Zobrazeno 1 - 10
of 165
pro vyhledávání: '"J.P. Jakubovics"'
Magneto-acoustic emission (MAE) and Barkhausen emission (BE) have been measured from single crystals and polycrystals of Incoloy 904 alloy, in which a uniform, random distribution of coherent spherical precipitates (non-magnetic inclusions) forms on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78007d271b28fe0c5c56fe3b3816b6dd
https://doi.org/10.1080/01418618708214380
https://doi.org/10.1080/01418618708214380
Magnetoacoustic emission (MAE) is suitable technique for studying internal stresses: in engineering components. We have measured MAE in a leaf spring, using a swept magnetizing field with a range of frequencies superimposed, with and without external
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9732a3c61e1bb40a22986bad2637b48
https://doi.org/10.1109/20.489894
https://doi.org/10.1109/20.489894
Magneto-acoustic emission (MAE) and Barkhausen emission (BE) have been measured from polycrystals of pure iron which had been strained by 4.9%. The specimens were then heat-treated at successively higher temperatures. The heat treatments resulted in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b119aabd37915bbadaeb687fc49d739b
https://doi.org/10.1080/01418618708214379
https://doi.org/10.1080/01418618708214379
Magneto-acoustic emission (MAE) has been measured in mild steel and nickel bars subjected to uniaxial tensile stress, in a magnetizing field applied either parallel or perpendicular to the stress axis. The results indicate that MAE is capable of dedu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::290709ed291e8c0a6cbb4df487fb1aaf
https://ora.ox.ac.uk/objects/uuid:0a2e0b76-a0f1-40a3-8d4c-585e2a6f1821
https://ora.ox.ac.uk/objects/uuid:0a2e0b76-a0f1-40a3-8d4c-585e2a6f1821
Autor:
A. Aharoni, J.P. Jakubovics
Publikováno v:
Le Journal de Physique IV. :Pr2-389
The critical radius, R c , below which a spherical particle of NiZn ferrite becomes a single domain in zero applied field, is computed by minimizing the energy under the only constraint that the magnetization configurations have a cylindrical symmetr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3179b83d93058fc57a3d0fc03ea8e736
https://doi.org/10.1051/jp4:1998290
https://doi.org/10.1051/jp4:1998290
Publikováno v:
Journal of Applied Physics. 82:2447-2452
Magnetic induction maps from a sputter-deposited Co/Cr/Co trilayer have been obtained at different points of the hysteresis cycle, using a conventional transmission electron microscope. The sample shows hysteresis, with nearly parallel alignment of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b1b86e1f051fb8e743ffc0b3fedad54
https://doi.org/10.1063/1.366054
https://doi.org/10.1063/1.366054
Publikováno v:
Journal of Magnetism and Magnetic Materials. 153:293-301
Two types of cross-tie domain wall seen in a cobalt film have been studied by Foucault imaging in the transmission electron microscope. The images are taken with a contrast-forming aperture that subtends a smaller angle than the angular deflections o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1c7af876770b797923e8e8ab416287e
https://doi.org/10.1016/0304-8853(95)00551-x
https://doi.org/10.1016/0304-8853(95)00551-x
Autor:
Amikam Aharoni, J.P. Jakubovics
Publikováno v:
IEEE Transactions on Magnetics. 32:4463-4468
Computations of cylindrically-symmetric magnetization distributions are reported for a perfect and isotropic ferromagnetic sphere. The total energy is minimized numerically for various applied fields, with no constraint other than imposing that symme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dddb76ae5169dc8accead53acc1a8dbf
https://doi.org/10.1109/20.538899
https://doi.org/10.1109/20.538899
Publikováno v:
Journal of Magnetism and Magnetic Materials. 126:117-120
Changes in the microstructure and magnetic domain structure of sputtered Fe/Cr multilayers were recorded during in situ heating in an electron microscope. The films showed different behaviour for different Cr spacer layer thicknesses. Three-dimension
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08b3a1e351eac2bebe55f990442e9909
https://doi.org/10.1016/0304-8853(93)90559-k
https://doi.org/10.1016/0304-8853(93)90559-k