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  • data evaluation  (1)
  • emissivity  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Problems of data input into a data base for thermophysical properties (1989)
    Springer
    International journal of thermophysics 10 (1989), S. 749-763 
    Details
    ISSN: 1572-9567
    Schlagwort(e): data base ; data evaluation ; thermophysical properties
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract THERSYST is a data base especially designed for the storage, handling, and presentation of thermophysical property data. Great effort has been spent to enable the storage of the complete relevant information on the material and the experimental conditions. A modular system of evaluation programs allows one to combine measured data with any describing data, to convert stored values to others with the help of given formula, or to transform parameters to variables. Finally, all these data can be listed and plotted in many ways. An essential time factor and source of error during storage of data are produced by the extraction of the information from the literature. In many cases the kind of presentation is not appropriate for the data transfer into the data base. A form of presentation which facilitates the literature evaluation for the data input is proposed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00507994
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Spectral and Total Emissivity of High-Temperature Materials (1998)
    Springer
    International journal of thermophysics 19 (1998), S. 917-929 
    Details
    ISSN: 1572-9567
    Schlagwort(e): coatings ; C/C–SiC composites ; emissivity ; oxidation protection ; polysilazane ; reference materials ; SiC coatings
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract A number of various high emissivity coatings has been investigated in detail. Oxide ceramic coatings for rotating x-ray anodes must have a total emissivity greater than 0.8 in order to ensure efficient cooling in vacuum. Only one of the investigated coatings showed sufficient long-term stability. For thermal protection of reusable space transportation systems during atmospheric reentry, in addition to high emissivity, oxidation resistance is required. SiC coatings and special polysilazane-based coatings have been tested. Results of emissivity measurements before and after flight experiments on the Russian FOTON capsule are also available. In order to improve the reliability of (high-temperature) emissivity measurements Pt–Rh alloys, SiC, Al2O3 doped with Cr2O3, and graphite have been tested to assess applicability as reference materials for comparative emissivity measurements by various facilities.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1022607426413
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
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