Influence of bond coat thickness on the cyclic rumpling of thermally grown oxides

2006 ◽  
Vol 54 (7) ◽  
pp. 1815-1820 ◽  
Author(s):  
D.S. Balint ◽  
T. Xu ◽  
J.W. Hutchinson ◽  
A.G. Evans
Keyword(s):  
Bond Coat ◽  
Thermally Grown Oxides ◽  
Thermally Grown

Stresses Developed within Thermally Grown Oxides on a Coated Superalloy Substrate

2009 ◽  
Vol 417-418 ◽  
pp. 5-8 ◽  
Author(s):  
Gabrielle Hilson ◽  
Peter E.J. Flewitt
Keyword(s):  
Raman Spectroscopy ◽  
Exposure Time ◽  
Bond Coat ◽  
Thermally Grown Oxide ◽  
Photoluminescence Spectroscopy ◽  
X Ray Diffraction ◽  
Thermally Grown Oxides ◽  
X Ray ◽  
Service Components ◽  
Thermally Grown

Residual macro-stresses have to be evaluated using trial samples that comprise a CMSX4 superalloy coated with either a RT22 or a CN91 bond-coat. The samples were exposed in air to a matrix of temperatures, in the range 850°C to 1050°C, and times extending upto 4000hrs to produce thermally grown oxide. This oxide is essentially Al2O3 which allows stresses to be measured by photoluminescence spectroscopy. In addition, Raman spectroscopy and X-ray diffraction have been used to characterise the oxides formed. The results are discussed with respect to confidence in the measurements, changes in stress with temperature and exposure time and the potential for photoluminescence spectroscopy to be used to measure stresses for service components.

Mobility degradation in gated Si:SiGe quantum wells with thermally grown oxides

1995 ◽  
Vol 31 (21) ◽  
pp. 1876-1878 ◽  
Author(s):  
R.S. Prasad ◽  
S. Kanjanachuchai ◽  
J. Fernández ◽  
T.J. Thornton ◽  
A. Matsumura
Keyword(s):  
Quantum Wells ◽  
Thermally Grown Oxides ◽  
Mobility Degradation ◽  
Thermally Grown

In Situ and Ex Situ Investigation of the Spallation of Thermally Grown Oxides

2007 ◽  
pp. 1134-1139
Author(s):  
Philippe Lours ◽  
Yu Hong Qi ◽  
Yannick Le Maoult ◽  
Bernard Pieraggi
Keyword(s):  
Ex Situ ◽  
Thermally Grown Oxides ◽  
Thermally Grown

Stabilization of Silicon Surfaces by Thermally Grown Oxides*

1959 ◽  
Vol 38 (3) ◽  
pp. 749-783 ◽  
Author(s):  
M. M. Atalla ◽  
E. Tannenbaum ◽  
E. J. Scheibner
Keyword(s):  
Silicon Surfaces ◽  
Thermally Grown Oxides ◽  
Thermally Grown
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