| 摘要 |
PURPOSE: To improve the curie point of a Pb(Mg1/3 Nb2/3 )O3 -Pb(Ni1/3 Ta2/3 )O3 - PbTiO3 -PbZrO3 piezoelectric porcelain. CONSTITUTION: The piezoelectric material comprises a porcelain having a composition of formula: aPb[(Mg1-x Nix )1/3 (Nb1-y Tay )2/3 ]O3 -bPbTiO3 -cPbZrO3 (a, b, c are mol.%; a+b+c=100), wherein a, b, c, X and Y satisfy the inequalities. 15<=a<=45, 32<=b<=45, 10<=c<=50, 0.2<=X, Y<=0.9, and X-Y>=0.05. The a, b, c, X and Y preferably satisfy inequalities. 25<=a<=4.3, 35<=b<=43, 14<=c<=40, and 0.3<=X, Y<=0.8. |
