NDTnet 1998 Aug, Vol.3 No.8

Peculiarities of State of Ferromagnetic Materials.
M.A. Knyazev - Inst. of Applied Physics, Belarus.
Keywords: Surface Methods
Abstract
It is possible an appearance of such states for ferromagnetic materials which differ from an usual presentation as domains with a magnetization equals to magnetization of saturation. Such states may appear in anisotropic ferromagnetic materials under some special conditions of magnetization by permanent or remagnetization by alternative magnetic field. In such a cases a distribution of magnetization has an inhomogeneous character. Previously, it was found that they represent a field configurations which correspond to topologically nontrivial distributions only. But now a new conditions for appearance of distributions which correspond to coupled states of topologically non-trivial distributions of magnetization have been obtained. A presence of complex topological relief for distribution of magnetization in material is a characteristic feature of such states.Using of magnetic and electromagnetic methods of non-destructive testing of industrial products are always connected with their remagnetization. Consequently, the effect mentioned above may be used for search of new correlation dependencies between magnetic state of material and parameters under testing. It is allow to develop principally new methods non-destructive testing.
Abstract Source:
Book of Abstracts, 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN: 87-986898-0-00
Full-Text Source:
Proceedings of the 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN:
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