| 摘要 |
A method for making an article from glass comprises providing a substrate including an outer surface; providing at least a first glass comprising at least two different metal oxides, wherein the first glass has a Tg and Tx, and wherein the difference between the Tg and the Tx of the first glass is at least 5K, the first glass containing less than 20% by weight Si02, less than 20% by weight B2O3, less than 40% by weight P2O5, and less than 50% by weight PbO; heating the first glass at or below ambient pressure to above its Tg such that at least a portion of the glass wets at least a portion of the outer surface of the substrate; and cooling the glass to provide an article comprising ceramic comprising the glass attached to the at least a portion of the outer surface of the substrate. The porosity of the ceramic is less than 20% by volume.
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