素材物性学雑誌
Online ISSN : 1884-6610
Print ISSN : 0919-9853
ISSN-L : 0919-9853
初期充填時における粉体嵩密度の静電気による制御可能性について
昌子 智由
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ジャーナル フリー

1998 年 11 巻 2 号 p. 45-50

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Today, the parts of computer and communication instrument are requested to be accurate and reliable. Many parts in instruments are ceramics and are produced via powder handling on the way of the ceramics manufacturing processes. In this case, the final performance of products are effected by the powder handling. First of all the bulk density of powder has some effects on sintered powder compact. This shows that even if chemical components are same, the final performance of products are different each other depending on bulk density.
In this paper, the application of electrostatic effect on initial bulk density of powder in a cell is taken notice. And it is experimentally discussed using X-ray radiograph system. As the results, average equivalent bulk density at one point packing is pointed out to decrease as applied voltage increases, and at two point packing it keeps constant independent of electrostatic effect.
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