窒素雰囲気下における粒子-金属板間の衝突帯電
2001 年 38 巻 10 号 p. 695-701
[Correction] J. Soc. Powder Technolo, Japan Vol.38 No.12 (2001) pp.893b-893b
[Correction] J. Soc. Powder Technolo, Japan Vol.38 No.11 (2001) pp.824-824詳細
2001 年 38 巻 10 号 p. 695-701
[Correction] J. Soc. Powder Technolo, Japan Vol.38 No.12 (2001) pp.893b-893b
[Correction] J. Soc. Powder Technolo, Japan Vol.38 No.11 (2001) pp.824-824Impacts of solid particles on a metal target may bring particle electrification. We investigated the impact electrification with particular attention to the effects of environment and metal surface conditions such as elements, hardness and roughness. Electrification in nitrogen atmosphere showed better reproducibility than in wet air atmosphere, and the time course of the electrification was clearly obtained. Our previous electrification model was applied to explain the decrease in electrical charge with elapsed time accounting for the material transfer and the work hardening of metal target. However, only 20% of the decrease could be explained by the previous model. Experiments with several metal targets having different surface roughness revealed that the decrease in charge with elapsed time strongly depends on the surface roughness.
