| Автор | Ricard, A. |
| Автор | Gordiets, B. F. |
| Автор | Pinheiro, M. J. |
| Автор | Ferreira, C. M. |
| Автор | Baravian, G. |
| Автор | Amorim, J. |
| Автор | Bockel, S. |
| Автор | Michel, H. |
| Дата выпуска | 1998 |
| dc.description | The production of N and H atoms has been studied in DC and HF N<sub>2</sub>-H<sub>2</sub> flowing discharges and post-discharges in connection with nitriding of iron substrates. Experimentally, the N and H atoms have been detected by emission spectroscopy and Laser Induced Fluorescence (LIF). A strong increase of the Mayn gas atom density (N or H) was found when a small amount of a second gas (H<sub>2</sub> or N<sub>2</sub>) was added. This increase in N or H atom densities is interpreted by a model describing the kinetics in the reactive gas volume and on the surface of the reactor walls (pyrex tube). In particular, it is shown that the destruction probabilities of N and H atoms on the tube wall are reduced by a factor of about 2 as a few % of H<sub>2</sub> or N<sub>2</sub> is introduced into N<sub>2</sub> or H<sub>2</sub>. Correlations are established between the density of N and H atoms and the thickness and quality of iron nitride layers growing on iron substrates located within a reactor and placed in the post-discharge of a N<sub>2</sub>−H<sub>2</sub> HF flowing discharge. Under the conditions of maximum N and H atom density, thick ϵ−Fe<sub>2</sub>N<sub>1−x </sub> layers without iron oxide superficial sublayer have been found on the iron surface. |
| Формат | application.pdf |
| Издатель | EDP Sciences |
| Копирайт | © EDP Sciences, 1998 |
| Название | Diagnostic and modeling of N<sub>2</sub>-H<sub>2</sub> discharges for iron nitriding* |
| Тип | research-article |
| DOI | 10.1051/epjap:1998246 |
| Electronic ISSN | 1286-0050 |
| Print ISSN | 1286-0042 |
| Журнал | The European Physical Journal Applied Physics |
| Том | 4 |
| Первая страница | 87 |
| Последняя страница | 93 |
| Аффилиация | Ricard A.; CPAT, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse, France |
| Аффилиация | Gordiets B. F.; Centro de Fisica de Plasmas, Instituto Superior Tecnico, 1096 Lisboa, Portugal |
| Аффилиация | Pinheiro M. J.; Centro de Fisica de Plasmas, Instituto Superior Tecnico, 1096 Lisboa, Portugal |
| Аффилиация | Ferreira C. M.; Centro de Fisica de Plasmas, Instituto Superior Tecnico, 1096 Lisboa, Portugal |
| Аффилиация | Baravian G.; LPGP-Université Paris-Sud, 91405 Orsay, France |
| Аффилиация | Amorim J.; Departamento de Fisica, Instituto Tecnologico de Aeronautica, Centro Tecnico Aeroespacial, 12228-900 - Sao Jose de Campos, Brazil |
| Аффилиация | Bockel S.; LSGS, École des Mines, Parc de Saurupt, 54042 Nancy, France |
| Аффилиация | Michel H.; LSGS, École des Mines, Parc de Saurupt, 54042 Nancy, France |
| Выпуск | 1 |
