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Description:

Critical cooling rate Q for zinc tellurite glass system is
determined based on the time-temperature-transfer (T-T-T) diagrams,
which are compiled by analyzing the crystallized area in the glass
sample libraries annealed simultaneously by a furnace with
temperature gradient. This method reduces the laborious routine
work for preparation, which is needed in the conventional method.
Since the surface/volume ratio of the present samples is large,
their crystallization is mainly governed by heterogeneous
nucleation. Thus, the Q values in this study can be used as a
practical index for the glass products whose surface should be free
of being ground and/or polished, such as fire-polished lenses,
optical fibers and waveguides.

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Keyword: time-temperature-transfer diagram, crystallization tendency, critical cooling rate, glass

Date published: 2002-10-14

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Manuscript type: Author's version (Accepted manuscript)

MDR DOI:

First published URL: https://doi.org/10.1016/S0169-4332(01)01016-9

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Updated at: 2024-01-05 22:14:05 +0900

Published on MDR: 2021-08-14 03:54:58 +0900