ＨＩＰ法によるＦｅ４Ｎ焼結体の作成

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タイトル別名
  • Preparation of Fe4N Sintered Compact by HIP.
  • HIPホウ ニ ヨル Fe4N ショウケツタイ ノ サクセイ

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Fe4N powder, which is known as a softmagnetic material, was sintered by Hot Isostatic Pressing (HIP). The powder was obtained by heating a carbonyl iron powder at 500°C for 4h in the mixture of H2-NH3(60vol%). Then, the Fe4N powder was encapsulated into an Al tube in troidal shape. Hipping was performed below 500°C to prevent the decomposition of Fe4N. Single phase Fe4N compact with 99% relative density was obtained under the condition of 450°C, 200MPa and 120min. The saturation magnetization of the compact was 150emu/g.

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