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Volume relaxation of a-Se studied by mercury dilatometry

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F06%3A00004387" target="_blank" >RIV/00216275:25310/06:00004387 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Volume relaxation of a-Se studied by mercury dilatometry

  • Original language description

    Mercury dilatometry was used to study volume relaxation of amorphous selenium (a-Se). Influence of experimental setting and reactivity of a-Se with mercury was studied using two differently constructed dilatometers (dissimilar sensitivity of sample volume change and dissimilar values of characteristic time constants of the dilatometers). Three types of volume-time-temperature experiments were made. Temperature of glass transition and thermal expansion coefficients in glassy and liquid state were determined from non-isothermal experiments. Volume relaxation was studied mainly on the basis of isothermal experiments. It was found that classical isothermal relaxation experiments are strongly influenced by the loss of information at the experiment beginningdue to the proceeding relaxation. On the other hand, more complex thermal history experiments seem to be less dependent on these procedural parameters and were considered as most suitable for studying structural relaxation. The reaction

  • Czech name

    Objemová relaxace a-Se studovaná pomocí rtuťové dilatometrie

  • Czech description

    Ke studiu objemové relaxace amorfního selenu (a-Se) byla použita rtuťová dilatometrie. Vliv experimentálního uspořádání a reaktivita a-Se se rtutí byly sledovány pomocí dvou dilatometrů různé konstrukce (odlišná citlivost změny objemu vzorku a odlišná hodnota charakteristického času dilatometru). Byly provedeny tři typy objem-čas-teplota experimentů. Teplota skelné transformace a koeficient teplotní délkové roztažnosti skla a podchlazené kapaliny byly určeny z neizotermních experimentů. Objemová relaxace byla studována převážně za isotermních podmínek. Bylo zjištěno, že klasické izotermní relaxační experimenty jsou silně ovlivněny ztrátou informace na začátku experimentu. Kdežto experiment s komplexní teplotní historií je ovlivněn méně a je vhodnější pro studium strukturní relaxace. Z experimentů vyplývá, že reakce a-Se a rtuti neovlivňuje výsledky měření strukturní relaxace.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2006

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Non-Crystalline Solids

  • ISSN

    0022-3093

  • e-ISSN

  • Volume of the periodical

    N

  • Issue of the periodical within the volume

    352

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    6

  • Pages from-to

    4793-4799

  • UT code for WoS article

  • EID of the result in the Scopus database