核心外结构磁微线的设计,具有多功能应用的理想性质
Si-Da Jiang1,2, Tatiana Eggers3, Ongard Thiabgoh3
1National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China.
Small (Weinheim an der Bergstrasse, Germany)
|February 28, 2025
概括
一种新的多步直流火技术在Co-rich微电线中创建了一个纳米晶核/无形外结构. 这增强了柔软的磁性和巨大的磁阻,同时保持了先进应用的机械强度.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 纳米技术纳米技术
背景情况:
- 无形的Co-丰富的微电线表现出传感器和复合材料的有希望的软磁性和机械性质.
- 制造过程中的残余应力降低了微电线的性能.
- 传统的回火方法在提高磁性软度时,往往会损害机械完整性.
研究的目的:
- 开发一种化技术,增强无形微电线的磁性和机械性质.
- 为了研究纳米晶核/无形外结构的形成.
- 为了确定微观结构和新型复合结构中的特性之间的关系.
主要方法:
- 在已灭的无形Co68.15Fe4.35Si12.25B13.25Zr2微电线上使用多步直流化 (MSDA) 技术.
- 在化过程中改变电流强度,以控制核心内的纳米晶体形成.
- 分析了由此产生的核心/外微观结构及其对磁性和机械特性的影响.
主要成果:
- 成功创建了一个独特的纳米晶核/无形外复合结构.
- 优化纳米晶体密度和大小,通过调整退火电流强度.
- 在软磁性和巨型磁阻抗 (GMI) 方面取得了显著的改进.
- 保持了无形外的优良机械强度.
结论:
- MSDA是一种有效的方法,用于在无形磁性微电线中制造核心/外结构.
- 优化的纳米晶核/形态外结构提供卓越的软磁性和GMI性能.
- 这种方法为开发具有定制性质的先进磁性材料提供了新的途径.
相关概念视频
Magnetic Field Due To A Thin Straight Wire
4.8K
Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.
4.8K
Magnetic Field Due to Two Straight Wires
2.4K
Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
2.4K
Magnetic Force On Current-Carrying Wires: Example
1.4K
In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.
1.4K
Magnetic Field Of A Current Loop
4.4K
Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
4.4K


