| 简介 |
A piezoelectric/electrostrictive body having high durability against fields having high field induced strain and the opposite polarization direction. The composition of the piezoelectric/electrostrictive ceramic is indicated by general formula Pba{ZnbSbc(ZrdTi1-d)1-b-c}03. a, b, c, and d fulfill 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. An auxiliary component including at least one type of element selected from a group comprising Mn, Cr, Fe, and a rare earth element can be added to the main component. The amount of the at least one type of element added is no more than 0.3 parts by weight, in terms of oxide amount, relative to 100 parts by weight of the main component. |
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