为了研究熔融冰晶石电解质对铝电解槽阴极用耐火材料的侵蚀情况,用化学试剂配制电解质比率分别为2.2、5.0、7.6的3种冰晶石电解质,采用静态坩埚法,在950 ℃保温48 h的条件下,对化学组成不同的3种硅酸铝质耐火砖进行了侵蚀试验.试验结果表明:随着电解质比率的增加,电解质对3种耐火材料的侵蚀都有所增加;在电解质比率相同的情况下,3种耐火砖抗熔融冰晶石侵蚀的性能与其Al2O3与SiO2的含量比、显气孔率和透气度均有一定的关系.
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