发明名称 DIELECTRIC PORCELAIN COMPOSITE
摘要 PURPOSE:To enhance dielectric constant, dielectric breakdown voltage and insulation resistance, and reduce a crystal grain diameter size to reduce dielectric substance thickness by having specific pts.wt. of Nb2O5 and MnO2 contained in 100 pts.wt. of a main component constituted within a mole ratio in a specific formula wherein (x), (y), and (z) are enclosed by points (a), (b), (c), and (d). CONSTITUTION:In 100 pts.wt. of a main component constituted within a mole ratio wherein (x), (y), and (z) are enclosed by points (a), (b), (c), and (d), as shown in the Table 1 when a general formula is expressed as xBaO-yTiO2-zCeO2 (where x+y+z=1.00), 0.3-3.0 pts.wt. of Nb2O5 and 0.05-0.25 pts.wt. of MnO2 are contained. For example, powder of high purity of BaCO3, TiO2, CeO2, Nb2O5 and MnO2 is weighed, put in a ball mill with pure water, wet-blended, dehydrated and dried. It is put in a high-alumina crucible to be calcined in the atomophere. It is put in a ball mill with pure water, wet-milled, dehydrated and dried. An organic binder is added for homogenizing and grading process is performed through a screen. A metal mold and hydraulic press are used for forming. It is put in an alumina sheath where zirconium power is laid on to obtain dielectric porcelain.
申请公布号 JPH0451408(A) 申请公布日期 1992.02.19
申请号 JP19900159005 申请日期 1990.06.18
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 WANO TETSUO;KURAMITSU HIDENORI;KOMATSU KAZUHIRO
分类号 C04B35/46;H01B3/12;H01G4/12 主分类号 C04B35/46
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