Modeling surface processes and kinetics of compound layer formation during plasma nitriding of pure iron
Título del documento: Modeling surface processes and kinetics of compound layer formation during plasma nitriding of pure iron
Revue: Revista mexicana de física
Base de datos: PERIÓDICA
Número de sistema: 000378350
ISSN: 0035-001X
Autores: 1
1
1
1
Instituciones: 1Instituto Tecnológico y de Estudios Superiores de Monterrey, Atizapán, Estado de México. México
Año:
Periodo: May-Jun
Volumen: 60
Número: 3
Paginación: 257-268
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, teórico
Resumen en inglés Different approaches have been developed concerning growth description of the compact nitride layers, especially those produced by ammonia. Nitriding by plasma uses a glow discharge technology to introduce nitrogen to the surface which in turn diffuses itself into the material. During this process, the ion bombardment causes sputtering of the specimen surface. This paper presents a mathematical model of compound layer formation during plasma nitriding of pure iron. The model takes into account the erosion effect at the plasma-solid interface due to sputtering. This erosion effect is computer simulated and adjusted in order to consider its contribution to the study of layer growth kinetics. The model is presented as a moving boundary diffusion problem, which considers the observed qualitative behavior of the process
Disciplinas: Física y astronomía,
Ingeniería
Palabras clave: Física de materia condensada,
Ingeniería de materiales,
Difusión,
Nitridación de plasma,
Cinética de crecimiento,
Pulverización catódica
Keyword: Physics and astronomy,
Engineering,
Condensed matter physics,
Materials engineering,
Diffusion,
Plasma nitriding,
Growth kinetics,
Sputtering
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