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nandhutu金虫 (正式写手)
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1.Mixtures of elemental powders of synthetic graphite(1–2μm), Si (−325 mesh) and PAN of elemental composition 70 wt% [C–25 wt% Si]–30 wt% PAN which is equivalent to the elemental composition of C–17.5wt% Si–30 wt% PAN were subjected to mechanical milling in a high energy shaker mill up to 15h in a stainless steel (SS) vial using 20 SS balls of 2mm diameter (～20 g) with a ball to powder weight ratio 10:1. 2.The PAN solution keeps the ingredients and grinding balls completely submerged。This was helpful to avoid excessive cold welding, agglomeration and temperature build up during milling. |
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weichang
木虫 (著名写手)
prince_of_persia
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1.Mixtures of elemental powders of synthetic graphite(1–2μm), Si (−325 mesh) and PAN of elemental composition 70 wt% [C–25 wt% Si]–30 wt% PAN which is equivalent to the elemental composition of C–17.5wt% Si–30 wt% PAN were subjected to mechanical milling in a high energy shaker mill up to 15h in a stainless steel (SS) vial using 20 SS balls of 2mm diameter (～20 g) with a ball to powder weight ratio 10:1. 将基本粉体与PAN的混合体装入不锈钢容器，使用直径为2mm的不锈钢球（大约20g），在高能振荡研磨机中机械研磨15小时以上。球与粉的重量比为10：1。基本粉体由石墨（1-2微米）与硅（-325目）合成。 PAN of elemental composition 70 wt% [C–25 wt% Si]–30 wt% PAN which is equivalent to the elemental composition of C–17.5wt% Si–30 wt% PAN 这句英文表达相当拖沓。是想表达，混合体的组成为70wt％（C–25 wt% Si）与30wt% PAN，相当于 C–17.5 wt% S-30wt% PAN。 [ Last edited by weichang on 2009-5-23 at 19:30 ] |
3楼2009-05-23 19:25:01
weichang
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2楼2009-05-23 19:05:55
weichang
木虫 (著名写手)
prince_of_persia
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4楼2009-05-23 19:32:18
