초록 ▼

The invention provides for oxidatively resistant silicon carbide coated carbon/carbon composites, a method for the preparation of these materials, and their use in high temperature applications, preferably in brakes for airplanes. The silicon carbide coated C/C composite, which is resistant to oxida

The invention provides for oxidatively resistant silicon carbide coated carbon/carbon composites, a method for the preparation of these materials, and their use in high temperature applications, preferably in brakes for airplanes. The silicon carbide coated C/C composite, which is resistant to oxidation at high temperatures, is prepared by a method comprising: (a) coating a C/C composite base with a reactive carbon containing composition to form a reactive carbon coated C/C composite; followed by (b) applying a silicon containing composition to the reactive carbon coated C/C composite to form a bi-layered C/C composite; (c) heating the bi-layered C/C composite to at least the melting point of silicon to form the silicon carbide coated C/C composite; and optionally (d) applying a retardant solution to the silicon carbide coated C/C composite wherein the retardant solution comprises the ions formed from the combination of the following: 10-80 wt % H2O and 90-20 wt % H3PO4.

대표청구항 ▼

The invention provides for oxidatively resistant silicon carbide coated carbon/carbon composites, a method for the preparation of these materials, and their use in high temperature applications, preferably in brakes for airplanes. The silicon carbide coated C/C composite, which is resistant to oxida

The invention provides for oxidatively resistant silicon carbide coated carbon/carbon composites, a method for the preparation of these materials, and their use in high temperature applications, preferably in brakes for airplanes. The silicon carbide coated C/C composite, which is resistant to oxidation at high temperatures, is prepared by a method comprising: (a) coating a C/C composite base with a reactive carbon containing composition to form a reactive carbon coated C/C composite; followed by (b) applying a silicon containing composition to the reactive carbon coated C/C composite to form a bi-layered C/C composite; (c) heating the bi-layered C/C composite to at least the melting point of silicon to form the silicon carbide coated C/C composite; and optionally (d) applying a retardant solution to the silicon carbide coated C/C composite wherein the retardant solution comprises the ions formed from the combination of the following: 10-80 wt % H2O and 90-20 wt % H3PO4. plurality of channels in said upwardly extending portion in the arch portion located on said medial side are in register and communication with said plurality of openings in said upper part. 7. The article of footwear of claim 5, wherein said plurality of channels in said upwardly extending portion in the arch portion of said compressible insole located on said medial side terminate in a cavity in said compressible insole that is in communication with said plurality of openings in said upper part. 8. The article of footwear of claim 1, further comprising: a lower part incorporating a sole. 9. The article of footwear of claim 1, wherein said membrane is a size approximating an area covering a surface area of said plurality of openings. 10. The article of footwear of claim 1, wherein said membrane is a size having dimensions approximating an area larger than a surface area covering said plurality of openings. 11. The article of footwear of claim 1, wherein each of said plurality of openings has a diameter approximating a few millimeters.