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Mechanical properties and real-time damage evaluations of environmental barrier coated sic/sic cmcs subjected to tensile loading under thermal gradients
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Zhu, Dongming Appleby, Matthew Morscher, Gregory |
| Copyright Year | 2015 |
| Description | SiC/SiC ceramic matrix composites (CMCs) require new state-of-the art environmental barrier coatings (EBCs) to withstand increased temperature requirements and high velocity combustion corrosive combustion gasses. The present work compares the response of coated and uncoated SiC/SiC CMC substrates subjected to simulated engine environments followed by high temperature mechanical testing to asses retained properties and damage mechanisms. Our focus is to explore the capabilities of electrical resistance (ER) measurements as an NDE technique for testing of retained properties under combined high heat-flux and mechanical loading conditions. Furthermore, Acoustic Emission (AE) measurements and Digital Image Correlation (DIC) were performed to determine material damage onset and accumulation. |
| File Size | 1635379 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150014234 |
| Archival Resource Key | ark:/13960/t8bg7pm79 |
| Language | English |
| Publisher Date | 2015-04-20 |
| Access Restriction | Open |
| Subject Keyword | Ceramic Matrix Composites Damage Accumulation Monitoring Environmental Barrier Coatings Heat of Combustion Nondestructive Tests Damage Assessment Temperature Gradients Tensile Tests Silicon Carbides Mechanical Properties Electrical Resistance Coatings Engines Environment Simulation Real Time Operation High Temperature Tests Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
