| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic composition which has a high piezoelectric d constant and a high depolarization temperature, and excellent in productivity. <P>SOLUTION: The composition is expressed by the compositional formula: (1-y)ä(1-x)(Bi<SB POS="POST">1/2</SB>Na<SB POS="POST">1/2</SB>TiO<SB POS="POST">3</SB>)-xBaTiO<SB POS="POST">3</SB>}-yäBa(Mg<SB POS="POST">1/3</SB>Nb<SB POS="POST">2/3</SB>)O<SB POS="POST">3</SB>}, and x and y are defined as following ranges: 0.040≤x≤0.100, and 0.005≤y≤0.080. <P>COPYRIGHT: (C)2013,JPO&INPIT |
