Thermo-mechanical aspects of the heterogeneous ignition of metals

V. Rosenband

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Thermo-mechanical aspects of the heterogeneous ignition of metals

机译：金属异质着火的热机械方面

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During the heterogeneous oxidation of metallic particles in a gaseous oxidant, a film of oxide usually separates the metal and oxidant, with the reaction rate being governed to a great extent by the protective properties of the film. A theoretical and experimental study of the influence of the failure of the protective oxide film on the metal's heterogeneous ignition has been performed. The possible reasons for the fracture are analyzed; also the critical conditions of the oxide film are estimated. Experiments conducted with aluminum and titanium powders have shown that the fracture of the protective oxide film results in a significant increase in the metal's reactivity. The assumptions of a theoretical analysis are confirmed experimentally.

机译：在气态氧化剂中金属颗粒的异质氧化过程中，氧化物膜通常将金属和氧化剂分开，反应速度在很大程度上取决于膜的保护性能。进行了保护性氧化膜失效对金属异质着火影响的理论和实验研究。分析了可能的断裂原因；还估计了氧化膜的临界条件。用铝和钛粉末进行的实验表明，保护性氧化膜的断裂导致金属的反应性显着提高。理论分析的假设已通过实验得到证实。

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来源
《Combustion and Flame》 |2004年第3期|p.366-375|共10页
作者
V. Rosenband;
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作者单位

Faculty of Aerospace Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类燃料与燃烧;
关键词
metallic particles; heterogeneous ignition; mechanical stress;

机译：金属颗粒;异质着火;机械应力;

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Thermo-mechanical aspects of the heterogeneous ignition of metals

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