| 摘要 |
Problem to be Solved An object of the present invention is to provide a lead-free piezoelectric material capable of showing a high piezoelectric coefficient (d33>500 pC/N) exceeding that of soft PZT. Solution The present invention 1 is a lead-free piezoelectric material containing no toxic element such as Pb, comprising a pseudo-binary solid solution of {[(Ba1-x1M1x1)((Ti1-xZrx)1-y1N1y1)O3]-δ% [(Ba1-yCay)1-x2M2x2)(Ti1-y2N2y2)O3]} (wherein M1, N1, M2 and N2 represent an additive element)(abbreviated as BZT-δ% BCT).
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