Murata Manufacturing Co., Ltd.

National Institute of Advanced Industrial Science and Technology

Satoshi Oga

Kazuhiro Kaneko

Kimihiro Ozaki

Kenta Takagi

A raw material for a magnet, which comprises Sm and Fe. A magnet is obtained by nitriding this raw material for a magnet. In particular, a raw material for a magnet comprises an Sm&#x2014;Fe binary alloy as a main component. An intensity ratio of an SmFe(024) peak to an SmFe(110) peak is less than 0.001 as measured by an X-ray diffraction method.

Raw material for magnet, which comprises Sm&#x2014;Fe binary alloy as main component, method for producing the same, and magnet

A ceramic composition is prepared to contain a BO&#x2014;SiO&#x2014;AlO-MO based glass composition (M: Ca, Mg, Sr and/or Ba, BO: 4 to 17.5 weight %, SiO: 28 to 50 weight %, AlO: 0 to 20 weight %, and MO: 36 to 50 weight %): 24 to 40 weight %, SrTiOand/or CaTiO: 46 to 75.4 weight %, CuO: 0.1 to 5.0 weight %, CaO: 0.5 to 7.0 weight %, and MnO, ZnO and/or CoO: 10 weight % or more (however, including 0% by weight). The ceramic composition is subjected to firing to produce a ceramic sintered body, and obtain a composite LC component including the ceramic sintered body. While suppressing the shrinkage behavior during firing, dielectric properties can be improved dramatically as compared with conventional cases, and moreover reliability can be ensured.

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Nagaokakyo, Japan

Satoshi Oga