Abstract

Densities, refractive indices, and specific temperatures of fluoroindate glasses containing various divalent fluorides RF 2 (R=Sn, Zn, Sr and Ba) have been measured. The thermal stability of glass against devitrification decreased in the order BaP 2>SrF 2>ZnF 2 when BaF 2, SrF 2 and ZnF 2 were replaced by SnF 2. On the other hand, glass thermal stability increased at first, then decreased with the further addition of BaF 2, when BaF 2 substituted for SrF 2. Similar phenomena have been observed for the glass-forming ability. Relationships between the properties and structure of glasses have been discussed.

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