Ｍｎ−Ｚｎ−Ｃｏ系フェライトおよびその製造方法

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专利权人:

ＪＦＥケミカル株式会社

发明人:

後藤 聡志,池田 幸司

申请号：

JP20140118075

公开号：

JP6139467(B2)

申请日:

2014.06.06

申请国别(地区):

日本

年份:

2017

代理人:

摘要：

PROBLEM TO BE SOLVED: To provide Mn-Zn-Co ferrite having high initial relative permeability in a wide temperature range about from -20°C to 150°C.SOLUTION: The present invention provides Mn-Zn-Co ferrite that comprises FeO: 52.6-53.7 mol%, ZnO: 13.2-16.7 mol%, CoO: 0.15-0.50 mol% and the balance MnO as fundamental components, and also comprises SiO: 0.002-0.010 mass%, CaO: 0.005-0.060 mass% and NbO: 0.005-0.020 mass% as accessory components, with the balance inevitable impurities. In the inevitable impurities, a carbon content is reduced to 0.0050 mass% or less.

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