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Experimental Glass Melting Techniques

  • G. E. Blair
Conference paper

Abstract

The composition range in which glass formation can take place in most systems, depends on the cooling rate from a temperature above the liquidus to the glass transformation temperature. Therefore, any study of a particular system must refer to a uniform cooling rate. In addition, for practical purposes, it is necessary to define the smallest usable volume. This varies from fractions of a gram (in reflective beads) to many kilograms (for massive optics, etc.) Turnbull1 states that any body, however formed, which exhibits diffraction behaviour consistent either with the continuous random model or with a microcrystalline model in which the average crystallite size appears to be no greater than about five molecular diameters, will be considered to be a glass. There are many methods to form glasses but glass formation referred to here will be confined to cooling from an inorganic melt of the same composition as the resultant glass.

Keywords

Glass Formation Optical Glass Index Homogeneity Single Oxide Glass Preparation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    D. Turnbull, “Under What Conditions can a Glass be Formed?” Comtemp Physics, 10, No. 5, 473–488 (1969).Google Scholar
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Copyright information

© Plenum Press, New York 1972

Authors and Affiliations

  • G. E. Blair
    • 1
  1. 1.Kodak Apparatus Division Research LaboratoryEastman Kodak CompanyRochesterUSA

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