異相境界面優先破壊を考慮した単体分離モデルおよびその実験的検証 : マテリアルリサイクル促進のための定量的指標の確立を目指して

概要

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This paper describes a new liberation model considering preferential breakage at phase boundaries to make a predicted degree of liberation to be feasible. This model is a modification of the Wiegel model, which is one of the most popular and widely acceptable models, introducing an index of "Preferential Breakage Probability, e" at phase boundaries. Concept, structure, simulation results, and validation of the model were shown in this paper, including the results of applicability for various kinds of natural and synthetic composite materials. This index of "Preferential Breakage Probability, e" is considered useful to quantify the facility with liberation for various comminution methods, and this index could also become a good measure to evaluate product design for materials recycling when applying disassembly and solid/solid separation technologies. One of the problems of these kinds of models was the determination of a reasonable unit grain size for materials which have grain size distribution. This paper also describes a solution for such cases.
社団法人資源・素材学会の論文
2005-01-25