动态热爆炸条件下化学反应阶段对Ni-Ti粉末混合物产物组成的影响

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Russian Physics Journal Pub Date : 2025-03-27 DOI:10.1007/s11182-025-03400-8

N. V. Bukrina, A. G. Knyazeva

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引用次数: 0

摘要

分析了由纯Ni和Ti元素体合成金属间化合物的热力学现象。基于著名的热力学问题，计算了热爆炸和各种加热方式下反应混合物中的残余应力。结果表明，应力与外部加热、放热化学反应放热和成分变化有关。在一维模型中，温度和成分沿反应器半径方向不均匀。

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Effect of chemical reactions staging on the product composition formed from the Ni-Ti powders mixture under conditions of dynamic thermal explosion

Thermal and mechanical phenomena accompanying the bulk synthesis of an intermetallic from pure Ni and Ti elements are analyzed. Based on the well-known problems of thermomechanics, residual stresses in the reacting mixture are evaluated for the conditions of thermal explosion and various heating modes. It is shown that the stresses are associated with external heating, heat release due to exothermic chemical reactions, and composition change. In one-dimensional model, the temperature and composition are not uniform along the reactor radius.

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来源期刊

Russian Physics Journal PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

50.00%

发文量

208

审稿时长

3-6 weeks

期刊介绍： Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.