Granted Patent B2

US 12,583,785 · App. 18/186,785 · Granted Mar 24, 2026

Inventors: Zhongfen Ding (South Windsor, CT); Steven Poteet (Lake Forest, CA); John S. Linck (Pueblo, CO); Xia Tang (West Hartford, CT); Richard Wesley Jackson, III (Mystic, CT); Michael Miller (Glastonbury, CT); Virginia E. Collier (Fountain, CO); Hans L Lehermeier (Pueblo West, CO)

Assignee: GOODRICH CORPORATION

C03C8/22C03C8/08C03C8/14C04B35/83C04B41/0072C04B41/4539C04B41/5022C04B41/522C04B41/86C04B41/89C03C2209/00C04B2235/422C04B2235/5248F16D2200/0039F16D2200/0052F16D2200/0078F16D2250/0046

Abstract

Claims (24)

1 . A method for forming an oxidation protection system on a carbon-carbon composite structure, comprising:

applying a boron slurry to the carbon-carbon composite structure, wherein the boron slurry comprises a boron compound, a first glass mixture, a first glass former, a first glass modifier, and a first carrier fluid, the first glass mixture including a first glass compound and a second glass compound, the first glass compound having a first viscosity-temperature profile that is at least one order of magnitude below a second viscosity-temperature profile of the second glass compound, wherein the first glass compound includes a first viscosity at 1,250° F. (677° C.) between 1.0×10 4 Pa·S and 1.0×10 6 Pa·S, and wherein the second glass compound includes a second viscosity at 1,250° F. (677° C.) between 1.0×10 8 Pa·S and 1.0×10 10 Pa·S;

applying a silicon slurry to the carbon-carbon composite structure, wherein the silicon slurry comprises a silicon compound, a third glass compound, a second glass former, a second glass modifier, and a second carrier fluid; and

heating the carbon-carbon composite structure.

2 . The method of claim 1 , wherein the first viscosity-temperature profile is at least two orders of magnitude below the second viscosity-temperature profile of the second glass compound.

3 . The method of claim 1 , wherein:

the first glass compound includes a third viscosity at 1,650° F. (899° C.) between 1.0×10 1 Pa·S and 1.0×10 3 Pa·S, and

the second glass compound includes a fourth viscosity at 1,650° F. (899° C.) between 8.0×10 4 Pa·S and 8.0×10 6 Pa·S.

4 . The method of claim 3 , wherein:

the first glass mixture comprises a fourth glass compound,

the fourth glass compound includes a fifth viscosity at 1,250° F. (677° C.) between 1.1×10 6 Pa·S and 9.9×10 7 Pa·S, and

the fourth glass compound includes a sixth viscosity at 1,650° F. (899° C.) between 1.0×10 4 Pa·S and 1.0×10 6 Pa·S.

5 . The method of claim 1 , wherein:

the first glass compound includes a phosphate-based glass, and

the second glass compound includes a first borosilicate glass.

6 . The method of claim 5 , wherein:

the first glass mixture comprises a fourth glass compound,

the fourth glass compound comprises a second borosilicate glass, and

the second borosilicate glass has a different viscosity-temperature profile from the first borosilicate glass.

7 . The method of claim 6 , wherein the first glass mixture includes approximately 20%±10 weight percent of the first glass compound, 30%±10 weight percent of the second glass compound and 50%±10 weight percent of the fourth glass compound.

8 . The method of claim 1 , wherein:

the first glass mixture further comprises a fourth glass compound,

the fourth glass compound has a third viscosity-temperature profile that is between the first viscosity-temperature profile and the second viscosity-temperature profile, and

the first glass mixture includes approximately 20%±10 weight percent of the first glass compound, 30%±10 weight percent of the second glass compound and 50%±10 weight percent of the fourth glass compound.

Assignments (8)

Continuity (1)

References Cited (400)