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A non-contact thermal barrier coating (tbc) heat flux sensor using a self calibrating multiwavelength pyrometer
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ng, Daniel Spuckler, Charles M. |
| Organization | The National Aeronautics and Space Administration (NASA) |
| Copyright Year | 1996 |
| Abstract | Non-contact heat flux measurements have been demonstrated using crystalline sapphire and polycrystalline alumina as the working material and a multiwavelength pyrometer as the measuring device. Heat flux sensing is now achieved using a 25 micro m thick nanostructured thermal barrier coating (TBC) on 3 mm thick sapphire substrate. Advanced nanostructured TBCs transmits in the infrared region and are capable of producing even larger temperature differences than the traditional flame sprayed zirconia TBC. Though a 1 mm (40 mil) thick flame sprayed zirconia TBC produced the desired temperature difference, it transmitted less than 0.2 of the radiation in the short wavelength region, making it less suitable as a heat flux sensor. |
| File Size | 643745 |
| File Format | |
| Alternate Webpage(s) | http://www.archive.org/details/nasa_techdoc_19960014806 |
| Archival Resource Key | ark:/13960/t3jw97v21 |
| Language | English |
| Publisher Date | 1996-01-01 |
| Publisher Institution | Glenn Research Center |
| Access Restriction | Open |
| Subject Keyword | Fuels Flow Measurement Gas Flow Spacecraft Launching Toxic Hazards Hypergolic Rocket Propellants Launching Pads Oxidizers Particle Emission Scrubbers Spacecraft Maintenance Accumulations Exhaust Emission Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
