"0022-3093" . "Alcal\u00E1, M." . . . "[1DE69A8279F6]" . . . "Crystallization kinetics; thermal-analysis. GeS2; viscosity"@en . . . "Kinetics of crystal growth of germanium disulfide in Ge0.38S0.62 chalcogenide glass."@en . "4"^^ . "RIV/00216275:25310/05:00003238!RIV08-GA0-25310___" . "The crystal growth kinetics of GeS2 in Ge0.38S0.62 glass has been studied by Differential Scanning Calorimetry (DSC) and microscopy. The linear crystal growth kinetics of both high temperature and low temperature polymorphs has been observed over a relatively broad range of temperatures, i.e. 420 < T < 494 oC that correspond to viscosity of supercooled melt. It seems that 2D nucleated growth is the most probable mechanism of crystallization for high temperature under these conditions. However, there are significant deviations for this model for the crystallization of low-temperature. This might indicate some changes in crystal-melt interfacial energy or break down of Stokes-Einstein relation in that particular case. At temperatures below the temperature range of directly observed crystal growth overlaps with isothermal DSC measurements. In this case overall crystallization kinetics can be described by the Johnson-Mehl-Avrami (JMA) nucleation-growth model for kinetic exponent. The value of activa"@en . "Kinetics of crystal growth of germanium disulfide in Ge0.38S0.62 chalcogenide glass." . "526743" . "RIV/00216275:25310/05:00003238" . . "Kinetika r\u016Fstu krystal\u016F GeS2 ve skeln\u00E9 matrici Ge0.38S0.62 byla studov\u00E1na mikroskopicky a pomoc\u00ED DSC. Kinetika line\u00E1rn\u00EDho r\u016Fstu vysokoteplotn\u00ED i n\u00EDzkoteplotn\u00ED krystalov\u00E9 modifikace byla studov\u00E1na v relativn\u011B \u0161irok\u00E9m teplotn\u00EDm rozmez\u00ED 420 < T < 494 oC, je\u017E odpov\u00EDd\u00E1 viskozit\u00E1m podchlazen\u00E9 kapaliny. Zd\u00E1 se \u017Ee nejpravd\u011Bpodobn\u011Bj\u0161\u00EDm mechanismem krystalizace za t\u011Bchto podm\u00EDnek je pro vysokoteplotn\u00ED modifikaci dvoudimenzion\u00E1ln\u00ED nuklea\u010Dn\u00ED r\u016Fst. U n\u00EDzkoteplotn\u00ED modifikace jsou v\u0161ak znateln\u00E9 odchylky od tohoto modelu. To m\u016F\u017Ee indikovat zm\u011Bny v meziplo\u0161n\u00E9 energii krystal-tavenina nebo \u010D\u00E1ste\u010Dn\u00E9 selh\u00E1n\u00ED Stokes-Einsteinova vztahu pro tento p\u0159\u00EDpad. U teplot pod 500 \u00B0C se mikroskopick\u00E1 m\u011B\u0159en\u00ED p\u0159ekr\u00FDvaj\u00ED s m\u011B\u0159en\u00EDmi entalpick\u00FDmi. V tomto p\u0159\u00EDpad\u011B m\u016F\u017Ee b\u00FDt celkov\u00E1 kinetika krystalizace pops\u00E1na Johnson-Mehl-Avrami (JMA) nuklea\u010Dn\u011B-r\u016Fstov\u00FDm modelem s kinetick\u00FDm exponentem. Hodnota aktiva\u010Dn\u00ED energie nukleace EN = 434 kJ.mol-1 odhadnut\u00E1 z t\u011Bchto experiment\u016F je srovnateln\u00E1 s aktiva\u010Dn\u00ED energi\u00ED visk\u00F3zn\u00EDho toku podchlazen\u00E9 G"@cs . . "N" . "NL - Nizozemsko" . "2"^^ . "11"^^ . "Kinetics of crystal growth of germanium disulfide in Ge0.38S0.62 chalcogenide glass." . "The crystal growth kinetics of GeS2 in Ge0.38S0.62 glass has been studied by Differential Scanning Calorimetry (DSC) and microscopy. The linear crystal growth kinetics of both high temperature and low temperature polymorphs has been observed over a relatively broad range of temperatures, i.e. 420 < T < 494 oC that correspond to viscosity of supercooled melt. It seems that 2D nucleated growth is the most probable mechanism of crystallization for high temperature under these conditions. However, there are significant deviations for this model for the crystallization of low-temperature. This might indicate some changes in crystal-melt interfacial energy or break down of Stokes-Einstein relation in that particular case. At temperatures below the temperature range of directly observed crystal growth overlaps with isothermal DSC measurements. In this case overall crystallization kinetics can be described by the Johnson-Mehl-Avrami (JMA) nucleation-growth model for kinetic exponent. The value of activa" . "557-567" . . "Criado, J." . "P(GA104/04/0072)" . . . . . "351" . "Kinetika r\u016Fstu krystal\u016F GeS2 ve skeln\u00E9 matrici Ge 0,38 S 02,62."@cs . "25310" . "Kinetika r\u016Fstu krystal\u016F GeS2 ve skeln\u00E9 matrici Ge 0,38 S 02,62."@cs . . "Kinetics of crystal growth of germanium disulfide in Ge0.38S0.62 chalcogenide glass."@en . "Journal of Non-Crystalline Solids" . "Sh\u00E1n\u011Blov\u00E1, Jana" . . . "M\u00E1lek, Ji\u0159\u00ED" .