Scandia, yttria-stabilized zirconia for ultra-high temperature t

Details Scandia, yttria-stabilized zirconia for ultra-high temperature t Scandia, yttria-stabilized zirconia for ultra-high temperature t

1998-04-30

2000-04-04

Kamen, Noah P.

Internal-combustion engines

Combustion chamber

Having catalytic cambustion aid

501103, F02B 5102

Patent

active

06044830&

ABSTRACT:
A composite structure includes a self-supporting substrate and a thermal barrier coating of zirconia stabilized with scandia and yttria. A method of protecting the surface of a self-supporting substrate from degradation caused by exposure to temperatures above 1200.degree. C. includes the step of applying to the surface a coating of zirconia stabilized with scandia and yttria.

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Ciacchi et al "The System Y.sub.2 O.sub.3 -Sc.sub.2 O.sub.3 -ZrO.sub.2 : se Characterization by XRD, TEM and Optical Microscopy" J. Europ. Cer Soc. 7 (1991), 185-195.
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