| 简介 |
PROBLEM TO BE SOLVED : To provide a dielectric ceramic having a high dielectric constant and excellent temperature characteristics of relative dielectric constant and to provide a multilayered ceramic capacitor using the dielectric ceramic.SOLUTION : The dielectric ceramic includes 0.05-0.3 mol of vanadium in terms of V2O5 in 100 mol of barium constituting barium titanate, and 0.5-1.5 mol in terms of RE2O3 of one kind of rare earth element (RE) selected from among yttrium, dysprosium, holmium, erbium and terbium. In an X-ray diffraction chart, a diffraction strength of (004) face representing tetragonal barium titanate is larger than that of (400) face representing cubic barium titanate and also the Curie temperature is 100-120°C.COPYRIGHT : (C)2010, JPO&INPIT |
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