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首页> 外文期刊>Advanced Powder Technology: The internation Journal of the Society of Powder Technology, Japan >Radicalar probes to measure the action of energy on granular materials
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Radicalar probes to measure the action of energy on granular materials

机译：Radicalar探针可测量能量对颗粒材料的作用

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摘要

Measuring the action of energy on matter is a complex problem,especially in the case of granular materials.For example,particle size reduction by grinding generally shows poor overall energetic yields and a significant challenge in this area is to accurately estimate the energy consumed,including that stored in the particles.Fine or ultra-fine grinding processes require a lot of energy,part of which becomes internal energy and can lead to mechanochemical reactions and useful products.We studied the appearance of free radicals during the grinding of alpha-lactose monohydrate by means of electron spin resonance (ESR).These radicals are the same as those induced by gamma-radiation and comparison of ESR spectra intensities with those from ground products allows the determination of an 'equivalent gamma-irradiation dose.This gives a novel concept for characterizing the action of mechanical energy on matter in fine grinding by using molecular probes.This is the first example of the investigation of mechanochemical energy during the fine grinding process.
机译：测量能量对物质的作用是一个复杂的问题，尤其是在颗粒材料的情况下。例如，通过粉碎降低粒度通常显示出较差的总能量产率，而在该领域的一个重大挑战是准确估算消耗的能量，包括精细或超细研磨过程需要大量能量，其中一部分变为内部能量，并且可能导致机械化学反应和有用的产物。我们研究了α-乳糖一水合物研磨过程中自由基的出现通过电子自旋共振（ESR），这些自由基与伽马辐射诱导的自由基相同，并且通过比较ESR光谱强度与来自地面产品的自由基强度，可以确定等效的伽马射线辐射剂量，这给出了一个新颖的概念使用分子探针表征机械能对精细研磨中物质的作用。这是第一个研究实例精细研磨过程中的机械化学能。

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