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Deposition stress effects on thermal barrier coating burner rig life
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Levine, S. R. Watson, J. W. |
| Copyright Year | 1984 |
| Description | A study of the effect of plasma spray processing parameters on the life of a two layer thermal barrier coating was conducted. The ceramic layer was plasma sprayed at plasma arc currents of 900 and 600 amps onto uncooled tubes, cooled tubes, and solid bars of Waspalloy in a lathe with 1 or 8 passes of the plasma gun. These processing changes affected the residual stress state of the coating. When the specimens were tested in a Mach 0.3 cyclic burner rig at 1130 deg C, a wide range of coating lives resulted. Processing factors which reduced the residual stress state in the coating, such as reduced plasma temperature and increased heat dissipation, significantly increased coating life. |
| File Size | 27122364 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840017762 |
| Archival Resource Key | ark:/13960/t0cv9br1q |
| Language | English |
| Publisher Date | 1984-01-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Stress Analysis Zirconium Plasma Jets Gas Turbines Failure Analysis Durability Oxidation Ceramics Plasma Spraying Microstructure Substrates Stress Measurement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
