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Environmental barrier coatings for high temperature ceramic components
Environmental barrier coatings for high temperature ceramic components. The barrier coatings include a bond coat layer containing silicon, an optional silica layer, at least one transition layer containing about 85% to about 100% by volume of a primary transition material comprising mullite, BSAS, or a mullite/BSAS mixture; an outer layer containing about 85% to about 100% by volume of a primary outer material comprising BSAS; and at least one of a sintering aid and a secondary material in the transition layer and/or outer layer. The secondary material is a reaction product of the sintering aid and at least one of the primary transition material and the primary outer material.
Environmental barrier coatings for high temperature ceramic components
Environmental barrier coatings for high temperature ceramic components. The barrier coatings include a bond coat layer containing silicon, an optional silica layer, at least one transition layer containing about 85% to about 100% by volume of a primary transition material comprising mullite, BSAS, or a mullite/BSAS mixture; an outer layer containing about 85% to about 100% by volume of a primary outer material comprising BSAS; and at least one of a sintering aid and a secondary material in the transition layer and/or outer layer. The secondary material is a reaction product of the sintering aid and at least one of the primary transition material and the primary outer material.
Environmental barrier coatings for high temperature ceramic components
KIRBY GLEN HAROLD (author) / BOUTWELL BRETT ALLEN (author)
2015-12-15
Patent
Electronic Resource
English
IPC:
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
B05D
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
,
Verfahren zum Aufbringen von Flüssigkeiten oder von anderen fließfähigen Stoffen auf Oberflächen allgemein
/
C04B
Kalk
,
LIME
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