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100 _a20220126a2018 k y0engy50 ba
101 0 _aeng
135 _adrgn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aDefects level evaluation of LiTiZn ferrite ceramics using temperature dependence of initial permeability
_fA. V. Malyshev, A. B. Petrova, A. N. Sokolovsky, A. P. Surzhikov
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 25 tit.]
330 _aThe method for evaluating the integral defects level and chemical homogeneity of ferrite ceramics based on temperature dependence analysis of initial permeability is suggested. A phenomenological expression for the description of such dependence was suggested and an interpretation of its main parameters was given. It was shown, that the main criterion of the integral defects level of ferrite ceramics is relation of two parameters correlating with elastic stress value in a material. An indicator of structural perfection can be a maximum value of initial permeability close to Curie point as well. The temperature dependences of initial permeability have analyzed for samples sintered in laboratory conditions and for the ferrite industrial product. The proposed method allows controlling integral defects level of the soft ferrite products and has high sensitivity compare to typical X-ray methods.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tJournal of Magnetism and Magnetic Materials
463 _tVol. 456
_v[P. 186-193]
_d2018
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aдефекты
610 1 _aкерамика
610 1 _aтемпературные зависимости
610 1 _aпроницаемость
701 1 _aMalyshev
_bA. V.
_cSpecialist in the field of electrical engineering
_cSenior researcher at Tomsk Polytechnic University, Candidate of Physics and Mathematics (PhD Phys.-Math.)
_f1978-
_gAndrei Vladimirovich
_2stltpush
_3(RuTPU)RU\TPU\pers\30965
701 1 _aPetrova
_bA. B.
_cspecialist in the field of non-destructive testing
_cAssociate Scientist of Tomsk Polytechnic University
_f1992-
_gAnna Borisovna
_2stltpush
_3(RuTPU)RU\TPU\pers\36438
701 1 _aSokolovsky
_bA. N.
_gAleksey Nikolaevich
701 1 _aSurzhikov
_bA. P.
_cphysicist
_cProfessor of Tomsk Polytechnic University, doctor of physical and mathematical sciences (DSc)
_f1951-
_gAnatoly Petrovich
_2stltpush
_3(RuTPU)RU\TPU\pers\30237
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа неразрушающего контроля и безопасности
_bОтделение контроля и диагностики
_h7978
_2stltpush
_3(RuTPU)RU\TPU\col\23584
801 2 _aRU
_b63413507
_c20220126
_gRCR
856 4 _uhttps://doi.org/10.1016/j.jmmm.2018.02.032
942 _cCF