铝电解惰性阳极近10年发展状况

铝电解惰性阳极的研究和应用对环境、能源和国民经济有着深远的影响.概述了近10年来4种铝电解惰性阳极的最新进展,评述了它们各自的优点及存在的问题,面临的挑战及应用前景.其中金属陶瓷、金属合金和梯度材料是当前研究的重点.尽管它们的设计方案不同,其原理都是利用金属改善阳极的导电导热性、抗热震性和可加工性;陶瓷或在阳极表面形成陶瓷以抵抗熔融冰晶石的腐蚀.

Advance in Inert Anode for Aluminum Electrolysis

The research and application of inert anode for aluminum electrolysis have great effects on environment, energy sources and national economy. In this paper, the new advance of inert anode in the past ten years is reviewed. The problems and challenges of four kinds of inert anode and their future application are described. Currently the cermets,alloys and functional grade materials(FGMs)are focus of researches. Although their design precept are different, they have same principium,namely,the metal phase can prove the electric and thermal conduction, shock-resistance and fabrication properties of the anode,and ceramic phase or ceramic phase formed at the surface of anode can prove the corrosion-resistance of anode in cryolite melts.