| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to the technology of silicates and glase compositions for depositing on facing tiles and decorative and art articles. The black glase contains the following in wt %: SiO2 30.5-36.4; Al2O3 6.0-8.0; B2O3 10.0-14.0; ZnO 5.2-5.4; Na2O 2.0-3.0; K2O 4.8-5.2; Li2O 1.0-2.0; CaO 4.0-6.0; MgO 4.0-6.0; BaO 2.0-2.4; MnO2 3.0-3.2; CoO 4.0-5.0; Fe2O3 4.2-5.0; PbO 8.0-10.0. Frit melting point - 1300C, burning temperature - 950C. ^ EFFECT: low melting point and burning temperature of glase. ^ 1 tbl |
