Si0[sub]2[/sub] Gel Glasses

L. L. Hench; S. H. Wang; S. C. Park

doi:10.1117/12.964632

26 December 1984 Si0₂ Gel Glasses

L. L. Hench, S. H. Wang, S. C. Park

Proceedings Volume 0505, Advances in Optical Materials; (1984) https://doi.org/10.1117/12.964632
Event: 28th Annual Technical Symposium, 1984, San Diego, United States

Abstract

Glasses are usually formed by solidification from the melt. In the last few years, sol-gel methods have received considerable scientific attention among ceramic and glass scientists as an alternative method of glass formation. The apparent advantages of sol-gel processing over the conventional melting method for glass preparation are: (1) lower temperature of preparation, (2) higher purity, (3) non-crystalline solids outside the range of normal glass formation, (4) increased homogeneity, (5) new crystalline phases from new non-crystalline solids, (6) better glass products from special properties of gels, (7) special optical glass. We suggest that other potential advantages relevant to manufacture of optical components include: 1) rapid production, 2) large shapes, 3) as-formed near net shape, 4) as-formed optically smooth surface, 5) unique indices of refraction, 6) density derived index gradients, 7) unique absorption bands, 8) ease of sealing and joining of components, 9) reproducibility, and 10) computer aided processing.

Citation Download Citation

L. L. Hench, S. H. Wang, and S. C. Park "Si0₂ Gel Glasses", Proc. SPIE 0505, Advances in Optical Materials, (26 December 1984); https://doi.org/10.1117/12.964632

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