| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: glaze has following composition, wt %: SiO2 53.0-57.0; Al2O3 1.0-1.5; PbO 14.0-16.0; B2O3 10.0-12.0; CaO 1.5-2.0; MgO 4.0-5.0; Na2O 1.0-2.0; K2O 1.0-2.0; Fe2O3 0.1-0.2; Cr2O3 0.3-0.6; CuO 0.3-0.5; ZrO2 2.0-3.0; ZnO 4.5-5.5. ^ EFFECT: increase of glaze heat resistance. ^ 1 tbl |
