添加Dy和Nb的納米復合Pr<sub>2</sub>Fe<sub>14</sub>B/<i>α</i>-Fe永磁合金結構和磁性

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添加Dy和Nb的納米復合Pr₂Fe₁₄B/α-Fe永磁合金結構和磁性

王佐誠, 周壽增, 喬袆, 張茂才, 高學緒, 趙青, 王潤

文章導航 > 工程科學學報 > 1998 > 20(1): 68-71,76

王佐誠, 周壽增, 喬袆, 張茂才, 高學緒, 趙青, 王潤. 添加Dy和Nb的納米復合Pr2Fe14B/α-Fe永磁合金結構和磁性[J]. 工程科學學報, 1998, 20(1): 68-71,76. doi: 10.13374/j.issn1001-053x.1998.01.015

引用本文:

王佐誠, 周壽增, 喬袆, 張茂才, 高學緒, 趙青, 王潤. 添加Dy和Nb的納米復合Pr₂Fe₁₄B/α-Fe永磁合金結構和磁性[J]. 工程科學學報, 1998, 20(1): 68-71,76. doi: 10.13374/j.issn1001-053x.1998.01.015

Wang Zuocheng, Zhou Shouzeng, Qiao Yi, Zhang Maocai, Gao Xuexu, Zhao Qing, Wang Run. Microstructure and Magnetic Properties of Nanocomposite Pr2Fe14B/α-Fe Hard Magnetic Alloys by Dy and Nb Substitutions[J]. Chinese Journal of Engineering, 1998, 20(1): 68-71,76. doi: 10.13374/j.issn1001-053x.1998.01.015

Citation:

Wang Zuocheng, Zhou Shouzeng, Qiao Yi, Zhang Maocai, Gao Xuexu, Zhao Qing, Wang Run. Microstructure and Magnetic Properties of Nanocomposite Pr₂Fe₁₄B/α-Fe Hard Magnetic Alloys by Dy and Nb Substitutions[J]. Chinese Journal of Engineering, 1998, 20(1): 68-71,76. doi: 10.13374/j.issn1001-053x.1998.01.015

王佐誠, 周壽增, 喬袆, 張茂才, 高學緒, 趙青, 王潤. 添加Dy和Nb的納米復合Pr2Fe14B/α-Fe永磁合金結構和磁性[J]. 工程科學學報, 1998, 20(1): 68-71,76. doi: 10.13374/j.issn1001-053x.1998.01.015

引用本文:

王佐誠, 周壽增, 喬袆, 張茂才, 高學緒, 趙青, 王潤. 添加Dy和Nb的納米復合Pr₂Fe₁₄B/α-Fe永磁合金結構和磁性[J]. 工程科學學報, 1998, 20(1): 68-71,76. doi: 10.13374/j.issn1001-053x.1998.01.015

Wang Zuocheng, Zhou Shouzeng, Qiao Yi, Zhang Maocai, Gao Xuexu, Zhao Qing, Wang Run. Microstructure and Magnetic Properties of Nanocomposite Pr2Fe14B/α-Fe Hard Magnetic Alloys by Dy and Nb Substitutions[J]. Chinese Journal of Engineering, 1998, 20(1): 68-71,76. doi: 10.13374/j.issn1001-053x.1998.01.015

Citation:

Wang Zuocheng, Zhou Shouzeng, Qiao Yi, Zhang Maocai, Gao Xuexu, Zhao Qing, Wang Run. Microstructure and Magnetic Properties of Nanocomposite Pr₂Fe₁₄B/α-Fe Hard Magnetic Alloys by Dy and Nb Substitutions[J]. Chinese Journal of Engineering, 1998, 20(1): 68-71,76. doi: 10.13374/j.issn1001-053x.1998.01.015

添加Dy和Nb的納米復合Pr₂Fe₁₄B/α-Fe永磁合金結構和磁性

doi: 10.13374/j.issn1001-053x.1998.01.015

北京科技大學新金屬材料國家重點實驗室, 材料科學與工程學院, 北京 100083

基金項目:

國家自然科學基金資助課題

作者簡介:
王佐誠,男,31歲,博士;周壽增,男,62歲,教授,博導

中圖分類號: TG132.2
計量
- 文章訪問數: 259
- HTML全文瀏覽量: 85
- PDF下載量: 5
- 被引次數: 0
出版歷程
- 收稿日期: 1995-11-02
- 網絡出版日期: 2021-08-27

Microstructure and Magnetic Properties of Nanocomposite Pr₂Fe₁₄B/α-Fe Hard Magnetic Alloys by Dy and Nb Substitutions

State Key Laboratory for Advanced Metals and Materials, Materials Sciences and Engineering School, Beijing 100083, China

摘要: 研究了添加Dy和Nb對納米復合Pr₂Fe₁₄B/α-Fe永磁合金形成,組織結構及磁性的影響。結果表明:Pr₉Fe₈₅B₆非晶帶的晶化過程,在α-Fe相初始晶化之后,出現Pr₂Fe₂₃B₃亞穩相,最終形成Pr₂Fe₁₄B+α-Fe兩相組織.而添加Dy或同時添加Dy和Nb后晶化過程不出現亞穩相.添加Dy和Nb元素顯著地提高了納米復合永磁合金的磁性能。最終獲得了磁性能為H_CI=702.4kA/m,B_r=1.03T,(BH)_max=132.6kJ/m³的納米晶復合Pr₈Dy₁Fe₈₄Nb₁B₆永磁材料。
- 添加Dy和Mb /
- 納米復合磁體 /
- 剩磁增強
Abstract: The effects of Dy and Nb substitution on the formation, microstructrure and magnetic properties of Pr₂Fe₁₄B/α-Fe nanocomposites have been investigated. It was found that for Pr₉Fe₈₅B₆ ribbons, the metastable Pr₂Fe₂₃B₃ phase occurs after the initial crys. tallization of a-Fe and prior to the formation of the finial mixture of Pr₂Fe₁₄B and α-Fe. However, no metastable phase was observed during the crystallization of Dy or both Dy and Nb substituted ribbons. The addition of both Dy and Nb can cause the significant improvement of the magnetic properties.
- Dy and Nb substitutions /
- nanocompositc magnets /
- rcmanenee enhancement

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文章訪問數: 259
HTML全文瀏覽量: 85
PDF下載量: 5
被引次數: 0

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