As a series of material approaches to the development of advanced technology for Stirling converters for space power applications, two commercial, structural silicon nitrides AS800 and SN282 were downselected. Their life limiting property was characterized through slow crack growth testing in flexure at an intermediate temperature of 1050 deg C in air. AS800 exhibited both fast-fracture strength and Weibull modulus greater than SN282. However, life limiting phenomenon was apparent in AS800 with a low slow crack growth parameter n = 15; whereas, a much increased resistance to slow crack growth (n >150) was found in SN282. The life limiting property of both silicon nitrides was found to be consistent either in dynamic fatigue (constant stress-rate) loading or in stress rupture (constant stress or static fatigue).


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Life limiting behavior of two gas-turbine grade silicon nitrides at intermediate temperature for stirling convertor applications


    Additional title:

    Lebensdauerverhalten zweier Siliciumnitride mit Gasturbinengütegrad bei intermediärer Temperatur für Stirlingkonverter-Anwendungen


    Contributors:


    Publication date :

    2007


    Size :

    11 Seiten, 5 Bilder, 1 Tabelle, 25 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Stirling convertor regenerators

    Ibrahim, Mounir B. / Tew, Roy C. | TIBKAT | 2012


    Advanced Stirling Convertor Update

    Wood, J. G. / Carroll, C. / Matejczyk, D. et al. | British Library Conference Proceedings | 2006


    Advanced Stirling Convertor Update

    Wood, J. Gary / Carroll, Cliff / Matejczyk, Dan et al. | American Institute of Physics | 2006


    Advanced Stirling Convertor Program Update

    Wood, J. / Carroll, Cliff | AIAA | 2004


    Stirling Convertor Fastener Reliability Quantification

    Shah, Ashwin / Korovaichuk, Igor / Kovacevich, Tidor et al. | AIAA | 2005