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Effects of material composition on the ablation performance of low density elastomeric ablators
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kabana, W. P. Tompkins, S. S. |
| Copyright Year | 1973 |
| Description | The ablation performance of materials composed of various concentrations of nylon, hollow silica spheres, hollow phenolic spheres, and four elastomeric resins was determined. Both blunt-body and flat-panel specimens were used, the cold-wall heating-rate ranges being 0.11 to 0.8 MW/sq m, respectively. The corresponding surface pressure ranges for these tests were 0.017 to 0.037 atmosphere and 0.004 to 0.005 atmosphere. Some of the results show that (1) the addition of nylon significantly improved the ablation performance, but the nylon was not compatible with one resin system; (2) panel and blunt-body specimen data do not show the same effect of phenolic sphere content on ablation effectiveness; and (3) there appears to be an optimum concentration of hollow silica spheres for good ablation performance. The composition of an efficient, nonproprietary ablator for lifting body application is identified and the ablation performance of this ablator is compared with the performance of three commercially available materials. |
| File Size | 13370404 |
| Page Count | 35 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730015218 |
| Archival Resource Key | ark:/13960/t5n92154h |
| Language | English |
| Publisher Date | 1973-05-01 |
| Access Restriction | Open |
| Subject Keyword | Thermodynamics And Combustion Ablative Materials Thermal Protection Nylon Trademark Spheres Elastomers 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 |
