FIELD: chemistry.
SUBSTANCE: invention pertains to the technology of silicates and relates to glass compounds, used in the production of vacuum-tube devices. The glass consists of the following components with the given percentage mass ratios: SiO2 63.0-66.0; Li2O 0.5-1.0; Na2O 0.5-1.0; K2O 1.0-2.0; SrO 7.0-10.0; BaO 1.0-2.0; CaO 0.5-1.0; Al2O3 1.0-2.0; ZrO2 5.0-7.0; CeO2 0.5-1.0; B2O3 7.0-10.0; P2O5 4.0-6.0.
EFFECT: lower coefficient of thermal expansion of the glass.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| GLASS | 2006 |
|
RU2320562C1 |
| GLASS FOR ELECTROVACUUM DEVICES | 2006 |
|
RU2345002C2 |
| GLAZE | 2006 |
|
RU2318748C1 |
| GLASS | 2006 |
|
RU2325343C1 |
| GLASS | 2006 |
|
RU2334699C1 |
| GLASS | 2006 |
|
RU2335466C1 |
| GLAZE | 2007 |
|
RU2329964C1 |
| ENAMEL COATING | 2007 |
|
RU2347760C2 |
| ENAMEL | 2006 |
|
RU2337076C1 |
| GLAZE | 2006 |
|
RU2315011C1 |
