| La-Co取代M型锶铁氧体的制备及性能 |
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| 引用本文： | 谢光环,孙威,曹玉杰,张鹏杰,王继全,全小康,刘辉.La-Co取代M型锶铁氧体的制备及性能[J].矿冶,2022,31(4). |
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| 作者姓名： | 谢光环 孙威 曹玉杰 张鹏杰 王继全 全小康 刘辉 |
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| 作者单位： | 矿冶科技集团有限公司,矿冶科技集团有限公司,矿冶科技集团有限公司,矿冶科技集团有限公司,矿冶科技集团有限公司,矿冶科技集团有限公司,矿冶科技集团有限公司 |
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| 基金项目： | 国家重点研发计划“稀土新材料”重点专项2021年度青年科学家项目“高磁性能高丰度稀土永磁铁氧体及制备科学问题研究”(项目编号：2021YFB3502400)第一作者谢光环,学士学位,工程师,主要研究方向铁氧体永磁材料。 E-mail：xieguanghuan@bgrimm.com通信作者孙威, E-mail：sunwei@bgrimm.com La-Co取代M型锶铁氧体的制备及性能 |
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| 摘 要： | 采用固相球磨法制备La-Co取代系M型锶铁氧体,研究了La-Co取代量对样品晶体结构、微观形貌和磁性能的影响。结论表明：Co2+单一取代和La-Co联合取代均会引起样品晶格常数的变化,所制备的M型锶铁氧体均形成了六角片状结构。与Co2+单一取代相比,La-Co联合取代可有效抑制微粒的长大,且分布均匀。当M型锶铁氧体的化学成分为Sr0.6La0.4Fe11.7Co0.3O19时,样品的Hcj最大,达到407 kA/m,较锶铁氧体SrFe12O19的Hcj提高88.65%。
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| 关 键 词： | 锶铁氧体 固相球磨法 La-Co取代 磁性能 |
| 收稿时间： | 2022/5/5 0:00:00 |
| 修稿时间： | 2022/6/20 0:00:00 |
Preparation and properties of La-Co substituted M-type strontium ferrite |
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| xieguanghuan,sunwei,mabin,zhangpengjie,wangjiquan,quanxiaokang and liuhui.Preparation and properties of La-Co substituted M-type strontium ferrite[J].Mining & Metallurgy,2022,31(4). |
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| Authors: | xieguanghuan sunwei mabin zhangpengjie wangjiquan quanxiaokang and liuhui |
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| Abstract: | M-type strontium ferrite of La-Co substitution system was prepared by solid-state ball milling. The effects of La-Co substitution on the crystal structure, microstructure and magnetic properties of the samples were studied. Results show that the single substitution of CO2+ and the combined substitution of La-Co will change the lattice constant of the samples, and the prepared M-type strontium ferrite forms a hexagonal sheet structure. Compared with the single substitution of CO2+, La-Co combined substitution can effectively inhibit the growth of particles and distribute evenly. When the chemical composition of M-type strontium ferrite is Sr0.6La0.4Fe11.7Co0.3O19, the Hcj of the sample is the largest, reaching 407 kA/m, which is 88.65% higher than that of strontium ferrite SrFe12O19. |
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| Keywords: | M-type strontium ferrite Solid-state ball-milling method La-Co substituted magnetic properties |
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