材料的蠕变性能受显微结构影响，牢固的莫来石网络骨架是制备低蠕变耐火材料的关键；
The refractories prepared with high impurity raw materials have poor creep resistance because of the high glass phase content and its low viscosity ;
材料的蠕变性能受显微结构影响，牢固的莫来石网络骨架是制备低蠕变耐火材料的关键；
The refractories prepared with high impurity raw materials have poor creep resistance because of the high glass phase content and its low viscosity ;
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