Outgassing from spacecraft materials is known to degrade performance of various components, of which particularly affected are cold and cryogenic surfaces. For those surfaces that suffer from performance losses due to molecular contamination, it is important to assess the contamination levels at an early stage of a project to apply necessary risk mitigation and/or risk avoidance. The focus of this work is on the reemission parameters of the molecular contamination model used in the simulations and improvement of the long-term predictions of in-flight contamination levels. This is realized by experimentally finding a number of sticking coefficients for a set of chemical species released from a contaminated surface during the thermogravimetric analysis. The predicted results are in good agreement with the experimental values.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Modeling of Spacecraft Outgassed Contamination Levels by Thermogravimetric Analysis


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2021-05-31


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    On contamination of Spacecraft surfaces by Outgassed Products

    Khasanshin, R. / Timofeev, A. / Galygin, A. et al. | British Library Conference Proceedings | 2006


    Contamination limiter for reducing outgassed volatile condensable materials from spacecraft

    PANG ANTHONY / XIE JULIE / LONTOC ELEAZAR P | Europäisches Patentamt | 2020

    Freier Zugriff

    Extraction of properties of condensed outgassed species by thermogravimetric analysis

    Simpson, T.R. / Hall, D.F. / Ternet, G.K. | Tema Archiv | 2002



    Contamination of Optical Surfaces under Irradiation by Outgassed Volatile Products

    Khasanshin, R.H. / Grigorevskiy, A.V. / Galygin, A.N. et al. | British Library Conference Proceedings | 2009