| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: avanturine glass containing SiO2, Al2O3, CaO, MgO, Cr2O3, B2O3, Na2O, K2O, BaO and WO3, at the following component ratio, mass %: SiO2 - 55.5-60.0; Al2O3 - 4.0-5.0; CaO - 6.0-10.0; MgO - 4.0-5.0; Cr2O3 - 0.43-1.47; B2O3 - 13.0-17.0; Na2O - 1.5-3.0; K2O - 3.5-5.0; BaO - 2.0-3.5; WO3-0.03-0.07. ^ EFFECT: higher refractive index of glass. ^ 1 tbl |
