粉末冶金技术2011，Vol.29Issue(6)：403-407,5.
过程控制剂对Al2O3/Mo复合粉末细化的影响
Influence of process control agent on the refinement of Al2O3/Mo composite powder
摘要
Abstract
Sol-gel was used to prepare Al2O3/Mo composite powder. The influence of process control agent (PCA)- stearic acid and ethanol on the refinement of Al2O3/Mo composite powder was investigated. The phase and morphology of the composite powder were analyzed by means of X-ray diffractometer and scanning electron microscopy, the particle size distribution of composite powder was tested by the laser particle size distribution tester. The results show that phenomenon of sticking on ball and agglomeration of powder is reduced and powder extraction rate is improved by adding process control agent. The particle size of powder is extremely heterogeneous without process control agent. When using stearic acid and ethanol as PCA, Al2O3/Mo composite powder is gradually refined with the milling time, the particle size is relatively homogeneous. Particle shape experiences a transformation from spherality to flakiness to spherality and the refining rate of powder is higher when using ethanol as PCA. The particle size distribution is more uniform and small size cut is more when using stearic acid as PCA than using ethanol.关键词
过程控制剂/Al2O3/Mo复合粉末/硬脂酸/无水乙醇Key words
process control agent/ Al2O3/Mo composite powder/ stearic acid/ ethanol引用本文复制引用
张丹丹,倪锋,魏世忠,徐流杰..过程控制剂对Al2O3/Mo复合粉末细化的影响[J].粉末冶金技术,2011,29(6):403-407,5.基金项目
国家自然科学基金资助项目(50972039) （50972039）
