摘要
以Al-Ce-Ni共晶合金作为研究对象,采用熔体净化剂与循环过热相结合的方法净化合金,循环过热通过高温效应熔解、钝化异质形核质点,熔体净化剂通过化学溶解、物理化学吸附及其组元与异质形核衬底的化学反应去除异质形核质点与衬底,并减缓金属熔体的氧化。实验中使用不同的净化剂进行研究,发现使用80%B2O3+20%Na2O(mol%)净化,在850℃×5min循环过热,熔体发生深过冷的效果最好。
The eutectic alloy of Al-Ce-Ni is experimented with purificant and cyclical superheating. The particles of heterogeneity are liquated and passivated with cyclical superheating. The particles of heterogeneity are removed by reaction with purificant through dissolve and adsorption. The chlorin salt and glass are used as purificant. The effect of purification is significant when using the glass 80% B_2O_3+20%Na_2O as purificant and cyclical superheating at 850 ℃×5 min.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第5期45-47,共3页
Journal of Chongqing University
基金
重庆大学基础应用基础研究基金项目(717411024)
