NOTÍCIA 02/2017: Artigo publicado na revista "Materials Chemistry and Physics".

Em parceria com outros autores da UFMA (Imperatriz), do IFMA (Imperatriz) e do IFTO (Araguaína), o professor Edson Carvalho da Paz publicou o artigo "Physical, thermal and structural properties of Calcium Borotellurite glass systemm Borotellurite glass system". Este visou apresentar resultados de pesquisas sobre formas inovadoras para a fabricação de vidro.

Resumo: In this work the glass forming ability in Calcium Borotellurite (CBTx) glass system was studied. Six glass samples were prepared by melt-quenching technique and the obtained samples are transparent, lightly yellowish, with no visible crystallites. The structural studies were carried out by using XRD, FTIR, Raman Spectra, density measurements, and the thermal analysis by using DTA and specific heat. The results are discussed in terms of tellurium oxide content and their changes in structural and thermal properties of glass samples. The addition of TeO₂ increased the density and thermal stability values and decreased glass transition temperature (Tg). Raman and FTIR spectroscopies indicated that the network structure of CBTx glasses is formed by BO₃, BO₄, TeO₃, TeO₃₊₁ and TeO₄ units. CBTx system showed good glass formation ability and good thermal stability, which make CBTx glasses suitable for manufacturing process and a candidate for rare-earth doping for several optical applications.