| 摘要 |
A piezoelectric/electrostrictive material having a nonstoichiometric composition represented by a general formula ( 1 ): <?in-line-formulae description="In-line Formulae" end="lead"?>(1-x)(Bi<SUB>a</SUB>Na<SUB>b</SUB>TiO<SUB>3+delta</SUB>)-x(K<SUB>c</SUB>NbO<SUB>3+zeta</SUB>) (1)<?in-line-formulae description="In-line Formulae" end="tail"?> wherein 0.01<=x<0.08, a<0.5, 1.01<=(a/b)<=1.08, 0.92<=(a+b)/c<0.99, and 0.9<=c<=1.1, and zeta<>0 when delta=0 and delta<>0 when zeta=0. |
