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Piezoelectric properties of hot-pressed 18PMN-41PZ-41PT ceramics

โœ Scribed by Jin -Chen Shaw; Kuo -Shung Liu; I -Nan Lin

Publisher
Springer
Year
1993
Tongue
English
Weight
881 KB
Volume
28
Category
Article
ISSN
0022-2461

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โœฆ Synopsis

Piezoelectric ceramics of 1 8PMN-41 PZ-41 PT were sintered by hot-pressing and normal sintering methods. The microstructure, density, PE curve and S-E curve were also compared.

The best hot-pressing condition for 1 8PMN-41 PZ-41 PT material was obtained at a temperature of 1000~ and a pressure of 700 kgcm-2; it could achieve 99.66% theoretical density and a fine, uniform microstructure as a result of a 200-300~ decrease in the sintering temperature. A higher coercivity was attained with the density increase. The fine, uniform microstructure also enhanced the increase in polarization and strain.

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