Affiliation:
1. SSPA “Scientific and Practical Materials Research Centre of NAS of Belarus”
Abstract
Magnetostatic shields, based on Ni-Fe alloys, were obtained via electrochemistry method with different thickness of partial magnetic layers. The experimental researches of the magnetic properties and magnetostatic shielding effectiveness of the single-layer and malty-layer cylindrical sample of the shields, based on the electrodeposited Ni80Fe20and Ni50Fe50alloy, are carried out. It has been shown that the shields of gradient type (200 μm Ni50Fe50+200 μm Ni80Fe20and 100 μm Ni50Fe50+300 μm Ni80Fe20), containing layers with different values of saturation induction (Bs), have a higher shielding efficiency than shields of symmetric type (400 μm Ni50Fe50and 400 μm Ni80Fe20). Maximum efficiency of magnetostatic shielding has been noted for 200 μm Ni50Fe50+ 200 μm Ni80Fe20sample. It opens wide prospects for practical application for protection of the microelectronics devices against permanent magnetic fields.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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