Loading...
Please wait, while we are loading the content...
Similar Documents
Effect of long-term thermal aging on coated celion/larc-160 composites
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nelson, James B. |
| Copyright Year | 1987 |
| Description | Coated and uncoated unidirectional laminates of Celion (Trademark)/LARC-160 graphite/polyimide were thermally aged in air at temperatures of 204, 260, and 316 C for various times up to 15,000 hours. Selected panels were coated with a high temperature coating resin (polyphenyl quinoxaline--PPQ): 1) edges only; 2) top and bottom only; 3)completely; or 4) not at all. Periodically during aging, panels were removed from the ovens, weighed, and short beam shear (SBS) specimens cut from selected locations in the panels. The protective coating did not influence the retention of SBS strength during thermal aging but did not lessen the amount of weight-loss incurred. The integrity of the PPQ coating was completely destroyed during aging at 316 C. |
| File Size | 7197854 |
| Page Count | 23 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880003162 |
| Archival Resource Key | ark:/13960/t04z0601n |
| Language | English |
| Publisher Date | 1987-10-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Polyphenyls Heat Treatment Thermal Cycling Tests Polyquinoxalines Long Term Effects High Temperature Laminates Resins Protective Coatings Graphite-polyimide Composites Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
