A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PIEZOELECTRIC/ELECTROSTRICTIVE CERAMIC COMPOSITION AND DISPLACEMENT GENERATING DEVICE
Provided is piezoelectric/electrostrictive body generating large electric-field-induced strain, and having high durability with respect to an electric field having a direction opposite to a polarization direction. A composition of piezoelectric/electrostrictive ceramics is represented by a general formula Pb a {Zn b Sb c (Zr d Ti 1-d ) 1-b-c }O 3 . As for a, b, c, and d, 0.985 ¤ a ¤ 0.998, 0.010 ¤ b ¤ 0.040, 0.025 ¤ c ¤ 0.090, 0.460 ¤ d ¤ 0.510, and 2.125 ¤ c/b ¤ 3.000 are satisfied. An accessory component containing at least one element selected from the group consisting of Mn, Cr, Fe, and a rare-earth element may be added to a main component. An additive amount of the at least one element relative to 100 parts by weight of the main component is 0.3 parts by weight or less in terms of an oxide.
PIEZOELECTRIC/ELECTROSTRICTIVE CERAMIC COMPOSITION AND DISPLACEMENT GENERATING DEVICE
Provided is piezoelectric/electrostrictive body generating large electric-field-induced strain, and having high durability with respect to an electric field having a direction opposite to a polarization direction. A composition of piezoelectric/electrostrictive ceramics is represented by a general formula Pb a {Zn b Sb c (Zr d Ti 1-d ) 1-b-c }O 3 . As for a, b, c, and d, 0.985 ¤ a ¤ 0.998, 0.010 ¤ b ¤ 0.040, 0.025 ¤ c ¤ 0.090, 0.460 ¤ d ¤ 0.510, and 2.125 ¤ c/b ¤ 3.000 are satisfied. An accessory component containing at least one element selected from the group consisting of Mn, Cr, Fe, and a rare-earth element may be added to a main component. An additive amount of the at least one element relative to 100 parts by weight of the main component is 0.3 parts by weight or less in terms of an oxide.
PIEZOELECTRIC/ELECTROSTRICTIVE CERAMIC COMPOSITION AND DISPLACEMENT GENERATING DEVICE
PIEZOELEKTRISCHE/ELEKTROSTRIKTIVE KERAMIKZUSAMMENSETZUNG UND VERSCHIEBUNGSERZEUGENDE VORRICHTUNG
COMPOSITION CÉRAMIQUE PIÉZOÉLECTRIQUE/ÉLECTROSTRICTIVE ET DISPOSITIF GÉNÉRANT LE DÉPLACEMENT
HIBINO TOMOHIKO (author)
2017-08-23
Patent
Electronic Resource
English
Piezoelectric/electrostrictive ceramics composition and displacement generating device
| European Patent Office | 2015
Piezoelectric/electrostrictive ceramic composition and piezoelectric/electrostrictive device
| European Patent Office | 2017
| European Patent Office | 2019
| European Patent Office | 2019