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Piezoelectric / electrostrictive ceramic composition and displacement generator
Piezoelectric / electrostrictive ceramic composition and displacement generator
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机译:压电/电致伸缩陶瓷成分和位移发生器
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摘要
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.
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机译:提供了一种压电/电致伸缩体,其产生大的电场感应应变,并且相对于具有与极化方向相反的方向的电场具有高的耐久性。压电/电致伸缩陶瓷的组成由通式Pb a {Zn b Sb c(Zr d Ti 1-d)1-b-c} O 3表示。对于a,b,c和d,0.985‰a‰0.998、0.010‰b‰0.040、0.025‰c‰0.090、0.460‰d‰0.510和2.125‰c / b满足‰¤3.000。可以将包含选自由Mn,Cr,Fe和稀土元素组成的组中的至少一种元素的辅助成分添加至主要成分。相对于100重量份的主要成分,至少一种元素的添加量以氧化物计为0.3重量份以下。
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