| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention is pertaining to the glass compounds used in electrical and radio engineering. The glass contains SiO2, CaO, Fe2O3 and additionally B2O3 and BaO, component ratio is as follows: SiO2 25.0-28.0 Wt%; CaO 27.0-30.0 Wt%; Fe2O3 10.0-15.0 Wt%; B2O3 20.0-27.0 Wt%; BaO 8.0-10.0 Wt%. ^ EFFECT: decreasing of glass melting temperature. ^ 1 tbl |
