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Thermodynamic analysis of chemical stability of ceramic materials in hydrogen-containing atmospheres at high temperatures
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Misra, Ajay K. |
| Copyright Year | 1990 |
| Description | The chemical stability of several ceramic materials in hydrogen-containing environments was analyzed with thermodynamic considerations in mind. Equilibrium calculations were made as a function of temperature, moisture content, and total system pressure. The following ceramic materials were considered in this study: SiC, Si3N4, SiO2, Al2O3, mullite, ZrO2, Y2O3, CaO, MgO, BeO, TiB2, TiC, HfC, and ZrC. On the basis of purely thermodynamic arguments, upper temperature limits are suggested for each material for long-term use in H2-containing atmospheres. |
| File Size | 1701946 |
| Page Count | 32 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900006756 |
| Archival Resource Key | ark:/13960/t6d26tr2w |
| Language | English |
| Publisher Date | 1990-01-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Pressure Effects Mullites Chemical Analysis Ceramics High Temperature Silicon Dioxide Thermodynamics Moisture Content Zirconium Oxides Beryllium Oxides Temperature Effects Magnesium Oxides Aluminum Oxides 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 |
