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Strength, fracture toughness, fatigue, and standardization issues of free-standing thermal barrier coatings
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Zhu, Dong-Ming Miller, Robert A. Choi, Sung R. |
| Copyright Year | 2003 |
| Description | Strength, fracture toughness and fatigue behavior of free-standing thick thermal barrier coatings of plasma-sprayed ZrO2-8wt % Y2O3 were determined at ambient and elevated temperatures in an attempt to establish a database for design. Strength, in conjunction with deformation (stress-strain behavior), was evaluated in tension (uniaxial and trans-thickness), compression, and uniaxial and biaxial flexure; fracture toughness was determined in various load conditions including mode I, mode II, and mixed modes I and II; fatigue or slow crack growth behavior was estimated in cyclic tension and dynamic flexure loading. Effect of sintering was quantified through approaches using strength, fracture toughness, and modulus (constitutive relations) measurements. Standardization issues on test methodology also was presented with a special regard to material's unique constitutive relations. |
| File Size | 11704374 |
| Page Count | 27 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20030067846 |
| Archival Resource Key | ark:/13960/t53f9qb9h |
| Language | English |
| Publisher Date | 2003-07-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Thermal Control Coatings Stress-strain Relationships Deformation Zirconium Oxides Fatigue Materials Sintering Fracture Strength 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 |