Application of the high-frequency loading methods for accelerated determination of the effect of technological, design, and service factors on fatigue resistance. Report 2

1986 ◽  
Vol 18 (3) ◽  
pp. 311-316
Author(s):  
V. A. Kuz'menko ◽  
L. E. Matokhnyuk ◽  
A. V. Voinalovich
Keyword(s):  
Fatigue Resistance ◽  
High Frequency ◽  
Technological Design ◽  
Loading Methods ◽  
Service Factors

Magnetic Permeability and Relaxation Frequency in High Frequency Magnetic Materials.

2001 ◽  
Vol 674 ◽  
Author(s):  
M.I. Rosales ◽  
H. Montiel ◽  
R. Valenzuela
Keyword(s):  
High Frequency ◽  
Domain Walls ◽  
Magnetocrystalline Anisotropy ◽  
Low Frequency ◽  
Frequency Dispersion ◽  
Anisotropy Constant ◽  
Relaxation Frequency ◽  
Resonance Relaxation ◽  
Frequency Behavior

ABSTRACTAn investigation of the frequency behavior of polycrystalline ferrites is presented. It is shown that the low frequency dispersion (f < 10 MHz) of permeability is associated with the bulging of pinned domain walls, and has a mixed resonance-relaxation character, closer to the latter. It is also shown that there is a linear relationship between the magnetocrystalline anisotropy constant, K1, and the relaxation frequency. The slope of this correlation depends on the grain size. Such a relationship could allow the determination of this basic parameter from polycrystalline samples.

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