Paper Title:
Impression Creep in TBC and Advanced Ceramics Materials
  Abstract

The indentation creep of free-standing Y-ZrO2 layer and 20Sc-60Si-20Mg-80O-20N oxynitride glass has been investigated. Creep experiment has been performed with flat cylindrical indenter (hot pressed SiC) in the temperature range from 860 °C to 1300 °C at the loads from 20 to 100 MPa. The strain-time relationship was registered and the creep exponent and activation energy of creep have been calculated. The microstructure changes have been observed and documented. Viscosity as a function of temperature and the glass transition temperature (Tg) were determined in oxynitride glass and compared with values from compressive creep.

  Info
Periodical
Edited by
Marc Anglada et al.
Pages
281-284
DOI
10.4028/www.scientific.net/KEM.333.281
Citation
F. Dorčáková, V. Jan, L. Hegedűsová, J. Dusza, "Impression Creep in TBC and Advanced Ceramics Materials", Key Engineering Materials, Vol. 333, pp. 281-284, 2007
Online since
March 2007
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Price
$32.00
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