ThemullitizationofandalusitefromXinjiang,ChinaandinfluenceofaggregatesonpropertiesofaluminosilicaterefractorieswerestudiedbyXRD,SEM,EDS,DSC.Itwasfoundthatmullitizationwasobviousat1400℃,butconsiderableat1500℃.TherefractorieswithcorundumaggregateshadthehighestRULandthelowestcreeprate,butrefractorieswithbauxiteaggregateshadthelowestRULandthehighestcreeprate.