Optimalization of evaluation of initiation of temperature ageing processes of selected cable isolation

0499177 - ÚT 2019 RIV CZ eng C - Conference Paper (international conference)
Štěpánová, Lucie - Štěpánek, Ivo - Mertová, Andrea - Šimečková, Lucie
Optimalization of evaluation of initiation of temperature ageing processes of selected cable isolation.
Ostrava: TANGER Ltd., 2018. ISBN 978-80-87294-84-0. 1. In: METAL 2018. 27th International conference on metallurgy and materials. Conference proceedings. Ostrava: Tanger, 2018, s. 1003-1009, č. článku 142841. ISBN 978-80-87294-84-0.
[METAL 2018. International conference on metallurgy and materials /27./. Brno (CZ), 23.05.2018-25.05.2018]
R&D Projects: GA MŠMT(CZ) EF15_003/0000493
Keywords : nanoindentation * scratch indentation * cable isolation * temperature ageing
OECD category: Materials engineering

The paper is devoted of verification of possibilities of evaluation of initial changing of properties and behaviour of selected polymeric isolation of cables after defined temperature loading simulated of external operational conditions and simulated temperature loading evoked by current loading. There are evaluated initial properties and behaviour of selected polymeric cable isolations and properties and behaviour after natural ageing process and controlled accelerated ageing process during higher temperature loading and different time of exposition to the higher temperature. The method of x-ray fluorescence analysis is used for evaluation of differences of changing of properties and behaviour of polymeric isolation cable materials after natural ageing process and after accelerated controlled ageing processes. There are verificated the possibilities for analysis differences in behaviour of polymeric insulation materials after different ageing process. The paper is namely devoted by verification of the possibilities analytic methods for evaluation initial of changing of properties and behaviour by nanoindentation methods for analysis very small differences in mechanical properties and behaviour of surface layers of polymeric materials used in the application isolation of cables. There are optimized the parameters of nanoindentation measurements for analysis of differences in hardness and elastic plastic behaviour.
Permanent Link: http://hdl.handle.net/11104/0293969