Effect of Strontium on the Oxidation Kinetics of Aluminum Conductor Alloy AlTi0.1 in the Solid State

IF 0.5 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Inorganic Materials: Applied Research Pub Date : 2024-10-09 DOI:10.1134/S2075113324701028

I. N. Ganiev, F. Sh. Zokirov, R. J. Faizulloev, M. M. Mahmadizoda

引用次数: 0

Abstract

Interaction of aluminum conductor alloy AlTi0.1 (Al + 0.1 wt % Ti) containing 0.01, 0.05, 0.1 and 0.5 wt % strontium additives with atmospheric oxygen in the range 723–823 K without formation of a liquid phase has been investigated by the thermogravimetric method. The kinetic parameters, true rate constants and activation energies of the oxidation process were determined for the studied compositions. It was revealed that, with an increase in the strontium content from 0.01 to 0.5 wt %, the oxidation rate of the initial alloy AlTi0.1 increases with a simultaneous decrease in the apparent activation energy of the oxidation process from 140.0 to 116.9 kJ/mol. An increase in the oxidation rate is explained by the interaction of strontium oxide with aluminum oxide with the formation of spinel, which simplifies the access of oxygen to the reaction surface. The oxidation kinetics of alloys is approximated by a hyperbolic law.

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锶对铝导体合金 AlTi0.1 固态氧化动力学的影响

通过热重法研究了含有 0.01、0.05、0.1 和 0.5 wt % 锶添加剂的铝导体合金 AlTi0.1（Al + 0.1 wt % Ti）在 723-823 K 范围内与大气中氧气的相互作用，且未形成液相。确定了所研究成分氧化过程的动力学参数、真实速率常数和活化能。结果表明，随着锶含量从 0.01 wt % 增加到 0.5 wt %，初始合金 AlTi0.1 的氧化速率增加，同时氧化过程的表观活化能从 140.0 kJ/mol 下降到 116.9 kJ/mol。氧化速率增加的原因是氧化锶与氧化铝相互作用形成尖晶石，从而简化了氧气进入反应表面的过程。合金的氧化动力学近似于双曲线定律。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Inorganic Materials: Applied Research Engineering-Engineering (all)

CiteScore

0.90

自引率

0.00%

发文量

199

期刊介绍： Inorganic Materials: Applied Research contains translations of research articles devoted to applied aspects of inorganic materials. Best articles are selected from four Russian periodicals: Materialovedenie, Perspektivnye Materialy, Fizika i Khimiya Obrabotki Materialov, and Voprosy Materialovedeniya and translated into English. The journal reports recent achievements in materials science: physical and chemical bases of materials science; effects of synergism in composite materials; computer simulations; creation of new materials (including carbon-based materials and ceramics, semiconductors, superconductors, composite materials, polymers, materials for nuclear engineering, materials for aircraft and space engineering, materials for quantum electronics, materials for electronics and optoelectronics, materials for nuclear and thermonuclear power engineering, radiation-hardened materials, materials for use in medicine, etc.); analytical techniques; structure–property relationships; nanostructures and nanotechnologies; advanced technologies; use of hydrogen in structural materials; and economic and environmental issues. The journal also considers engineering issues of materials processing with plasma, high-gradient crystallization, laser technology, and ultrasonic technology. Currently the journal does not accept direct submissions, but submissions to one of the source journals is possible.