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Growth kinetics of the s sub h center on magnesium oxide using electron paramagnetic resonance
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Jayne, J. P. |
| Copyright Year | 1971 |
| Description | Electron paramagnetic resonance spectroscopy was used to study the growth of S sub H centers on magnesium oxide powder which had hydrogen adsorbed on its surface. The centers were produced by ultraviolet radiation. The effects of both radiation intensity and hydrogen pressure were also studied. At constant hydrogen pressure and radiation dose, the initial S sub H center growth rate was found to be zero order. Beyond the initial region the growth rate deviated from zero order and finally approached saturation. The results are interpreted in terms of a model which assumes that the S sub H center is a hydrogen atom associated with a surface vacancy. Saturation appears to result from a limited supply of surface vacancies. |
| File Size | 652203 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19720003028 |
| Archival Resource Key | ark:/13960/t04z0205x |
| Language | English |
| Publisher Date | 1971-11-01 |
| Access Restriction | Open |
| Subject Keyword | Physics, Atomic, Molecular, And Nuclear Crystal Growth Ultraviolet Radiation Pressure Effects Metal Powder Hydrogen Magnesium Oxides Electron Paramagnetic Resonance Vacancies Crystal Defects Radiation Dosage 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 |
