Titre du document / Document title

The glass transition temperature of lithium borosilicate glasses related to atomic arrangements

Auteur(s) / Author(s)

BOEKENHAUER R. ; HONGXUN ZHANG ; FELLER S. ; BAIN D. ; SHYAM KAMBEYANDA ; KARIM BUDHWANI ; PONNAPPA PANDIKUTHIRA ; FAISAL ALAMGIR ; PETERS A. M. ; MESSER S. ; LOH K. L. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

Coe coll., physics dep., Cedar Rapids IA 52402, ETATS-UNIS

Résumé / Abstract

The glass transition temperatures, T_g, of a large number of lithium borosilicate glasses were measured over an exceptionally wide range of alkali oxide to boron oxide ratios, R, for several fixed silica to boron oxide ratios, K. In addition, T_gs were measured in the JLi₂O.SiO₂ system over the range 0<J<1.75. In the borosilicates, for each K family two maxima were found in the trends for T_g: the first was associated with a maximum in the fraction of four-coordinated borons present; the second was associated with the orthoborate-orthosilicate composition. The trends for T_g were analyzed on the basis of a proportional sharing of the alkali with the borate and silicate subsystems for R above a certain critical value of R defined as R₀

Revue / Journal Title

Journal of non-crystalline solids   ISSN 0022-3093   CODEN JNCSBJ 

Source / Source

1994, vol. 175, n^o2-3, pp. 137-144 (22 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Amsterdam, PAYS-BAS  (1969) (Revue)

Mots-clés anglais / English Keywords

Glass transformations ; Borosilicate glass ; Quantity ratio ; Atomic arrangement ; Coordination number ; Experimental study ; DSC ; Structural models ; Lithium compounds ; Ternary systems ; Quaternary compounds ; Inorganic compounds ;

Mots-clés français / French Keywords

Transformation vitreuse ; Verre borosilicate ; Effet concentration ; Arrangement atomique ; Coordinence ; Etude expérimentale ; DSC ; Modèle structure ; Lithium composé ; Système ternaire ; Composé quaternaire ; Système B2O3 Li2O SiO2 ; B Li O Si ; Composé minéral ;

Mots-clés espagnols / Spanish Keywords

Arreglo atómico ;

Localisation / Location

INIST-CNRS, Cote INIST : 14572, 35400004196037.0040