阴极材料组织对铝电解钠渗透过程的影响Influence of cathodes material and microstructure on sodium penetration process in aluminum electrolysis
王维,谷万铎
摘要(Abstract):
为了研究工业中使用阴极碳块钠和电解质的渗透过程,用扫描电子显微镜和酚酞试剂法研究铝电解后阴极试样碳块(35%半石墨质、全石墨质和石墨化)钠和电解质的渗透行为。结果表明,阴极材料内部孔隙连通越多,NaF与Na3AlF6在阴极碳块中的浓度越高;阴极碳块石墨化程度越高,渗透到阴极碳块的钠和电解质浓度越低。但钠在3种阴极碳块骨料石墨的"微孔"中渗透量几乎没有差别。
关键词(KeyWords): 碳素阴极;组织结构;石墨化程度;钠渗透
基金项目(Foundation): 河南省自然科学基金项目(102300410132)
作者(Author): 王维,谷万铎
DOI: 10.13289/j.issn.1009-6264.2014.07.026
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