Showing papers by "Robert A. Condrate published in 1987"
TL;DR: In this article, the infrared and Raman spectra were measured for various glasses in the system BaO-TiO2-B2O3, and interpreted on the basis of structure.
32 citations
TL;DR: In this article, the infrared and Raman spectra of cubic and monoclinic SiP 2 O 7 were measured and interpreted by normal coordinate analyses using a modified valence force field.
19 citations
TL;DR: Etude de la structure des verres de gels traites a differentes temperatures and des verre obtenus par la voie classique is described in this article.
Abstract: Etude de la structure des verres de gels traites a differentes temperatures et des verres obtenus par la voie classique. Influence du remplacement de l'oxygene par l'azote
12 citations
TL;DR: In this paper, the infrared spectra were measured and interpreted for various glasses in the Al2O3-SiO3 system that were prepared by sol-gel processes and the results of Raman spectral analysis were also discussed.
5 citations
TL;DR: In this paper, the authors measured infrared and Raman spectra for crystalline 6Li- and 7Li-substituted lithium disilicate using a modified valence force field.
Abstract: Infrared and Raman spectra were measured for crystalline 6Li- and 7Li-substituted lithium disilicate. The spectra were analysed by normal coordinate analysis (NCA) using a modified valence force field. The resulting force constants were consistent with those calculated for related SiO2-containing phases. The Raman spectral results for related glasses were interpreted with respect to the spectral data for the crystalline phase.