Improvement of magnetic softness in nanocrystalline soft magnetic materials by rotating magnetic field annealing

2005 ◽  
Vol 97 (10) ◽  
pp. 10F503 ◽  
Author(s):  
N. Ito ◽  
K. Suzuki
Keyword(s):  
Magnetic Field ◽  
Magnetic Materials ◽  
Rotating Magnetic Field ◽  
Soft Magnetic Materials ◽  
Soft Magnetic ◽  
Magnetic Softness ◽  
Field Annealing

A Micro Diamagnetic Actuator for Micro Beads Levitation and Manipulation

2010 ◽  
Vol 143-144 ◽  
pp. 990-995
Author(s):  
Qun Wang ◽  
Wei Ping Zhang ◽  
Wen Yuan Chen ◽  
Feng Cui ◽  
Shi Peng Li ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Materials ◽  
Experimental Results ◽  
Soft Magnetic Materials ◽  
Theoretic Analysis ◽  
Soft Magnetic ◽  
Main Structure ◽  
Field Control

An efficient and convenient way to levitate and manipulate micro beads is reported, in which coils and soft magnetic materials are used to generate a magnetic field. The levitation is based on diamagnetic buoyancy, and the main structure of this device is made into spiral switch arrays so as to simplify the interconnection and magnetic field control. The design, modeling and fabrication of the device for manipulation of diamagnetic beads is given in detail. Theoretic analysis and experimental results of fabrication indicate the advantages and feasibility of the proposal illustrated here.

A Simple Device for Measuring Losses in Soft Magnetic Materials

2014 ◽  
Vol 802 ◽  
pp. 579-584
Author(s):  
Wagner S. Marinho ◽  
Marcos F. de Campos ◽  
Julio C. Teixeira
Keyword(s):  
Magnetic Field ◽  
Magnetic Materials ◽  
Magnetic Induction ◽  
Electronic Device ◽  
Soft Magnetic Materials ◽  
Soft Magnetic ◽  
Soft Ferromagnetic ◽  
Rapid Characterization ◽  
The Magnetic Field

The aim of this work is the development of an electronic device for the rapid characterization of soft ferromagnetic materials for electrical purposes named singlesheettester(sst). The basis of this study consists in determining the magnetic induction, B and the magnetic field, H, by using a simplified circuit. Results are compared with classicalepsteintest and the obtained losses present an error less than 10%.

scholarly journals Stability of Soft Magnetic Helical Microrobots

Fluids ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 19 ◽  
Author(s):  
Kiarash Samsami ◽  
Seyed Amir Mirbagheri ◽  
Farshad Meshkati ◽  
Henry Chien Fu
Keyword(s):  
Magnetic Field ◽  
Rotating Magnetic Field ◽  
Soft Magnetic Materials ◽  
Steering Control ◽  
Soft Magnetic ◽  
Bulk Fluid ◽  
The Stability ◽  
Magnetic Microrobots ◽  
The Magnetic Field ◽  
Permanent Magnetization

Nano/microrobotic swimmers have many possible biomedical applications such as drug delivery and micro-manipulation. This paper examines one of the most promising classes of these: rigid magnetic microrobots that are propelled through bulk fluid by rotation induced by a rotating magnetic field. Propulsion corresponds to steadily rotating and translating solutions of the dynamics of such microrobots that co-rotate with the magnetic field. To be observed in experiments and be amenable to steering control, such solutions must also be stable to perturbations. In this paper, we analytically derive a criterion for the stability of such steadily rotating solutions for a microrobot made of soft magnetic materials, which have a magnetization that depends on the applied field. This result generalizes previous stability criteria we obtained for microrobots with a permanent magnetization.

Formation of Structure and Properties during Thermomagnetic and Ion-Beam Treatments of Soft Magnetic Materials

2010 ◽  
Vol 168-169 ◽  
pp. 223-226 ◽  
Author(s):  
V.V. Gubernatorov ◽  
Yu.N. Dragoshanskii ◽  
T.S. Sycheva ◽  
Irina I. Kositsyna ◽  
V.A. Ivchenko
Keyword(s):  
Magnetic Materials ◽  
Ion Beam ◽  
Considerable Improvement ◽  
Soft Magnetic Materials ◽  
Structure And Properties ◽  
Soft Magnetic ◽  
Magnetic Alloys ◽  
Soft Magnetic Alloys ◽  
Ion Beam Treatment ◽  
Magnetic Softness

A new way of considerable improvement of properties of soft magnetic alloys is offered. This way actually consists in the use of an ion beam treatment in the manufacturing technology for these alloys. Depending on the properties, which need improvement (magnetic softness or magnetostriction), the ion beam treatment is performed before or after a thermomagnetic treatment.

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