Научная электронная библиотека ULRICH'S Periodicals Directory

Сибирский государственный университет
науки и технологий имени академика М.Ф. Решетнева

Сибирский аэрокосмический журнал
ISSN 2712-8970 (Print) ISSN 2782-5760 (on-line)

Сведения об образовательной организации

UDK 548:537.611.44
FORMATION OF STRUCTURE AND MAGNETIC PROPERTIES OF NANOSTRUCTURED BULK Co-BASED ALLOYS AT PLASMA SPRAY DEPOSITION AND DYNAMIC COMPACTION
E. A. Denisova, L. A. Kuzovnikova, S. V. Telegin, V. N. Saunin, А. A. Kuzovnikov
Kirensky Institute of Physics SB RAS; 50/38, Akademgorodok, Krasnoyarsk, 660036, Russian Federation; Krasnoyarsk Institute of Railways Transport; 89, Lado Ketshovely Str., Krasnoyarsk, 660100, Russian Federation; Reshetnev Siberian State Aerospace University; 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation
The bulk nanostructured CoFeNi–SiB alloys were prepared by dynamic compaction and plasma spray deposition techniques. The preparation of bulk samples includes several process steps: obtaining of rapidly quenched amorphous ribbon; annealing of ribbon to embrittlement; ribbon grinding in powder; and finally, plasma spraying or dynamic compaction. The investigations of structure and magnetic properties of bulk samples were carried out by Xray diffraction, electron microscopy and correlation magnetometry. The amorphous/crystalline phase ratio was estimated using the technique of magnetic phase analysis. The effect of processing steps of bulk amorphous alloys preparing on the magnetic characteristics of the samples was investigated. The regimes of dynamic compaction (the loading pressure PL < 3.2 Gpa) and plasma spray deposition (power of the electric arc P < 20 kW, the substrate temperature substrate temperature Ts < 150 oC) were selected so that the saturation magnetization, exchange constant, Curie temperature, local anisotropy field, and ferromagnetic resonance linewight of the bulk samples are identical to those of the rapidly quenched Co58Fe5Ni10B16Si11 ribbon. It was found that the bulk materials produced by shock compaction technique as well as plasma spraying technique are nanostructured. A comparison between the magnetic properties of the CoFeNi–SiB alloys prepared by dynamic compaction and a plasma spray deposition techniques was carried out. The analysis of the magnetic hysteresis loops curves shows that plasma spraying does not cause a change of Hc value (0.3 Oe). The coercive field of shock wave compacted sample is slightly bigger than that of the initial ribbon (0.5 Oe).
Keywords: bulk nanostructured materials, dynamic compaction, plasma spray deposition, magnetic properties.
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Denisova Elena Aleksandrovna – Cand. Sc., reasercher, Kirensky Institute of Physics SB RAS. E-mail: len-den@iph.krasn.ru.

Kuzovnikov Aleksandr Alekseevich – Cand. Sc., Docent, Krasnoyarsk Institute of Railways Transport. E-mail: len-den@iph.krasn.ruю

Kuzovnikova Ludmila Aleksandrovna – Cand. Sc., Docent, Krasnoyarsk Institute of Railways Transport. E-mail: lund@mail.ru.

Telegin Sergey Vladimirovich – Cand. Sc., Docent, Reshetnev Siberian State Aerospace University. E-mail: telegin@sibsau.ru.

Saunin Viktor Nikolaevich – Cand. Sc., leading researcher, Reshetnev Siberian State Aerospace University. E-mail: len-den@iph.krasn.ru.