Raman And B Nuclear Magnetic Resonance Spectroscopic Studies Of Alkaline-Earth Lanthanoborate Glasses

Glasses from the RO.La203.B203 (R=Mg, Ca and Ba) system have been examined. Glass formation is centred along the metaborate tie line, from La(BO2)3 to R(BO2)2. Raman and solid-state nuclear magnetic resonance spectroscopies reveal changes in the metaborate network that depend on both the [R]:[La] ratio and the type of alkaline-earth ion.