Hysteresis of the Resonance Absorption in Y–Ba–Cu–O

1998 ◽  
Vol 12 (29n31) ◽  
pp. 3292-3295
Author(s):  
Gy. Kovács ◽  
N. Khatiasvili ◽  
T. Porjesz ◽  
I. Vajda
Keyword(s):  
Magnetic Field ◽  
High Frequency ◽  
Applied Field ◽  
Resonance Absorption ◽  
High Frequency Field ◽  
Hysteretic Behaviour ◽  
Frequency Field ◽  
The Magnetic Field

The effect of weak d.c. magnetic field on the interaction between high–T c superconductors and high frequency field has been studied. The magnetic field (Bres) at which the most intensive change in the absorption could be obtained depended on the previously applied field and displayed a hysteretic behaviour but it did not depend on the frequency.

The stability of an interface between viscous fluids subjected to a high-frequency magnetic field and consequences for electromagnetic casting

1995 ◽  
Vol 287 ◽  
pp. 133-150 ◽  
Author(s):  
Deepak ◽  
J. W. Evans
Keyword(s):  
Magnetic Field ◽  
High Frequency ◽  
Applied Field ◽  
Reasonable Assumption ◽  
Inviscid Fluids ◽  
Electromagnetic Casting ◽  
Frequency Magnetic Field ◽  
High Frequency Magnetic Field ◽  
The Stability ◽  
The Magnetic Field

The stability of an interface between inviscid fluids subjected to a high-frequency magnetic field has been examined previously by Garnier & Moreau (1983). The present paper extends that study to include the viscosity of both fluids in order to estimate the damping rates of the perturbations. Furthermore, Garnier & Moreau made an assumption that the frequency of oscillation of the interface could be neglected compared to the frequency of the applied field; they concluded that the applied field was not destabilizing. That (apparently reasonable) assumption has been lifted in the present work and the consequence is that the magnetic field is seen to lead to instability over a significant range of wavelengths. Application of this analysis to the electromagnetic casting of aluminium is discussed.

The Use of a Magnetic Suspension for the Crucibleless Metal Melting

2020 ◽  
Vol 299 ◽  
pp. 381-385
Author(s):  
K. K. Kim ◽  
Alexander Panychev ◽  
Ludmila Blazhko
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
High Frequency ◽  
Eddy Currents ◽  
Magnetic Suspension ◽  
High Frequency Field ◽  
Frequency Field ◽  
Frequency Magnetic Field ◽  
High Frequency Magnetic Field ◽  
Metal Melting

Nowadays, the magnetic suspension is widely used in metallurgy for crucibleless melting of metals. We carry out the contactless suspension of metal under the inductor (a source of the high-frequency field), using the forces of interaction of the eddy currents, which are induced in the metal with a high-frequency magnetic field causing them. Besides, such a method of the suspension of metals allows to carry out simultaneously its heating and melting at the expense of the energy of the electromagnetic field of suspension

High-frequency field firing of ceramic materials

1994 ◽  
Vol 51 (9-10) ◽  
pp. 319-321
Author(s):  
Yu. I. Bokhan ◽  
V. G. Komar ◽  
V. Z. Misyuvyanets
Keyword(s):  
High Frequency ◽  
Ceramic Materials ◽  
High Frequency Field ◽  
Frequency Field
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