冷凝速率对铜-钼假合金结构的影响

IF 0.6 4区物理与天体物理 Q4 PHYSICS, APPLIED

Low Temperature Physics Pub Date : 2024-01-11 DOI:10.1063/10.0023891

V. Riaboshtan, A. Zubkov, M. Zhadko, E. Zozulya, E. Zubarev

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引用次数: 0

摘要

研究了不同沉积速率下获得的 Cu-0.3 at.工作中研究了以不同沉积速率获得的 Cu-0.3 at.研究证实，钼对铜基体的晶粒结构具有分散作用，这种作用包括在双组分蒸气冷凝过程中在生长的铜晶粒表面形成的单原子钼吸附层的阻挡作用。Cu-0.3 at.%钼冷凝物的结构具有更高的热稳定性，在退火至 800 °C 时仍能保持原始晶粒的尺寸。冷凝物晶粒结构的热稳定性可解释为钼原子和颗粒的晶界偏析的影响，它降低了晶界自由能及其迁移率。

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The influence of the condensation rate on the structure of Cu-Mo pseudoalloys

The structure and microhardness of Cu-0.3 at. % Mo vacuum condensates obtained at different deposition rates, both in the initial state and after isothermal annealings carried out up to 800 °C, were studied in the work. It has been established that molybdenum has a dispersing effect on the grain structure of the copper matrix, which consists of the blocking effect of monoatomic molybdenum adsorption layers formed on the surface of growing copper grains during the condensation of a two-component vapor. The structure of Cu-0.3 at. % Mo condensates demonstrates increased thermal stability, retaining the size of the original grain upon annealing up to 800 °C. The thermal stabilization of the grain structure of condensates is explained by the influence of grain-boundary segregations of molybdenum atoms and particles, which reduce the free energy of grain boundaries and the rate of their migration.

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来源期刊

Low Temperature Physics 物理-物理：应用

CiteScore

1.20

自引率

25.00%

发文量

138

审稿时长

3 months

期刊介绍： Guided by an international editorial board, Low Temperature Physics (LTP) communicates the results of important experimental and theoretical studies conducted at low temperatures. LTP offers key work in such areas as superconductivity, magnetism, lattice dynamics, quantum liquids and crystals, cryocrystals, low-dimensional and disordered systems, electronic properties of normal metals and alloys, and critical phenomena. The journal publishes original articles on new experimental and theoretical results as well as review articles, brief communications, memoirs, and biographies. Low Temperature Physics, a translation of the copyrighted Journal FIZIKA NIZKIKH TEMPERATUR, is a monthly journal containing English reports of current research in the field of the low temperature physics. The translation began with the 1975 issues. One volume is published annually beginning with the January issues.