Devitrification characteristics of GexSe1?x glasses |
| |
Authors: | R Azoulay H Thibierge A Brenac |
| |
Institution: | Centre National d''Etudes des Télécommunications, 92220 Bagneux, France |
| |
Abstract: | Amorphous GexSe1?x compounds have been prepared and carefully characterized in the range 0 ? x ? 0.43 (density and micro-hardness measurements and DTA experiments). By heating samples from the amorphous phase, the crystallization process has been investigated for 0.15 ? x ? 0.30. An immiscibility gap in the vitreous region is determined by optical microscopy, from phase-separation observations; moreover, a new metastable crystalline phase appearing as an intermediate step between phase separation and stable GeSe2 is described. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|