摘要
分析了泡沫铝材料的发泡过程中气泡长大的动力学过程,推导了气泡长大中气泡半径与时间的关系及理论上球形气孔的最大半径,并依据熔体发泡法制备的不同孔径泡沫铝硅材料的实验结果,推导了此材料孔径与发泡过程中所加入增粘剂铝粉体积分数的关系,为泡沫铝材料中孔结构的控制和制备不同孔径的泡沫铝材料提供了理论指导。
The dynamics of growth of the pores during the foaming process is conducted and the relation between the radius r of the pore and foaming time is carried out, by which the maximum size ot sphere pore is calcula- ted. The effect of changing volume fractions of aluminum powders on the pore sizes obtained in the melt foaming process is derived from the experiment results, which is favorable to pore structure control and fabrication of foamed aluminum with different pore sizes.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2010年第22期77-79,共3页
Materials Reports
基金
863基金资助(2009AA05Z420)
关键词
泡沫铝
孔径
控制
foamed aluminum, pores, control
