当前位置: X-MOL 学术Prog. Solid State Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Magnetic iron nitrides inspired by historic research on α″-Fe 16 N 2
Progress in Solid State Chemistry ( IF 12.0 ) Pub Date : 2018-09-01 , DOI: 10.1016/j.progsolidstchem.2017.06.001
Shinichi Kikkawa , Yuji Masubuchi

Abstract Strong ferromagnetic materials at room temperature are of interest for various magnetic applications such as magnetic recording, sensors, and motors. Gigantic magnetism expected for α″-Fe 16 N 2 thin films had been attracted much attention in terms of its large magnetization per weight in comparison to rare earth iron nitrides R 2 Fe 17 N 3 because these films are made of only iron and nitrogen. It developed much straggling on iron nitride thin film research but inconsistent results were obtained using different preparation methods. A powdered α″-Fe 16 N 2 -like compound was prepared by the ammonolysis of fine α-Fe powder in low temperature below 200 °C to clarify the confusion; the magnetism was not large in α″-Fe 16 N 2 itself but was increased in the intermediate ammonolysis dual-phase mixture product of the α″-Fe 16 N 2 -like compound and residual α-Fe. A way to control the magnetic coercivity was subsequently investigated to utilize the larger magnetization in the α″-Fe 16 N 2 -like compound mixture as magnetic materials similarly to Sm 2 Fe 17 N 3 bonded magnet. Iron nitrides, zinc blende type γ″-FeN and rock-salt type γ ‴-FeN, also decompose at around 500 °C. Thermal decomposition was a disadvantage in the preparation of the iron nitrides; however, iron nanoparticles dispersed composites in AlN matrix were derived from the iron nitrides (Fe,Al)N by thermal treatment including laser heating. Iron nitrides are thus promising magnetic materials for their potential applications in science and technology.

中文翻译:

受 α″-Fe 16 N 2 历史研究启发的磁性氮化铁

摘要 室温下的强铁磁材料在磁记录、传感器和电机等各种磁性应用中受到关注。与稀土氮化铁 R 2 Fe 17 N 3 相比,α''-Fe 16 N 2 薄膜的巨大磁性因其单位重量的大磁化强度而备受关注,因为这些薄膜仅由铁和氮制成。它在氮化铁薄膜研究方面取得了很大进展,但使用不同的制备方法获得了不一致的结果。通过在低于200℃的低温下氨解细小的α-Fe粉末制备了粉末状的α″-Fe 16 N 2 类化合物以澄清混淆;α"-Fe 16 N 2 本身的磁性不​​大,但在α"-Fe 16 N 2 类化合物和残余α-Fe的中间氨解双相混合物产物中磁性增加。随后研究了一种控制矫顽力的方法以利用α''-Fe 16 N 2 类化合物混合物中较大的磁化强度作为类似于Sm 2 Fe 17 N 3 粘结磁体的磁性材料。氮化铁、闪锌矿型 γ″-FeN 和岩盐型 γ ‴-FeN 也在 500 °C 左右分解。热分解是制备氮化铁的一个缺点;然而,铁纳米颗粒分散在 AlN 基体中的复合材料是通过热处理(包括激光加热)从氮化铁 (Fe,Al)N 中衍生出来的。因此,氮化铁在科学和技术中的潜在应用是很有前途的磁性材料。
更新日期:2018-09-01
down
wechat
bug