Thermal expansion of binary alkaline-earth borate glasses
نویسندگان
چکیده
منابع مشابه
Dependence of N4 upon alkali modifier in binary borate glasses
In this paper we re-examine the alkali dependence of the fraction of four-coordinated borons (N4) in two series of glasses: alkali borates (0·4M2O.B2O3) and mixed lithium caesium borates (0·4(xLi2O+(1-x)Cs2O). B2O3). High field B MAS-NMR experiments were performed to maximise the accuracy of the present results. We found no evidence for an alkali dependence on N4 in either system. In each case ...
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A GLASS is, formally, a solid that solidifies without a well-defined melting point— defined as a singular temperature at which there occurs a discontinuous change in a physical property, for example specific volume, during transition between a liquid state and its corresponding solid state—but instead exhibits a continuous change in that property over a range of temperature. Glasses tend to inh...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards
سال: 1956
ISSN: 0091-0635
DOI: 10.6028/jres.056.010