Large electrical resistivity and high saturation magnetization nanocrystalline Fe86B13Cu1 alloy prepared by hot isothermal pressing |
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Authors: | Zhongzhi Tai Baiyun Huang Wensheng Liu |
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Affiliation: | State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China |
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Abstract: | The effects of hot isothermal pressing (HIP) on the microstructures and magnetic properties of nanocrystalline Fe86B13Cu1 ribbons were studied. It is shown that the precipitation of Fe3B phase is suppressed and the grain size of α-Fe phase decreases to 13.2 nm when amorphous Fe86B13Cu1 ribbons are annealed by HIP under the pressure of 150 MPa. A high electrical resistivity and high saturation magnetization nanocrystalline soft magnetic material is prepared by HIP owing to the suppression of the precipitation of Fe3B phase and a marked decrease in the grain size of α-Fe phase. The prepared sample exhibits a large electrical resistivity of 183 μΩ cm, a high saturation magnetization of 1.94 T and a low coercive force of 12 A/m. |
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Keywords: | Nanocrystalline material Microstructure Soft magnetic property Hot isothermal pressing |
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