PROTECTIVE COATING FOR CARBON-CARBON COMPOSITES

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 16909
Amount: $49,926.00
Phase: Phase I
Program: SBIR
Awards Year: 1991
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Spire Corp
Patriots Park, Bedford, MA, 01730
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
CARBON-CARBON (C-C) HAS AN EXTREMELY HIGH STRENGTH-TO-WEIGHTRATIO AND WOULD THEREFORE BE THE MATERIAL OF CHOICE FOR HOT STRUCTURES ON HYPERSONIC VEHICLES IF ITS OXIDATION RESISTANCE COULD BE IMPROVED. TO ACHIEVE THIS OBJECTIVE, A COATING SYSTEM WILL BE DEVELOPED IN WHICH A VERY THIN FILM OF PLATINUM SERVES AS THE FINAL LINE OF DEFENSE AGAINST OXIDATION. PLATINUM HAS A HIGH MELTING TEMPERATURE, EXCELLENT OXIDATION RESISTANCE, AND IS DUCTILE ENOUGH TO AVOID CRACKING DURING THERMAL CYCLING. TO ENSURE GOOD ADHESION, THE PLATINUM FILM WILL BE FORMED ON C-C BY ION BEAM-ASSISTED DEPOSITION (IBAD). IBAD WILL BE USED IN PHASEI TO PLATINUM COAT TWO-DIMENSIONAL C-C COUPONS; THE COUPONS WILL BE EVALUATED FOR OXIDATION RESISTANCE UP TO 2500 DEGREES FAHRENHEIT DURING THERMAL CYCLING. SUCCESSFUL PHASEI RESULTS WILL LEAD TO FABRICATION AND TESTING OF C-C PANELSWITH PLATINUM FILMS FORMING PART OF AN OXIDATION-RESISTANT COATING SYSTEM. THE PLATINUM FILM WILL BE ONE COMPONENT OF A SYSTEM INCORPORATING MATRIX OXIDATION INHIBITORS, CERAMIC SURFACE COATINGS, AND GLASSY CRACK SEALERS--RESULTING IN MULTIPLE LINES OF DEFENSE AGAINST COMPOSITE OXIDATION. CARBON-CARBON (C-C) HAS AN EXTREMELY HIGH STRENGTH-TO-WEIGHTRATIO AND WOULD THEREFORE BE THE MATERIAL OF CHOICE FOR HOT STRUCTURES ON HYPERSONIC VEHICLES IF ITS OXIDATION RESISTANCE COULD BE IMPROVED. TO ACHIEVE THIS OBJECTIVE, A COATING SYSTEM WILL BE DEVELOPED IN WHICH A VERY THIN FILM OF PLATINUM SERVES AS THE FINAL LINE OF DEFENSE AGAINST OXIDATION. PLATINUM HAS A HIGH MELTING TEMPERATURE, EXCELLENT OXIDATION RESISTANCE, AND IS DUCTILE ENOUGH TO AVOID CRACKING DURING THERMAL CYCLING. TO ENSURE GOOD ADHESION, THE PLATINUM FILM WILL BE FORMED ON C-C BY ION BEAM-ASSISTED DEPOSITION (IBAD). IBAD WILL BE USED IN PHASEI TO PLATINUM COAT TWO-DIMENSIONAL C-C COUPONS; THE COUPONS WILL BE EVALUATED FOR OXIDATION RESISTANCE UP TO 2500 DEGREES FAHRENHEIT DURING THERMAL CYCLING. SUCCESSFUL PHASEI RESULTS WILL LEAD TO FABRICATION AND TESTING OF C-C PANELSWITH PLATINUM FILMS FORMING PART OF AN OXIDATION-RESISTANT COATING SYSTEM. THE PLATINUM FILM WILL BE ONE COMPONENT OF A SYSTEM INCORPORATING MATRIX OXIDATION INHIBITORS, CERAMIC SURFACE COATINGS, AND GLASSY CRACK SEALERS--RESULTING IN MULTIPLE LINES OF DEFENSE AGAINST COMPOSITE OXIDATION.

* information listed above is at the time of submission.

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government