| 简介 |
PROBLEM TO BE SOLVED : To achieve an improvement of high-temperature acceleration life (HALT) of insulation resistance (IR) and breakdown voltage (VB), in a reduction resistant dielectric ceramic composition including a perovskite type dielectric ceramic as a main component. SOLUTION : The dielectric ceramic composition comprises a main component including a compound having a perovskite type crystal structure and being represented by the general formula ABO3(wherein A is one kind or more elements selected from Ba, Ca, Sr and Mg, B is one kind or more elements selected from Ti, Zr and Hf, and [A]/[B] (molar ratio) is 0.990≤[A]/[B]COPYRIGHT : (C)2009, JPO&INPIT |
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