Shape Memory Unimorph Actuators Using Lead Zirconate-Based Antiferroelectrics

Shape memory unimorph actuators have been trial manufactured using lead zirconate-based antiferroelectric ceramics (Pb0.99Nb0.02[(Zr0.6Sn0.4)1-yTiy]0.98O3). In a unimorph structure a slightly higher Ti concentration y(0.0630) is required than that (0.0625) in a simple disk, in order to stabilize the...

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Veröffentlicht in:	Journal of the Ceramic Society of Japan 1990/08/01, Vol.98(1140), pp.905-908
Hauptverfasser:	OH, Ki-Young, FURUTA, Atsushi, UCHINO, Kenji
Format:	Artikel
Sprache:	eng
Schlagworte:	Antiferroelectrics Condensed matter: electronic structure, electrical, magnetic, and optical properties Dielectrics, piezoelectrics, and ferroelectrics and their properties Exact sciences and technology Ferroelectricity and antiferroelectricity Ferroelectrics Physics PNZST Shape memory effect Unimorph
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Zusammenfassung:	Shape memory unimorph actuators have been trial manufactured using lead zirconate-based antiferroelectric ceramics (Pb0.99Nb0.02[(Zr0.6Sn0.4)1-yTiy]0.98O3). In a unimorph structure a slightly higher Ti concentration y(0.0630) is required than that (0.0625) in a simple disk, in order to stabilize the field-induced ferroelectric state; this is probably due to the compressive stress generated in the unimorph configuration. Dynamic response has also been investigated in the shape memory unimorph. Only a short period electric field pulse (
ISSN:	0914-5400 1882-1022
DOI:	10.2109/jcersj.98.905