| 摘要 |
A heat-resistant glass which has heat resistance sufficient for being free from viscous flowing, e.g., at a temperature of 600 DEG C. or higher, and devitrification resistance adequate for producing a panel of glass, which has, as thermal properties, an expansion coefficient equivalent or close to that of a sealing glass frit, with retaining electrical insulation properties excellent over conventional glass, and which can be used for the production of plate-shaped articles of glass such as a glass substrate, the heat-resistant glass containing, as glass components, - 30-45% SiO2 - 1-10% B2Ohd 3 - 1-7% Al2O3 - 1-17% SrO - 22-less than 35% BaO - 0-5% MgO - and - 0-14% CaO - the above % standing for % by weight, provided that the total amount of MgO+CaO is over 4% to 16% by weight.
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