| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: frit contains components as follows, wt %: B2O3 - 40.6-42.0; CoO - 0.3-0.7; Na2O - 6.0-6.5; CaO - 6.0-6.5; Al2O3 - 16.0-16.8; TiO2 - 23.2-24.0; Li2O - 0.3-0.7; SiO2 - 5.0-6.0. ^ EFFECT: increas enamel thermostability. ^ 1 tbl |
