the material properties are presented and analysed.
Keywords :
Curie temperature; electric impedance; lead compounds; piezoceramics; piezoelectricity; vibrational modes; Curie temperature; PbNb2O6; electrical impedance characteristics; lead metaniobate piezoceramic; material parameter variations; resonant frequency; temperature 25 C to 100 C; theoretical fitting process; thickness extensional vibration mode;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081115
