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Microwave absorbing mechanism of soft magnetic alloy Fe85Si2Al6Cr7 WANG Zhong-you(王忠友), JIANG Jian-jun(江建军), DENG Lian-wen(邓联文), ZHANG Chuan-kun(张传坤), ZHANG Tao-qi(张韬奇) Department of Electronic... for such applications, the soft metallic magnetic materials are a promising and interesting set of materials. Since metallic magnetic materials have large saturation magnetization and the Snoek’s limit......
investigated recently for their high theoretical magnetic properties and relatively low cost. As is well known, the exchange interaction coupling between soft and hard magnetic phases is the key factor... treatment of 700 ℃, 4 min. The annealed powders are composed of hard magnetic phase Nd2Fe14B and soft-magnetic phase α-Fe with grain size of about 50 nm calculated by Scherrer formula. Fig.2 XRD......
; 文献标志码:A 文章编号:1672-7207(2010)02-0460-05 Nanocrystallization and soft magnetic properties of amorphous Fe86Zr7B6Cu1 ribbons... and increase its volume fraction in nanocrystalline soft magnetic alloys, hot isothermal pressing (HIP) was used to anneal amorphous Fe86Zr7B6Cu1 ribbons. Thermal analysis was performed by differential......
不同合金元素对FINEMET合金的性能和纳米结构的影响的研究进展 陈智慧1,严彪1 (1.同济大学材料科学与工程学院,上海,200092;2.上海市金属功能材料重点实验室,上海,200092) 摘要:随着世界范围内对高性能软磁材料的需求日益增加,添加不同合金元素的FINEMET合金的性能及其纳米结构的研究近年来引起了广大科研工作者的兴趣.本文回顾了不同合金元素对软磁合金材料的纳米结构和性能的影响的研究进展,并讨论了不同热处理工艺对合金软磁性能的影响.要更进一步的降低成本和提高材料性能,我们必须对合金成分,合金制备方法及热处理工艺进行优化. 关键词:FINEMET合金; 纳米结构; 软磁性能; finemet alloy; nanostructures; soft magnetic properties; [全文内容正在添加中] ......
P.≥820 W时,可获得相对密度大于98. 4%,单相bcc结构的纳米晶(粒径小于10 nm)块体合金. 关键词:Fe基软磁合金;MA;高压成型;块体材料;纳米晶 中图分类号:TG 139.8;TF 123.3 文献标识码:A Preparation of Fe84Nb7B9 nanocrystalline soft magnetic bulk..., Changsha 410083, China; 2. Institute of Materials Science and Engineering,Tongji University, Shanghai 200050, China) Abstract: Fe84Nb7Bg soft magnetic powders and bulk alloys were......
键词:纳米晶; 软磁合金; 巨磁阻抗; nanocrystalline; soft magnetic alloy; giant magnetoimpedance; [全文内容正在添加中] ......
%(mass fraction) iron, are probably important soft magnetic alloys[1], which have been widely used in industry, such as recording heads, transformers or magnetic shielding materials. Among them, γ-Ni-22Fe... of the magnetocrystalline anisotropy with the rise of the iron content in Ni-Fe system[1], which will deteriorate its performance as a soft magnetic material. Recent experimental and theoretical studies have shown......
to prepare amorphous based magneto-rheological fluid (AMRF). Soft magnetic properties and densities of the amorphous particles and the CI particles were tested and compared. The results indicate...; amorphous particles; carbonyl iron; soft magnetic properties; microstructure 1 Introduction Magneto-rheological fluids (MRFs) are suspensions of magnetic micro-particles in a carrier fluid, usually mineral......
提高软磁合金材料磁性和热处理后尺寸精度的方法孙军艳1,汤健明2(1.陕西省西安市陕西科技大学机电工程学院2.航天16所,西安 710100)摘 要:分析和研究热应力对软磁合金磁性热处理后的尺寸精度影响和机加应力对磁性能的影响,提出综合改善软磁合金热处理后磁性能和尺寸精度的方法.先对材料半精加工,单边留一定的加工余量,再进行磁性热处理,磁性能要求满足后对材料精加工,并留一定的公差余量,最后进行磁性恢复处理,满足磁性能要求后复测零件的最终尺寸.采用该方法可显著提高软磁合金材料零件加工的合格率.关键词:......
Magnetic properties of multi-walled carbon nanotubes encapsulated Fe/Co particles LI Wei-xue(李维学)1, 2, CUI Yong-fu (崔永福) 1, HAO Yuan(郝 远) 2, CHEN Ti-jun(陈体军) 2, DAI Jian-feng (戴剑锋) 1... microscopy, Raman spectroscopy and X-ray diffractometry. The magnetic properties of the products were characterized with vibration sample magnetometer. The TEM results show that MWCNTs have little impurity......