Search Results - "Kozdraś, A."

Photo- and thermo-stimulated structural relaxation in As–S glasses by Kozdras, A.

“…Homogeneous AsxS100−x glasses (25≤x≤42) are investigated with conventional differential scanning calorimetry. Enthalpy losses during structural relaxation are…”
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Kinetics of light-assisted physical ageing in S-rich arsenic sulphide glasses by KOZDRAS, A

“…The obtained results show that kinetics of light-assisted physical ageing in S-rich glasses can be well fitted with stretch-exponential Kohlrausch-type…”
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Magnetic and structural studies of the rapidly solidified amorphous and nanocrystalline Pr9Fe65W4B22 alloys by Filipecka, K., Pawlik, P., Kaszuwara, W., Kozdraś, A., Pawlik, K., Filipecki, J.

“…In the present work, the Pr9Fe65W4B22 magnets in the form of melt-spun ribbons of various thicknesses and suction-cast 1 mm diameter rods were investigated…”
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On the compositional diversity of physical aging kinetics in chalcogenide glasses by Shpotyuk, O., Kozdras, A., Balitska, V., Golovchak, R.

“…Compositional features of enthalpy losses ΔH(t) caused by long-term physical aging at normal conditions are studied at the example of Se-rich chalcogenide…”
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Optical and thermal properties of Sb/Bi-modified mixed Ge-Ga-Se-Te glasses by Golovchak, R., Kozdras, A., Hodge, T., Szlęzak, J., Boussard-Pledel, C., Shpotyuk, Ya, Bureau, B.

“…The non-isothermal crystallization kinetics of novel BixGa5Ge20Sb10-xSe45Te20 (x = 1,3,5,10) glasses are studied with differential scanning calorimetry method,…”
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Structural transformation caused by crystallization in the Ge-Ga-S(CsCl) glasses by Klym, H., Kozdras, A., Ingram, A., Calvez, L.

“…X-ray diffraction and calorimetric investigations were performed for 80GeS 2 -20Ga 2 S 3 , 82GeS 2 -18Ga 2 S 3 and 84GeS 2 -16Ga 2 S 3 chalcogenide glasses. It…”
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Kinetics of light-assisted physical ageing in chalcogenide glasses by Golovchak, R., Kozdras, A., Shpotyuk, O.

“…A fundamental understanding of glass relaxation under ambient temperatures, as well as under the external influences is vital to the glass and polymer science…”
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The Evolution of Phase Constitution and Magnetic Properties of the Annealed Pr-Fe-B-W Alloy Ribbons by Filipecka, K., Pawlik, P., Kozdraś, A., Filipecki, J., Pawlik, K.

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Remedial insight on ageing of glass through the study of ancient man‐made artefacts by Golovchak, R., Kovalskiy, A., Shpotyuk, Y., Mahlovanyi, B., Ploch, D., Ignatova, T., Kozdras, A., Cebulski, J., Czopek, S.

“…Ancient man‐made glass artefacts provide vital information about the physical and chemical processes occurring over the long‐term period of weathering…”
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Fine kinetics of natural physical ageing in glassy As10Se90 by Balitska, V., Golovchak, R., Kozdras, A., Shpotyuk, O.

“…Sigmoid behavior of natural physical ageing in glassy As10Se90 reveals multi-step-wise growing kinetics of enthalpy losses. Phenomenological description of…”
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Temperature-dependent structural relaxation in As40Se60 glass by Golovchak, R., Kozdras, A., Shpotyuk, O., Gorecki, Cz, Kovalskiy, A., Jain, H.

“…The origin of structural relaxation in As40Se60 glass at different annealing temperatures is studied by differential scanning calorimetry (DSC) and in situ…”
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Optical signature of structural relaxation in glassy As10Se90 by GOLOVCHAK, R, KOZDRAS, A, SHPOTYUK, O

“…Temperature dependence of optical transmission in the fundamental optical absorption edge region is studied through the glass transition interval for the…”
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Experimental verification of the reversibility window concept in binary As-Se glasses subjected to a long-term physical aging by Golovchak, R., Jain, H., Shpotyuk, O., Kozdras, A., Saiter, A., Saiter, J.-M.

“…Physical aging effects caused by prolonged natural storage ({approx}22 years) in binary As{sub x}Se{sub 100-x} glasses are probed by temperature-modulated…”
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Physical ageing in glassy As–Se induced by above-bandgap photoexposure by Golovchak, R.Ya, Kozdras, A., Shpotyuk, O.I.

“…Physical ageing induced by above-bandgap photoexposure is studied in As–Se glasses using the differential scanning calorimetry technique. The kinetics of this…”
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Gamma-irradiation-induced physical ageing in As–Se glasses by Golovchak, R.Ya, Kozdras, A., Gorecki, Cz, Shpotyuk, O.I.

“…Effect of external influences on the physical ageing processes in As–Se chalcogenide glasses is studied at the example of Co60 γ-irradiation. The increase in…”
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Atomistic model of physical ageing in Se-rich As-Se glasses by Golovchak, R., Shpotyuk, O., Kozdras, A., Bureau, B., Vlček, M., Ganjoo, A., Jain, H.

“…Thermal, optical, X-ray excited and magnetic methods were used to develop a microstructural model of physical ageing in Se-rich glasses. The glass composition…”
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Natural physical aging in glassy As–Se: A comparative study of chaotic behavior with enhanced results analysis by Hacinliyan, A.S., Skarlatos, Y., Aybar, I. Kusbeyzi, Aybar, O.O., Shpotyuk, O., Golovchak, R., Balitska, V., Kozdras, A.

“…Theory of chaos is shown to be adequately applied to analyze kinetics of natural physical aging revealed in structural relaxation of Se-rich As–Se glasses…”
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Manifestation of phase transitions in the crystal field spectra of [(CH3)2CHNH3]4Cd3Cl10:Cu crystals by Kapustianyk, V., Yonak, P., Rudyk, V., Czapla, Z., Podsiadła, D., Eliyashevskyy, Yu, Kozdraś, A., Demchenko, P., Serkiz, R.

“…On the basis of absorption spectroscopy data the temperature evolution of the Cu2+ ion environment in the crystal of [(CH3)2CHNH3]4Cd3Cl10 doped with Cu2+…”
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Initial stage of physical ageing in network glasses by Golovchak, R., Ingram, A., Kozdras, A., Vlcek, M., Roiland, C., Bureau, B., Shpotyuk, O.

“…An atomistic view on Johari-Goldstein secondary β-relaxation processes responsible for structural relaxation far below the glass transition temperature (T g )…”
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Physical ageing effects in vitreous arsenic selenides by Golovchak, R.Ya, Gorecki, Cz, Kozdras, A., Shpotyuk, O.I.

“…Effects of long-term physical ageing (∼20 years) studied in vitreous arsenic selenides using differential scanning calorimetry are compared with conventional…”
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