29-09-2016 дата публикации
Номер: US20160280585A1
The present disclosure includes carbon-carbon composite articles having oxidation protection coatings for limiting thermal and catalytic oxidation reactions and methods for applying oxidation protection coatings to carbon-carbon composite articles. 1. An article comprising:a carbon-carbon composite structure; 'wherein the base layer comprises a first phosphate glass composition having a boron nitride additive dispersed throughout the base layer.', 'an oxidation protection composition including a base layer disposed on an outer surface of the carbon-carbon composite structure,'}2. The article of claim 1 , wherein the first phosphate glass composition of the base layer comprises between about 10 weight percent and about 35 weight percent of the boron nitride additive.3. The article of wherein the first phosphate glass composition of the base layer is represented by the formula a(A′O)(PO)b(GO)c(A″O):A′ is selected from: lithium, sodium, potassium, rubidium, cesium, and mixtures thereof;{'sub': 'f', 'Gis selected from: boron, silicon, sulfur, germanium, arsenic, antimony, and mixtures thereof;'}A″ is selected from: vanadium, aluminum, tin, titanium, chromium, manganese, iron, cobalt, nickel, copper, mercury, zinc, thulium, lead, zirconium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, actinium, thorium, uranium, yttrium, gallium, magnesium, calcium, strontium, barium, tin, bismuth, cadmium, and mixtures thereof;a is a number in the range from 1 to about 5;b is a number in the range from 0 to about 10;c is a number in the range from 0 to about 30;x is a number in the range from about 0.050 to about 0.500;{'sub': '1', 'yis a number in the range from about 0.040 to about 0.950;'}{'sub': '2', 'yis a number in the range from 0 to about 0.20; and'}z is a number in the range from about 0.01 to about 0.5;{'sub': 1', '2, '(x+y+y+z)=1; and'}{'sub': 1', '2, 'x<(y+y).'}4. The article of claim 1 ...
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