A study on dynamic heat assisted magnetization reversal mechanisms under insufficient reversal field conditions

2014 ◽  
Vol 105 (16) ◽  
pp. 162402 ◽  
Author(s):  
Y. J. Chen ◽  
H. Z. Yang ◽  
S. H. Leong ◽  
B. L. Wu ◽  
M. Asbahi ◽  
...  
Keyword(s):  
Magnetization Reversal ◽  
Field Conditions ◽  
Reversal Field

Magnetization Reversal, Field-Induced Transitions and H-T Phase Diagram of Y1-xCexCrO3

2021 ◽  
Author(s):  
Ravi Kiran Dokala ◽  
Shaona Das ◽  
Bruno Weise ◽  
Rohit Medwal ◽  
Rajdeep Singh Rawat ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Magnetization Reversal ◽  
Reversal Field ◽  
T Phase

scholarly journals Временная стабильность намагниченности наночастиц varepsilon-In-=SUB=-0.24-=/SUB=- Fe-=SUB=-1.76-=/SUB=-O-=SUB=-3-=/SUB=-

2018 ◽  
Vol 44 (4) ◽  
pp. 17
Author(s):  
А.И. Дмитриев
Keyword(s):  
Magnetization Reversal ◽  
Activation Volume ◽  
Temporal Stability ◽  
Accelerated Testing ◽  
Magnetic Noise ◽  
Magnetic Viscosity ◽  
Wide Range ◽  
Reversal Field ◽  
Kinetics Of ◽  
The Magnetic Field

AbstractThe kinetics of spontaneous demagnetization in nanoparticles of the exotic epsilon-phase of indium-doped iron(III) oxide (ε-In_0.24Fe_1.76O_3) has been studied using the method of accelerated testing of magnets for temporal stability in a magnetization-reversal field. Time dependences of the magnetization of nanoparticles measured in a wide range of magnetic fields exhibited rectification in semilogarithmic coordinates. The dependence of the magnetic viscosity on the magnetic field has been measured and used for determining the fluctuation field and activation volume. A relationship between the magnetic viscosity and magnetic noise caused by random thermoinduced magnetization reversal in separate nanoparticles is established.

Determination of eddy current losses and hysteresis losses in magnetic circuits of electrical machines

2020 ◽  
pp. 54-58
Author(s):  
S. M. Plotnikov
Keyword(s):  
Eddy Current ◽  
Magnetization Reversal ◽  
Eddy Currents ◽  
Technical Problem ◽  
Electrical Machines ◽  
Eddy Current Losses ◽  
Hysteresis Losses ◽  
Magnetic Circuits ◽  
Core Losses ◽  
Reversal Frequency

The division of the total core losses in the electrical steel of the magnetic circuit into two components – losses dueto hysteresis and eddy currents – is a serious technical problem, the solution of which will effectively design and construct electrical machines with magnetic circuits having low magnetic losses. In this regard, an important parameter is the exponent α, with which the frequency of magnetization reversal is included in the total losses in steel. Theoretically, this indicator can take values from 1 to 2. Most authors take α equal to 1.3, which corresponds to the special case when the eddy current losses are three times higher than the hysteresis losses. In fact, for modern electrical steels, the opposite is true. To refine the index α, an attempt was made to separate the total core losses on the basis that the hysteresis component is proportional to the first degree of the magnetization reversal frequency, and the eddy current component is proportional to the second degree. In the article, the calculation formulas of these components are obtained, containing the values of the total losses measured in idling experiments at two different frequencies, and the ratio of these frequencies. It is shown that the rational frequency ratio is within 1.2. Presented the graphs and expressions to determine the exponent α depending on the measured no-load losses and the frequency of magnetization reversal.

Ichthyotoxicity of the microalga Pseudochattonella farcimen under laboratory and field conditions in Danish waters

2015 ◽  
Vol 116 (3) ◽  
pp. 165-172 ◽  
Author(s):  
NG Andersen ◽  
PJ Hansen ◽  
K Engell-Sørensen ◽  
LH Nørremark ◽  
P Andersen ◽  
...  
Keyword(s):  
Field Conditions

Magnetic Aftereffect and Magnetization Reversal of Sr-Ferrite Fine Particles.

1994 ◽  
Vol 18 (2) ◽  
pp. 193-196 ◽  
Author(s):  
H. Nishio ◽  
H. Taguchi ◽  
F. Hirata ◽  
T. Takeishi
Keyword(s):  
Magnetization Reversal ◽  
Fine Particles ◽  
Magnetic Aftereffect

COMPUTER SIMULATIONS OF MAGNETIZATION REVERSAL DYNAMICS

1993 ◽  
Vol 17 (S_1_MORIS_92) ◽  
pp. S1_255-257 ◽  
Author(s):  
Roscoe C. Giles ◽  
Masud Mansuripur
Keyword(s):  
Computer Simulations ◽  
Magnetization Reversal

Immobilization of Radionuclides on Iron Canister Material at Simulated Near-field Conditions

2008 ◽  
Author(s):  
Daqing Cui ◽  
Ylva Ranebo ◽  
Jeanett Low ◽  
Vincenzo Rondinella ◽  
Jinshan Pan ◽  
...  
Keyword(s):  
Near Field ◽  
Field Conditions
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