| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dielectric porcelain having a high dielectric constant and little hysteresis in electric field-dielectric polarization property and to provide a capacitor using it. <P>SOLUTION: The dielectric porcelain contains magnesium of 0.01-0.06 mole in terms of MgO, yttrium of 0-0.03 mole in terms of YO<SB>3/2</SB>, manganese of 0.005-0.03 mole in terms of MnO and ytterbium of 0.045-0.2 mole in terms of YbO<SB>3/2</SB>based on 1 mole of barium constituting barium titanate. In an X-ray diffraction chart of the dielectric porcelain, when the Cukα line is used, difference (d<SB>25</SB>-d<SB>150</SB>) between the half-width (d<SB>25</SB>) of diffraction peak at 25°C appearing in 2θ of 44.7-45.5° and the half-width (d<SB>150</SB>) at 150°C is 0.05 or less. <P>COPYRIGHT: (C)2009,JPO&INPIT |
