| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-lead piezoelectric porcelain and a piezoelectric element showing little change in piezoelectric properties around room temperature. <P>SOLUTION: The piezoelectric pocelain which is used includes 100 pts.mass of a component represented by the compositional formula: (Na<SB>a</SB>K<SB>1-a</SB>)<SB>1-b</SB>Li<SB>b</SB>NbO<SB>3</SB>+xä(Na<SB>0.5</SB>Bi<SB>0.5</SB>)Bi<SB>2</SB>Nb<SB>2</SB>O<SB>9</SB>} (wherein a, b, and x satisfy the relations: 0.42≤a≤0.58, 0.03≤b≤0.06, and 0.001≤x≤0.005, respectively) and 0.05-2.0 pts.mass of Mn in terms of MnO<SB>2</SB>. <P>COPYRIGHT: (C)2009,JPO&INPIT |
