摘要:
A process for preparing aluminosilicate glass comprising from 30 to 60 molar % of SiO.sub.2, from 20 to 35 molar % of Al.sub.2 O.sub.3 and from 10 to 30 molar % of a total of rare earth oxides composed mainly of Y.sub.2 O.sub.3, wherein an yttrium concentrate is used as the rare earth oxides composed mainly of Y.sub.2 O.sub.3, and ZrO.sub.2 not in excess of 8 molar % to improve alkali resistance.
摘要翻译:一种制备铝硅酸盐玻璃的方法,其包含SiO 2为30至60摩尔%,Al 2 O 3为20至35摩尔%和主要由Y 2 O 3组成的稀土氧化物的10至30摩尔%,其中使用钇浓缩物作为 主要由Y2O3和ZrO2组成的稀土氧化物不超过8摩尔%,以提高耐碱性。