in this system, adding suitable proportion off-sio_2 and f-al_2o_3 powders is beneficial for forming the secondary mullite and improving the properties of castables.
掺入适当比例的氧化铝微粉和氧化硅微粉,有利于系统中二次莫来石的反应生成,可以改善浇注料的性能。
effects of types of alumina materials and the amount of feldspar on crystalline shape of secondary mullite in high-strength aluminous electric porcelain have been discussed in this paper.