| 摘要 |
<p>PURPOSE: A covering system which intercepts heat for a gas turbine is provided to have maximum heat insulating property to reduce weight to be used for a long time, and to have stability and economical efficiency. CONSTITUTION: A ceramic material as a covering material for intercepting or insulating heat from a metal equipment, contains gadolinium, zirconia, and desirably gadolinium-zirconia oxide. The material also contains fluoride and pyrochlore structure. The material indicates more excellent chemical stability, heat stability, and heat insulating property and also has corrosion resistance. The desirable material contains 5 to 60 mol % of gadolinium.</p> |
