Mahadevan, Sudha and Giridhar, A (1996) Silver as a dopant and as a constituent in As-Ag-Te glasses: mean atomic volume and Tg. Journal of Non-Crystalline Solids, 197 (2amp;3). pp. 219-227.
Full text not available from this repository.Abstract
The variations of the mean atomic volume, V, the glass transition temperature, Tg, and the activation energy for glass transition, Et, with composition have been reported for (As2Te3)1-xAgx and (As2Te3)-(Ag2Te) glasses; the glasses were prepared by a two-stage melt-quenching method. For the (As2Te3)1-xAgx glasses, changes in the nature of dependences of V, Tg and Et occur at the composition with Ag content of 1 atomic per cent (at.%). Analysis of these results indicates that, for Ag contents ? 1 at.%, Ag particles are uniformly dispersed in the network of the As2Te3 glass, without affecting either the short range or the medium range order of the parent glass. For Ag contents ? 3.5 at.%, Ag forms Ag-Te bonds, and the observed variation of the properties can be explained by assuming the resulting three component glasses to be homogeneous mixtures of (As2Te3) and (Ag2Te) units.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Activation energy; Chemical bonds; Composition; Glass transition; Quenching; Silver; Temperature; Arsenic silver tellurium glass; Mean atomic volume; Two stage melt quenching method; Glass; |
| Subjects: | CHEMISTRY AND MATERIALS > Chemistry and Materials (General) |
| Depositing User: | Mr Vijaianand SK |
| Date Deposited: | 07 Jan 2005 |
| Last Modified: | 24 May 2010 04:08 |
| URI: | http://nal-ir.nal.res.in/id/eprint/279 |
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