Adherence and electrochemical behavior of calcium titanate coatings onto 304 stainless steel substrate



Título del documento: Adherence and electrochemical behavior of calcium titanate coatings onto 304 stainless steel substrate
Revue: Revista mexicana de física
Base de datos: PERIÓDICA
Número de sistema: 000378301
ISSN: 0035-001X
Autores: 1
1
2
3
4
4
Instituciones: 1Universidad del Valle, Escuela de Ingeniería de Materiales, Cali, Valle del Cauca. Colombia
2Escuela Colombiana de Ingeniería Julio Garavito, Escuela de Ingeniería Mecánica, Bogotá. Colombia
3Corporación Universidad Autónoma de Occidente, Grupo de Investigación en Ciencia e Ingeniería de Materiales, Cali, Valle del Cauca. Colombia
4Universidad del Cauca, Departamento de Física, Popayán, Cauca. Colombia
Año:
Periodo: May-Jun
Volumen: 60
Número: 3
Paginación: 210-216
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, teórico
Resumen en inglés Calcium titanate has been proposed as a coating for biomedical applications but it has not been reported characterization of adhesion failure mechanisms or electrochemical properties in time. In this work have been studied these properties of a calcium titanate coating growth onto AISI 304 steel deposited by r.f. magnetron sputtering. It was found that the coating has a critical adhesive load of 6.53 ± 0.14 N. With respect to its electrochemical properties potentiodynamic polarization curves show that the calcium titanate coating provides protection to AISI 304 steel. However, EIS indicates that even though metal dissolution occur through the pores in the coating, this leads to the precipitation of salts that block pores; this precipitates layer acts like an additional barrier to the metal dissolution in the system
Disciplinas: Física y astronomía,
Química
Palabras clave: Física,
Fisicoquímica y química teórica,
Biomateriales,
Titanato de calcio,
Pulverización catódica,
Prueba de Scracht,
Corrosión
Keyword: Physics and astronomy,
Chemistry,
Physics,
Physical and theoretical chemistry,
Biomaterials,
Calcium titanate,
Magnetron sputtering,
Scratch test,
Corrosion
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