The relationships between the theoretical density and porosity of the composites and the repetition cycle are discovered.
从理论上揭示了复合材料的浸渍-裂解周期与材料的理论密度和理论孔隙率之间的关系。
The technology of repressing and re-sintering in powder metallurgy had been used to fabricate a c Cu-C composite materials attaining above 95% of the theoretical density.
采用粉末冶金复压复烧技术制备出高密度的铜碳复合材料，对两种成分铜碳复合材料的显微组织、物理力学性能和耐磨性能进行了对比试验。
A case study on SLS of this Cu-based metal powder to fabricate a gear is carried out. 82% relative theoretical density and transverse dimension error of 1.9% are achieved.
最后给出了激光烧结上述金属粉末制造齿轮的加工实例，其致密度达理论密度的82%，而横向尺寸误差仅为1.9%。
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