Magnetic shielding properties of YBa2Cu3O7−x thick films deposited on silver cylinders with the continuous detonation spray technique

ABSTRACTAmorphous ribbons (FeNi)78Mo4B17Si, made by melt—spinning technique were prepared as magnetic shielding materials. Cylindrical shields (~0.05mm thick) were fabricated by wrapping ribbons on 20cm long pyrex tubes with 45mm diameter. DC and AC (60Hz, 400Hz, 800Hz, 1 kHz) magnetic shielding data were obtained by following the modified ASTM (A698–74) procedure. For DC magnetic fields, Ni—rich shields showed maximum shielding values at lower applied fields (0.1 0e~l 0e), while Fe—rich shields showed maximum shielding values at higher applied fields (1~5 0e). For AC magnetic fields, the magnetic fields, the magnetic shielding effectiveness was also influenced by skin effect at shield' surfaces. By comparing the data to calculations from shielding theory, there is about 8% magnetic shielding effectiveness induced by skin effect at 1 kHz.

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Structural Dependence of Magnetic Shielding Properties in Al4Li4 Clusters

MATERIALS TRANSACTIONS ◽

10.2320/matertrans.mb200823 ◽

2008 ◽

Vol 49 (11) ◽

pp. 2429-2436

Author(s):

Sang Uck Lee ◽

Young-Kyu Han ◽

Chiranjib Majumder ◽

Rodion V. Belosludov ◽

Hiroshi Mizuseki ◽

...

Keyword(s):

Magnetic Shielding ◽

Structural Dependence ◽

Shielding Properties

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Influence of Interlayer Separation on Magnetic Shielding Properties of 2G HTS Sheets Made of 46 mm Wide RABiTS Tape

IEEE Transactions on Applied Superconductivity ◽

10.1109/tasc.2012.2234818 ◽

2013 ◽

Vol 23 (3) ◽

pp. 8200605-8200605 ◽

Cited By ~ 10

Author(s):

J. Kvitkovic ◽

D. Davis ◽

Min Zhang ◽

S. Pamidi

Keyword(s):

Magnetic Shielding ◽

Shielding Properties

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Magnetic shielding by Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7- delta / thick films

IEEE Transactions on Applied Superconductivity ◽

10.1109/77.233702 ◽

1993 ◽

Vol 3 (1) ◽

pp. 189-192 ◽

Cited By ~ 12

Author(s):

D.B. Opie ◽

M.E. Read ◽

S.K. Remillard ◽

M.J. Brown ◽

W.J. Kossler ◽

...

Keyword(s):

Thick Films ◽

Magnetic Shielding

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Multilayer coatings by continuous detonation system spray technique

Thin Solid Films ◽

10.1016/s0040-6090(97)00524-5 ◽

1998 ◽

Vol 317 (1-2) ◽

pp. 259-265 ◽

Cited By ~ 27

Author(s):

I Fagoaga ◽

J.L Viviente ◽

P Gavin ◽

J.M Bronte ◽

J Garcia ◽

...

Keyword(s):

Multilayer Coatings ◽

Continuous Detonation ◽

Spray Technique

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Characterizing and Testing a Fabric Containing Amorphous Glass-Coated Ferromagnetic Microwires for its Magnetic and Electric Shielding Properties in the Frequency Range (1-3) Ghz

Scientific Bulletin ◽

10.2478/bsaft-2018-0012 ◽

2018 ◽

Vol 23 (2) ◽

pp. 94-102

Author(s):

Simona Miclăuş ◽

Lucian Barbu-Tudoran ◽

Paul Bechet ◽

Octavian Baltag

Keyword(s):

Chemical Elements ◽

Near Field ◽

Magnetic Flux Density ◽

Magnetic Shielding ◽

Frequency Range ◽

Shielding Factor ◽

Amorphous Glass ◽

Shielding Properties ◽

Magnetic Wires ◽

Electric Shielding

Abstract By applying a non-standardized methodology and by using electric- and magnetic-field probes of small dimensions (< 1cm), we experimentally characterized the electromagnetic shielding properties of a fabric containing ferromagnetic microwires weaved on a single direction. Electronic microscopy and X-ray spectroscopy revealed the structure, dimensions and chemical elements content of the amorphous magnetic material. Electric shielding factor proved to be very low in the investigated frequency range, but magnetic shielding factor was high, especially when the weaving direction of the magnetic wires corresponded to the polarization direction of the emitting antenna, and showed some resonances. The magnetic shielding efficiency, if checked against an increasing incident magnetic flux density, proved not to change up to 200 nT. The investigated fabric have been previously proved to be very efficient in shielding the field emitted by a mobile phone in its near field, but present results show that near and far field shielding properties are different.

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