Title :
Preparation and characterization of PBNN multilayer piezoelectric actuator
Author :
Chen, D.R. ; Zhu, M.G. ; Zhang, W.Z. ; Li, G.R.
Author_Institution :
Inst. of Ceramics, Acad. Sinica, Shanghai, China
Abstract :
The preparation and characterization of multilayer actuators with fifty layers (100 μm in thickness) of piezoelectric [(Pb(1-x/)Ba sub x/)6-y(NaLi)yNb10O30 ] (PBNN) were reported, which were prepared by tape-casting and cofired with internal Pd30+Ag70 electrodes. The PBNN wafers prepared by the tape-casting technique were compared with those prepared by conventional dry-pressure techniques. Delaminations occurring in the layers of some actuators were observed and discussed. The obtained high linearity and low hysteresis in the displacement-applied field, the symmetric displacement under positive and negative applied field, were discussed in relation to the crystal and domain structure
Keywords :
barium compounds; casting; delamination; dielectric hysteresis; electric domains; ferroelectric materials; lead compounds; materials preparation; piezoceramics; piezoelectric actuators; 100 mum; PBNN multilayer piezoelectric actuator; PbBaNaLiNb10O30; Pd-Ag; characterization; cofiring; crystal structure; delaminations; displacement-applied field; domain structure; high linearity; internal Pd30+Ag70 electrodes; low hysteresis; piezoelectric [(Pb(1-x/)Basub x/)6-y(NaLi) yNb10O30]; preparation; symmetric displacement; tape-casting; Biological materials; Ceramics; Electrodes; Fabrication; Intelligent actuators; Nonhomogeneous media; Optical materials; Piezoelectric actuators; Piezoelectric materials; Powders;
Conference_Titel :
Electrets, 1996. (ISE 9), 9th International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-2695-4
DOI :
10.1109/ISE.1996.578259
