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Reaction of cobalt in so2 atmospheric at elevated temperatures
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Jacobson, N. S. Worrell, W. L. |
| Copyright Year | 1983 |
| Description | The reaction rate of cobalt in SO2 argon environments was measured at 650 C, 700 C, 750 C and 800 C. Product scales consist primarily of an interconnected sulfide phase in an oxide matrix. At 700 C to 800 C a thin sulfide layer adjacent to the metal is also observed. At all temperatures, the rapid diffusion of cobalt outward through the interconnected sulfide appears to be important. At 650 C, the reaction rate slows dramatically after five minutes due to a change in the distribution of these sulfides. At 700 C and 750 C the reaction is primarily diffusion controlled values of diffusivity of cobalt (CoS) calculated from this work show favorable agreement with values of diffusivity of cobalt (CoS) calculated from previous sulfidation work. At 800 C, a surface step becomes rate limiting. |
| File Size | 2970247 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830026833 |
| Archival Resource Key | ark:/13960/t0fv3dd1d |
| Language | English |
| Publisher Date | 1983-10-14 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Reaction Products Sulfides Corrosion Reaction Kinetics High Temperature Research Argon Cobalt Gas-metal Interactions Metal Ions Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
