Original title: Optimalization of evaluation of initiation of temperature ageing processes of selected cable isolation
Authors: Štěpánová, Lucie ; Štěpánek, Ivo ; Mertová, Andrea ; Šimečková, Lucie
Document type: Papers
Conference/Event: METAL 2018. International conference on metallurgy and materials /27./, Brno (CZ), 20180523
Year: 2018
Language: eng
Abstract: 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.
Keywords: cable isolation; nanoindentation; scratch indentation; temperature ageing
Project no.: EF15_003/0000493
Funding provider: GA MŠk
Host item entry: METAL 2018. 27th International conference on metallurgy and materials. Conference proceedings, ISBN 978-80-87294-84-0

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0293969

Permalink: http://www.nusl.cz/ntk/nusl-393208


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