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Graphite sheet coating for improved thermal oxidative stability of carbon fiber reinforced/pmr-15 composites
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | McCorkle, Linda Campbell, Sandi Papadopoulos Sr., Demetrios Heimann, Paula Inghram, Linda |
| Copyright Year | 2005 |
| Description | Expanded graphite was compressed into graphite sheets and used as a coating for carbon fiber reinforced PMR-15 composites. BET analysis of the graphite indicated an increase in graphite pore size on compression, however the material was proven to be an effective barrier to oxygen when prepegged with PMR-15 resin. Oxygen permeability of the PMR-15/graphite was an order of magnitude lower than the compressed graphite sheet. By providing a barrier to oxygen permeation, the rate of oxidative degradation of PMR-15 was decreased. As a result, the composite thermo-oxidative stability increased by up to 25%. The addition of a graphite sheet as a top ply on the composites yielded little change in the material's flexural strength or interlaminar shear strength. |
| File Size | 757527 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050182938 |
| Archival Resource Key | ark:/13960/t9h46ps9h |
| Language | English |
| Publisher Date | 2005-01-26 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Oxidation Resistance Oxygen Carbon Fibers Flexural Strength Graphite Shear Strength Fiber Composites Permeability Coatings Thermal Stability Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
