含空位辐射饱和条件下球形铁纳米颗粒的相稳定性

IF 0.4 Q4 PHYSICS, NUCLEAR

Nuclear Physics and Atomic Energy Pub Date : 2022-12-25 DOI:10.15407/jnpae2022.04.255

A. Shirinyan, Y. Bilogorodskyy, O. Krit

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引用次数: 0

摘要

提出了一种考虑相形成和成核的吉布斯自由能的纳米材料在辐照下相稳定性的热力学新方法。研究了粉末分散和空位饱和度对球形铁纳米粒子辐照稳定性和相变的影响。研究了辐射诱导α-Fe→γ-Fe多晶转变的可能性，并确定了铁纳米粒子的辐射稳定区。结果表明，粒子中累积空位的能量、相变的体能和粒子的表面能之间的竞争是影响辐照铁纳米晶特定行为的原因。

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Phase stability of spherical Ferrum nanoparticles under radiation saturation with vacancies

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.

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来源期刊

Nuclear Physics and Atomic Energy PHYSICS, NUCLEAR-

CiteScore

0.70

自引率

33.30%

发文量

审稿时长

19 weeks

期刊介绍： The journal Nuclear Physics and Atomic Energy presents the publications on Nuclear Physics, Atomic Energy, Radiation Physics, Radioecology, Engineering and Methods of Experiment. The journal includes peer-reviewed articles which are completed works containing new results of theoretical and experimental researches and are of interest for the scientists, postgraduate students, engineers and for the senior students.