About: Crystallization kinetics in Se-Te glassy system

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Description	Differential scanning calorimetry measurements were used to studycrystallization in the Se(y)Te((1) (-) (y)) glassy system under non-isothermal conditions. The examined compositions were y = 0.1, 0.2 and 0.3. The crystallization kinetics was described in terms of the Johnson-Mehl-Avrami nucleation-growth model. It was found that with the addition of tellurium into the selenium matrix the apparent activation energy of the crystallization process monotonically increases and, more importantly, the parameter of the JMA model m decreases. This change in the crystallization mechanism was interpreted as a gradual crossover from surface to bulk process. Boils processes are competitive and proceed simultaneously in glasses with low tellurium content, while in the case of increased Te content the surface crystallization mechanism recedes. The transition between mechanisms was discussed in terms of changes in molecular structure of the material. Differential scanning calorimetry measurements were used to studycrystallization in the Se(y)Te((1) (-) (y)) glassy system under non-isothermal conditions. The examined compositions were y = 0.1, 0.2 and 0.3. The crystallization kinetics was described in terms of the Johnson-Mehl-Avrami nucleation-growth model. It was found that with the addition of tellurium into the selenium matrix the apparent activation energy of the crystallization process monotonically increases and, more importantly, the parameter of the JMA model m decreases. This change in the crystallization mechanism was interpreted as a gradual crossover from surface to bulk process. Boils processes are competitive and proceed simultaneously in glasses with low tellurium content, while in the case of increased Te content the surface crystallization mechanism recedes. The transition between mechanisms was discussed in terms of changes in molecular structure of the material. (en)
Title	Crystallization kinetics in Se-Te glassy system Crystallization kinetics in Se-Te glassy system (en)
skos:prefLabel	Crystallization kinetics in Se-Te glassy system Crystallization kinetics in Se-Te glassy system (en)
skos:notation	RIV/00216275:25310/11:39892383!RIV12-GA0-25310___
http://linked.open...avai/predkladatel	Fakulta chemicko-technologická
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA104/08/1021)
http://linked.open...iv/cisloPeriodika	16-17
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Svoboda, Roman Krbal, Miloš Málek, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	192374
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/11:39892383
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Se-Te; JMA model; DSC; Crystallization kinetics (en)
http://linked.open.../riv/klicoveSlovo	Crystallization kinetics DSC JMA model Se-Te
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[CD9A83C3C331]
http://linked.open...i/riv/nazevZdroje	Journal of Non-Crystalline Solids
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Phase transformations in chalcogenide materials for data storage media
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	357
http://linked.open...iv/tvurceVysledku	Krbal, Miloš Málek, Jiří Svoboda, Roman
http://linked.open...ain/vavai/riv/wos	000294038500014
issn	0022-3093
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.jnoncrysol.2011.05.002
http://localhost/t...ganizacniJednotka	25310
is http://linked.open...avai/riv/vysledek of	Crystallization kinetics in Se-Te glassy system Crystallization kinetics in Se-Te glassy system

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