Low temperature processes during the synthesis of lanthanum lead borosilicate glasses
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Low temperature processes during the synthesis of PbO-B 2 O 3 -SiO 2 -La 2 O 3 glasses were studied by thermal analysis of the batch mixture of glasses and X-ray powder diffraction analysis of samples that crystallized during invesrtigations of the crystallization ability of the synthesized glasses. The obtained results and available thermodynamic data indicate the formation of PbO·B 2 O 3 , PbO·2B 2 O 3 and La 2 O 3 ·B 2 O 3 ·SiO 2 in the temperature interval 400-700°C.
Keywords:Lanthanum lead borosilicate glasses / Low temperature processes / Thermal analysis / X-ray analysis
Source:Journal of the Serbian Chemical Society, 1997, 62, 11, 1113-1120
- Serbian Chemical Society, Belgrade