| 摘要 |
Glass lasers containing at least 1 mole percent of lithium oxide based on the total glass composition expressed in oxide content and 0 0 compound are treated by immersing or otherwise contacting the glass laser in a molten bath containing a mixture of sodium and lithium salts at an elevated temperature, preferably below the strain point of the glass laser. Optionally, the ion exchange immersion in the molten bath may be followed by washing with acid such as hydrofluoric to produce an acid polish. Glass laser rods so treated develop a compressive stress surface layer and exhibit high modulus of rupture.
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