Ｆｅ基金属ガラス粉末を用いた圧粉磁心の作製と応用

• 水嶋 隆夫

  アルプス電気（株）磁気デバイス事業部

• 小柴 寿人

  アルプス電気（株）磁気デバイス事業部

• 内藤 豊

  アルプス電気（株）磁気デバイス事業部

• 井上 明久

  東北大学

書誌事項

タイトル別名

• Preparation of the Fe-based Glassy Alloy Powder Cores and their Applications
• Feキ キンゾク ガラス フンマツ オ モチイタ アップン ジシン ノ サクセイ ト オウヨウ

抄録

New core (Liqualloy^TM core) made of soft magnetic Fe-based glassy alloy powder was fabricated by the consolidation using an uni-axial mechanical press at room temperature. This new core has the constant relative permeability (μ') of about 60 up to 1 MHz and extremely low core loss blow 200kW/m³ at f=100kHz and B_m=0.1 T. The efficiency of the switching power supply (η) was improved by 2∼3% when the Liqualloy^TM core was used instead of Fe-Al-Si core. The temperature rise near the Liqualloy^TM core (ΔT) was also 10K lower than that of the Fe-Al-Si core. These excellent properties of the Liqualloy^TM core are based on its extremely low hysteresis and eddy current losses. These low losses are originated from its good soft magnetic properties (Hc=2A/m) after annealing at relatively low temperature, its intrinsic hardness (Hv=1000) and high resistivitiy (ρ=160μΩcm).

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 54 (11), 768-772, 2007

  一般社団法人 粉体粉末冶金協会

キーワード

• powder core
• Fe-based glassy alloys
• soft magnetic properties
• core losses
• efficiency of electric power supply

詳細情報

• CRID: 1390001206307126912
• NII論文ID: 10019983377
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.54.768
• COI: 1:CAS:528:DC%2BD2sXhtlCksr3N
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 9279337
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9279337
• 本文言語コード: ja
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可