Zobrazeno 1 - 10
of 60
pro vyhledávání: '"O. Stupakov"'
Autor:
Anna Lynnyk, O. Stupakov, Aleš Jäger, V. Valvoda, V. A. Trepakov, Marina Makarova, M. Čerňanský, Jan Drahokoupil, E.A. Tereshina, Lubomir Jastrabik, Z. Potůček, Alexandr Dejneka, F. Borodavka
Publikováno v:
Materials Chemistry and Physics. 143:570-577
Cubic perovskite SrTi1−xMnxO3 nanopowders with x = 0–0.5, which is much higher than the conventionally believed Mn incorporation limit, and particles sizes 10–80 nm have been successfully synthesized using the citrate sol–gel method. The crys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce8012332aadf5d2d67a5a5135b531d7
https://doi.org/10.1016/j.matchemphys.2013.09.034
https://doi.org/10.1016/j.matchemphys.2013.09.034
Autor:
O. Stupakov
Publikováno v:
Journal of Nondestructive Evaluation. 32:405-412
The potential of the magnetic Barkhausen noise method for local repeatable testing of the magnetic hysteresis properties of electrical steels was investigated. Strips of non-oriented and grain-oriented electrical steels were magnetized by a single yo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c4acaa68de2781538d2f278c111679d
https://doi.org/10.1007/s10921-013-0194-8
https://doi.org/10.1007/s10921-013-0194-8
Autor:
O. Stupakov
Publikováno v:
IEEE Transactions on Magnetics. 48:4718-4726
A newly developed measurement system was comprehensively tested for the industrially attractive case of an open magnetic circuit. Series of industrial electrical steels were magnetized by a single yoke through a gap of several millimeters. According
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::992bbf7e88c9005b81a219372a28971c
https://doi.org/10.1109/tmag.2012.2203139
https://doi.org/10.1109/tmag.2012.2203139
Autor:
O. Stupakov
Publikováno v:
Journal of Magnetism and Magnetic Materials. 324:631-636
This work describes a specially designed setup for magnetic hysteresis and Barkhausen noise measurements. The setup combines two main elements: an improved fast algorithm to control the waveform of magnetic induction and simultaneous direct determina
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cf91c4a0678445f2ccb61863d6414ff
https://doi.org/10.1016/j.jmmm.2011.08.058
https://doi.org/10.1016/j.jmmm.2011.08.058
Publikováno v:
NDT & E International. 44:490-494
Surface decarburization of steel was non-destructively and quantitatively investigated by magnetic hysteresis. Flat samples were prepared from spring steel 54SiCr6 and decarburized layers of different thickness were produced on their surfaces by anne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25c1c3d4de2b9a4938ddb58e455fcc46
https://doi.org/10.1016/j.ndteint.2011.04.010
https://doi.org/10.1016/j.ndteint.2011.04.010
Publikováno v:
Journal of Magnetism and Magnetic Materials. 323:1692-1697
Industrially unfavorable process of steel surface decarburization was induced by annealing in air. Two methods of after-anneal surface treatment were used: an acid pickling and a sand blasting. The obtained decarburized layers were examined by optica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::918ec1ca1164282bd48ca9e3dc17cd98
https://doi.org/10.1016/j.jmmm.2011.01.039
https://doi.org/10.1016/j.jmmm.2011.01.039
Publikováno v:
NDT & E International. 43:671-676
The applicability of magnetic techniques (hysteresis and Barkhausen noise) in the detection of plastic deformation was comprehensively studied. Structural low-carbon steel subjected to uniaxial plastic tension was accurately measured for a wide range
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efc7b3074dba2766099676215e8b407c
https://doi.org/10.1016/j.ndteint.2010.07.004
https://doi.org/10.1016/j.ndteint.2010.07.004
Publikováno v:
IEEE Transactions on Magnetics. 46:517-520
In this work the potential of the Barkhausen noise technique for testing of the magnetic properties of electrical steels was studied. Different grades of nonoriented and grain oriented steels were tested in the quasi-static magnetization regime. A ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c49d1dd650d6f231e5d952b5ca52046
https://doi.org/10.1109/tmag.2009.2030415
https://doi.org/10.1109/tmag.2009.2030415
Publikováno v:
Journal of Magnetism and Magnetic Materials. 321:2670-2676
Three series of samples of low-carbon steel were investigated by the method of magnetic adaptive testing (MAT). The samples were plastically deformed by cold rolling to five consecutive stages of deformation. Samples in one series were magnetically c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe99fcf90d7e44f7fb426424288f11ba
https://doi.org/10.1016/j.jmmm.2009.03.061
https://doi.org/10.1016/j.jmmm.2009.03.061
Publikováno v:
Measurement. 42:706-710
This work studies the conditions of controllable sample magnetization for local hysteresis and Barkhausen noise measurements. These non-destructive techniques usually utilize the sensor, based on a U-shaped single yoke magnet. Its magnetization poten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47124c20fcc33a6e134bda4b2d248790
https://doi.org/10.1016/j.measurement.2008.11.005
https://doi.org/10.1016/j.measurement.2008.11.005