Қатты фазалық синтез әдісімен синтезделген YBCO композитінің  асқынөткізгіш қасиеттеріне азот тотығының әсері

С. Төлендіұлы; С.М. Фоменко; Н.Т. Рахым; Ш.Д. Әсілхан; Б.А. Карибаев; Ә.Б. Совет; М.Т. Бекджанова; Қ. Болатжан

doi:10.18321/cpc24(1)47-58

Authors

S. Tolendiuly Institute of Combustion Problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan
S.M. Fomenko Institute of Combustion Problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan
N.T. Rakhym Institute of Combustion Problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan; Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty, Kazakhstan
Sh.D. Asylkhan Institute of Combustion Problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan
B.A. Karibayev Institute of Combustion Problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan; Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty, Kazakhstan
A.B. Sovet Institute of Combustion Problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan
M.T. Bekjanova Institute of Combustion Problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan
K. Bolatzhan Institute of Combustion Problems, Bogenbay Batyr Str., 172, Almaty, Kazakhstan; Al-Farabi Kazakh National University, Al-Farabi Ave., 71, Almaty, Kazakhstan

DOI:

https://doi.org/10.18321/cpc24(1)47-58

Keywords:

YBCO, solid-phase synthesis, superconductor, N₂O atmosphere

Abstract

This study explores the effect of nitrous oxide (N₂O) on the synthesis of high-temperature superconductor YBCO via the solid-phase synthesis method. Due to its ability to decompose at high temperatures and release oxygen, N₂O was considered a potential alternative oxygen source. The material underwent thermal treatment in an N₂O atmosphere for 8, 10, and 12 hours, followed by post-oxygenation in an O₂ flow. The phase composition and structure were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM), while the superconducting properties were evaluated through magnetic measurements using the PPMS system. The sample treated for 10 hours exhibited predominant Y-123 phase formation, enhanced microstructural densification, a superconducting transition temperature up to 91.8 K, and a strong diamagnetic response. These findings demonstrate the viability of using N₂O as an alternative oxidizing agent in the synthesis of high-temperature superconductors.

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