颗粒增强复合材料增强体颗粒分布均匀性研究

研究了高能球磨法与常规混合法对ＳｉＣｐ（Ｂ４Ｃｐ）／Ａｌ复合材料增强体颗粒分布均匀性的影响。高能球磨法使增强体颗粒弥散均匀分布于基体中，是实现增强体颗粒均匀分布的最有效的方法之一。常规混合法制备的复合材料中存在增强体颗粒的偏聚现象，颗粒偏聚程度与混粉方式和混粉时间有关，干混存在最佳混粉时间，而湿混时混合物均匀度随混粉时间延长而不断提高。

Research of Spatial Distribution ofreinforcements of SiCp(B4Cp)/Al Composites

Effect of high energy ball milling and general mixing on the spatial distribution of reinforcements of SiCp(B 4Cp)/Al composites was investigated. High energy ball milling, which leads to the dispersed homogeneous distribution of reinforcements in the matrix, is the most effective method for obtaining homogeneous distribution of reinforcements. There are clusters of reinforcements in the composites fabricated by general mixing. The degree of reinforcement clusters is related to mixing medium and mixing time. The most uniform distribution of reinforcements with the increasement of mixing time is obtained by dry blending procedure, however, the distribution of reinforcement is improved with the increasement of wet mixing time.