Borate (B2O3) is one of the most important glass forming oxides
and has been incorporated into various kinds of glass systems in
order to attain the desired physical and chemical properties. Borate
glasses have been of particular scientific interest for many years
[1–8]. Furthermore, phosphate glasses had several commercial
applications because of high thermal expansion coefficient, low
melting and softening temperature, high electrical conductivity
and optical characteristics [9,10]. Due to the flexibility of borate
and phosphate base glasses, the research of their structure and
properties is important [11,12]. Continuing researches are still
underway [13]. Unfortunately borate glasses alone are not stable
compound even though it is well known as the glass former while
the pure phosphate network is hygroscopic which often limit their
practical uses. Specialized phosphate glasses show promising
application as fast ion conductors, waveguides, optical switches
and lead metaphosphate glasses reveal higher chemical durability
than alkali glasses. Their chemical durability can be enhanced by
the replacement of P2O5 by B2O3.
Borate (B2O3) is one of the most important glass forming oxidesand has been incorporated into various kinds of glass systems inorder to attain the desired physical and chemical properties. Borateglasses have been of particular scientific interest for many years[1–8]. Furthermore, phosphate glasses had several commercialapplications because of high thermal expansion coefficient, lowmelting and softening temperature, high electrical conductivityand optical characteristics [9,10]. Due to the flexibility of borateand phosphate base glasses, the research of their structure andproperties is important [11,12]. Continuing researches are stillunderway [13]. Unfortunately borate glasses alone are not stablecompound even though it is well known as the glass former whilethe pure phosphate network is hygroscopic which often limit theirpractical uses. Specialized phosphate glasses show promisingapplication as fast ion conductors, waveguides, optical switchesand lead metaphosphate glasses reveal higher chemical durabilitythan alkali glasses. Their chemical durability can be enhanced bythe replacement of P2O5 by B2O3.
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