| タイトル | Diffusion and solubility of oxygen in silver |
| 本文（外部サイト） | http://hdl.handle.net/2060/19860012184 |
| 著者（英） | Miller, G.; Eichenauer, W. |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1985-11-01 |
| 言語 | eng |
| 内容記述 | The diffusion and solubility of oxygen in Ag in the temperature range between 412 and 862 C was determined. The following interpolation formula was found for the solubility: L = 8.19.1/100.exp(-11 860/RT)Mol O2/g.At.Ag.at 1/.5. The process obeys the Sieverts square root law within the limits of error. The dissolution of oxygen in Ag may be accompanied by the dissociation of the oxygen molecules into atoms. The tests on Ag-foils reveal that below a temperature of about 500 C a higher solubility is simulated by the adsorption of oxygen. The diffusion coefficient of oxygen in silver obeys the following equation: D = 2.72.1/100.exp(-11 000/RT)sq cm/s. The relatively low activation energy of 11 kcal/g.At suggests that the diffusion of oxygen takes places over interstitial sites. |
| NASA分類 | METALLIC MATERIALS |
| レポートNO | 86N21655
NASA-TM-77938
NAS 1.15:77938 |
| 権利 | No Copyright |
