Densification Mechanism of Warm Compaction and Powder Mixture Designing Rules

来源期刊：中南大学学报(英文版)2000年第1期

论文作者：CAO Shun-hua HUANG Bai-yun QU Xuan-hui YI Jian-hong

文章页码：4 - 6

Key words：warm compaction; densification mechanism; powder mixture; designing rule

Abstract: By phenomenological analysis of warm compaction, it is found that, compared with the contribution of particle plastical deformation to densification of powder compact,the particle rearrangement is a dominant densification mechanism for powder warm compaction, and the plastical deformation of particles plays an important role in offering accommodating deformation for particle rearrangement and densifying powder compact at the final stage of pressing.In order to attain density gain as high as possible during warm compaction, six rules for designing warm-compacting powder mixtures were proposed in detail.