Abstract The coexistence of two regimes of aluminum (Al) particle combustion is discussed. A slower regime occurs at a low energy accommodation coefficient (EAC) and is usually observed in Al combustion experiments. A faster regime at high EAC is also possible. The combustion enhancement observed for pre-treated Al particles can be interpreted as a switch from the slower combustion regime to the faster regime. The value of EAC is controlled by the thermionic emission of electrons. A relationship between Al particle pre-treatment and the work function, which governs the thermionic emission, and, therefore, the EAC, is a subject of further studies.

中文翻译：

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两种不同的金属颗粒燃烧机制可能共存

摘要 讨论了两种铝 (Al) 颗粒燃烧状态的共存。在低能量调节系数 (EAC) 下出现较慢的状态，通常在铝燃烧实验中观察到。在高 EAC 下更快的状态也是可能的。对预处理铝颗粒观察到的燃烧增强可以解释为从较慢的燃烧状态向较快的状态转变。EAC 的值由电子的热电子发射控制。铝粒子预处理与控制热电子发射的功函数之间的关系，因此，EAC，是进一步研究的主题。