发明名称 BARIUM TITANATE SEMICONDUCTOR CERAMIC AND ITS MANUFACTURE
摘要 PURPOSE:To provide a semiconducting ceramic with controlled mean particle diameter and maximum particle diameter, which has a excellent withstand voltage and specific resistivity at the room temperature by using particles of a raw material which is prepared by a wet reaction method and composed mainly of barium titanate containing niobium at a specific metallic component ratio. CONSTITUTION:The Nb/Ti atomic ratio and Ba/Ti atomic ratio of a semiconducting barium titanate porcelain fall within the extent surrounded by points A, B, C, and C or a, b, c, and d and the mean particle diameter of the porcelain is 1-2mum and, at the same time, the maximum gain diameter is <5mum.
申请公布号 JPH07142207(A) 申请公布日期 1995.06.02
申请号 JP19930325713 申请日期 1993.11.16
申请人 TEIKA CORP 发明人 DEGUCHI TAKESHI;KUSAKA KOZO;TSUBOMOTO NAOTO
分类号 C04B35/46;H01C7/02 主分类号 C04B35/46
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