Phase transformations as a result of thermal annealing of nanocomposite Fe-Ni / Fe-Ni-O particlesстатья
Статья опубликована в высокорейтинговом журнале
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 13 мая 2020 г.
Аннотация:The paper presents the results of а study of changes in structural and magnetic characteristics, as well as phase transformations in Fe-Ni/Fe-Ni-0 nanoparticles obtained Ьу chemical synthesis and subsequent thermal annealing. It was found that the initial nanoparticles are а three-phase system consisting of Fe-Ni-0 oxide with а spinel structure and а Fe-Ni alloy with а face- and body-centered cubic lattices. As а result of thermal annealing, а decrease in the Fe-Ni phase was established with subsequent ordering of the Fe-Ni-0 phase with а decrease in the crystal lattice parameter and an increase in the degree of crystallinity. During resources tests, it was found that for single-phase Fe-Ni-0 nanoparticles, the lifetime is close to 500 discharge/ charge cycles, which is а good indicator of the working life and makes it promising to use Fe-Ni/Fe-Ni-0 nanoparticles as a node mate rials for lithium-ion batteries.