Testing theoretical models on experimental data of magnetization of magnetopolymer composites

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Дәйексөз келтіру

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Аннотация

Magnetic properties of magnetopolymer composite materials were studied. Monodisperse and bidisperse theoretical models considering interparticle dipole-dipole interactions were verified using experimental data. It was obtained that the bidisperse approximation well describe the experimental results for real polydisperse composites.

Толық мәтін

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Авторлар туралы

D. Radushnov

Ural Federal University

Хат алмасуға жауапты Автор.
Email: dmitry.radushnov@urfu.ru
Ресей, Yekaterinburg

A. Solovyova

Ural Federal University

Email: dmitry.radushnov@urfu.ru
Ресей, Yekaterinburg

E. Elfimova

Ural Federal University

Email: dmitry.radushnov@urfu.ru
Ресей, Yekaterinburg

A. Chernyshov

North Caucasus Federal University

Email: dmitry.radushnov@urfu.ru
Ресей, Stavropol

A. Zakinyan

North Caucasus Federal University

Email: dmitry.radushnov@urfu.ru
Ресей, Stavropol

S. Kunikin

North Caucasus Federal University

Email: dmitry.radushnov@urfu.ru
Ресей, Stavropol

Әдебиет тізімі

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Әрекет
1. JATS XML
Жүктеу
2. Fig. 1. Magnetization curves of magnetopolymer samples depending on the magnetic field hin for different values ​​of the volume fraction of magnetic nanoparticles φ. The samples were synthesized in the absence of a magnetic field. The symbols indicate experimental data: a) the solid line corresponds to the theoretical results of the monodisperse theory (1), b) the dotted line corresponds to the bidisperse theory (4), (5).

Жүктеу (139KB)
Метадеректер
3. Fig. 2. Magnetization plot for samples with magnetic nanoparticle volume fraction φ = 1.62% depending on magnetic field hin. Polymerization field hpext = 31.831 (a), 397.855 kA m-1. Solid line corresponds to monodisperse theory (1), dotted line — bidisperse theory (4), (5), symbols denote experimental data. The values ​​of the Langevin parameters corresponding to the polymerization fields hpext = 31.831 kA m-1 and hpext = 397.855 kA m-1 for a monodisperse system are ap = 0.84 and ap = 11.07, for a bidisperse system - aps = 0.33, apl = 4.04 and aps = 4.39, apl = 52.98.

Жүктеу (78KB)
Метадеректер
4. Fig. 3. Graph of magnetization depending on the volume fraction of magnetic nanoparticles φ for samples synthesized in a magnetic field of hpext = 397.800 kA m-1 and located in a magnetic field of hin = 15.912 kA m-1. The solid line corresponds to the theoretical results of the monodisperse theory (1); the dotted line corresponds to the bidisperse theory (4), (5); the symbols denote experimental data. The values ​​of the Langevin parameters corresponding to the fields hpext = 397.800 kA m-1 and hin = 15.912 kA m-1 are equal to ap = 11.06 and a = 0.45 for the monodisperse model, and aps = 4.39, apl = 52.97 and as = 0.18, al = 2.13 for the bidisperse model.

Жүктеу (43KB)
Метадеректер

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