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首页> 外文会议>Materials Science Technology Conference and Exhibition >INFLUENCE OF THERMODYNAMICS AND DIFFUSION ON REACTION MECHANISMS DURING GAS/SOLID REACTIONS
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INFLUENCE OF THERMODYNAMICS AND DIFFUSION ON REACTION MECHANISMS DURING GAS/SOLID REACTIONS

机译：热力学和扩散对气/固体反应过程中反应机制的影响

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摘要

The direct link between microstructure and material properties is the core principle underpinning modern material science and engineering. Phase transformations in solids and solidification of melts have been extensively studied to the point where the key elementary processes, process steps and process variables are well understood. Less well investigated and less well understood are the changes taking place during gas/solid reactions. Most studies have focussed determining the rates of overall reactions rather than the structures of the solid products and the reaction mechanisms at the gas/solid interface. Recent research has shown that the reaction mechanisms in these fluid/solid systems and the solid microstruetures formed have direct analogies to those observed in solidification and solid/solid transformation systems. Establishing the fundamental conceptual link between these different classes of systems opens the opportunity to utilise these established theoretical frameworks to improve existing process technologies and to develop and manufacture new material structures.
机译：微观结构和材料特性之间的直接联系是核心原理，巩固了现代材料科学与工程。已经广泛地研究了固体和熔化凝固的相变，在关键基本过程，过程步骤和过程变量很好地理解的那一点上进行了广泛的研究。较少的研究和较少理解的是在气/固体反应期间发生的变化。大多数研究侧重于确定整体反应的速率而不是固体产物的结构和气/固体界面处的反应机制。最近的研究表明，这些流体/固体系统中的反应机制和形成的固体微基团具有直接类似物与在凝固和固体/固体转化系统中观察到的那些。建立这些不同类别系统之间的基本概念链接开辟了利用这些建立的理论框架来改善现有工艺技术和开发和制造新材料结构的机会。

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