Details

Autor(en) / Beteiligte

• RABINAL, M K
• Rao, N Ramesh
• Sangunni, K S
• Gopal, E S R

Titel

Non-isothermal transformation of Pb-modified Ge - Se glasses

Ist Teil von

• Philosophical magazine. B. Physics of condensed matter. Electronic, optical and magnetic properties, 1994-07, Vol.70 (1), p.89-99

Ort / Verlag

London: Taylor and Francis

Erscheinungsjahr

1994

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• DSC studies have been carried out on Ge\+v\x\-v\Se\+v\80-x\-v\Pb\+v\20\-v\ (17\ < \x\ < \24) bulk glasses, which exhibit a change from p- to n-type conduction at x=21 at. per cent. All the samples show a single-stage crystallization followed by a single-stage glass transition. The dependence of glass transition temperature on composition shows a maximum at x=21 at. per cent. Crystallization kinetics have been analysed using the Kissinger method. The crystallization activation energy and the frequency factor calculated using this method for different compositions show anomalies at x=21 at. per cent. All the samples show the existence of two distinct melting points. (Original abstract-amended)