Phase stability of spherical Ferrum nanoparticles under radiation saturation with vacancies

Autor:	A. S. Shirinyan, Yu. S. Bilogorodskyy, O. M. Krit
Jazyk:	English<br />Russian<br />Ukrainian
Rok vydání:	2022
Předmět:	irradiation radiation stability vacancy saturation ferrum nanoparticle phase transition thermodynamics gibbs energy. Atomic physics. Constitution and properties of matter QC170-197
Zdroj:	Âderna Fìzika ta Energetika, Vol 23, Iss 4, Pp 255-262 (2022)
Druh dokumentu:	article
ISSN:	1818-331X 2074-0565
DOI:	10.15407/jnpae2022.04.255
Popis:	A new thermodynamic approach for phase stability of a nanoscale material under irradiation taking into account Gibbs free energy of phase formation and nucleation is proposed. The influence of powder dispersion and vacancy saturation on the radiation stability and phase changes of spherical Ferrum nanoparticles during irradiation is determined. The paper shows the possibility of a radiation-induced α-Fe → γ-Fe polymorphic transition, and also defines the radiation stability zones of Ferrum nanoparticles. It is shown that the competition between the energy of the accumulated vacancies in the particle, the bulk energy of the phase transformation, and the surface energy of the particle is responsible for the specific behavior of irradiated nanocrystalline Ferrum.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/603344ef808841b88b7c38ef1b0ee778 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF