Properties of Iron Core Fabricated from Flaky-Shaped and Annealed Pure Iron Powder

DOI Web Site Web Site 1 Citations 8 References

Bibliographic Information

Other Title
  • 焼鈍した扁平純鉄粉による圧粉磁心の特性
  • ショウドン シタ ヘンペイ ジュンテップン ニ ヨル アップンジシン ノ トクセイ

Search this article

Description

<p>To improve the properties of powder magnetic core for motors, such as iron loss, resistivity and strength, pure iron powder was deformed into flaky-shaped and then annealed to decrease strain by deformation. It was confirmed that the strength of iron core increased with increasing the aspect ratio of powder. However, the resistivity extremely decreased. The iron core showed properties as follows; density = 7.66 × 106 g/m3, resistivity = 2.5 × 104 μΩ·m, iron loss (Bmax = 1 T, f = 400 Hz) = 30 W/kg, iron loss (Bmax = 1 T, f = 800 Hz) = 63 W/kg, B5k = 1.49 T, radial crushing strength = 95 MPa. Especially, eddy current loss coefficient was 0.008 mWs2/kg, extremely lower than electromagnetic steel sheet and powder magnetic core reported ever.</p>

Journal

Citations (1)*help

See more

References(8)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top