Abstract
IT is true that such theoretical work on problems associated with annealing of glass must be of a tentative nature until adequately supported by experiments, but its value lies in that it provides guidance for the design and interpretation of experiments. Without such guidance there is, for example, confusion between delayed elasticity and viscosity change with time ; the influence of stabilization with respect to temperature is also enigmatical. In Dr. Jones‘s own experiments1 no attempt was made to stabilize the glass with respect to temperature. His results are particularly interesting for this very reason, because in his bending test—involving an averaged effect for both tension and compression together— there are theoretical grounds for supposing concurrent temperature stabilization to be without influence. Dr. Jones, in finding this experimentally, erroneously concludes the effect to be absent.
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Jones, G. O., J. Soc. Glass Tech., 28, 432 (1944).
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COX, S. Annealing of Glass. Nature 161, 813 (1948). https://doi.org/10.1038/161813b0
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DOI: https://doi.org/10.1038/161813b0
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