摘要
以电熔氧化镁细粉、ρ-Al_2O_3、α-Al_2O_3微粉和镁铝尖晶石微粉为主要基质原料,研究了镁铝尖晶石微粉对氧化镁-尖晶石浇注料基质流变性能的影响。研究表明:氧化镁-尖晶石浇注料的基质具有近Bingham流体的特征,随着镁铝尖晶石微粉加入量的增多,基质的屈服应力不断升高。由黏度-时间曲线得出,氧化镁-尖晶石浇注料中镁铝尖晶石微粉的加入量不宜超过6%(w)。
引文
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