Formation of second-phase inclusions in molten As2Se3 via chemical transport of carbon

Authors
Churbanov, MF Gerasimenko, VV Malygina, LS Smetanin, SV Suchkov, AI Shiryaev, VS Filatov, DO Kruglov, AV
Citation
Mf. Churbanov et al., Formation of second-phase inclusions in molten As2Se3 via chemical transport of carbon, INORG MATER, 37(4), 2001, pp. 339-341
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INORGANIC MATERIALS
ISSN journal
00201685 → ACNP
Volume
37
Issue
4
Year of publication
2001
Pages
339 - 341
Database
ISI
SICI code
0020-1685(200104)37:4<339:FOSIIM>2.0.ZU;2-A
Abstract
Experimental evidence is presented that, in a closed system containing the As2Se3 melt and vapor, a temperature gradient gives rise to the chemical tr ansport of carbon, combined with Se, from the hot (700-900 degreesC) to the cold (600 degreesC) zone. As a result, submicron-sized (0.07-0.18 mum) car bon inclusions are formed in the As2Se3 melt. The results shed light on the role of second-phase inclusions in the degradation of the optical quality of glassy As2Se3.