Browsing by Author "Balitska, V."

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    On the kinetics description of below-Tg structural relaxation in network glass formers
    (Видавництво Львівської політехніки, 2012) Balitska, V.; Golovchak, R.; Shpotyuk, O.
    Phenomenological description of below-Tg structural relaxation known as long-term natural physical ageing in network glass formers exemplified by binary arsenic selenides was adequately developed within firstorder kinetics. This kinetics was shown to obey a character stretched exponentional behavior being treated as sequence of aligning-shrinkage stages throughtout glassy matrix.
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    Sintering-modified oxymanganospinel ceramics for NTC thermistor application
    (Видавництво Львівської політехніки, 2012) Hadzaman, I.; Klym, H.; Shpotyuk, O.; Brunner, M.; Balitska, V.
    Mixed Ni-Co-Cu oxymanganospinels of Cu0.1Ni0.8Co0.2Mn1.9O4 chemical composition are first developed for possible application as high-precise NTC thermistors using nanophase segregation effects controlled by sintering technological route. It is shown that rack-salt NiO phase in these ceramics occurs a decisive role on parasitic degradation caused by thermal storage of the ceramics at the elevated temperatures.