Study of dynamical properties in β-TCP/CH layers
Título del documento: Study of dynamical properties in β-TCP/CH layers
Revue: Revista mexicana de física
Base de datos: PERIÓDICA
Número de sistema: 000381244
ISSN: 0035-001X
Autores: 1
1
2
Instituciones: 1Universidad del Valle, Cali, Valle del Cauca. Colombia
Año:
Periodo: Mar-Abr
Volumen: 61
Número: 2
Paginación: 137-148
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, teórico
Resumen en inglés β-Tricalcium phosphate/Chitosan (β-TCP/Ch) coatings were deposited on 316L stainless steel (316L SS) substrates by a cathodic electro-deposition technique at different coating compositions. The crystal lattice arrangements were analyzed by X-Ray diffraction (XRD), and the results indicated that the crystallographic structure of β-TCP was affected by the inclusion of the chitosan content. The changes in the surface morphology as a function ofincreasing chitosan in the coatings via scanning electron microscopy (SEM) and atomic force microscopy (AFM) showed the root-mean squares hardness of the β-TCP/Ch coatings decreased by further increasing chitosan percentage. The elastic-plastic characteristics of the coatings were determined by conducting nanoindentation test, indicating that the increase if chitosan percentage is directly related to increasing the hardness and elastic modulus of the β-TCP/Ch coatings. Tribological characterization was performed by scratch test and pin-on-disk test to analyze the changes in the surface wear the β-TCP/Ch coatings. Finally, the results indicated an improvement in the mechanical and tribological properties of the β-TCP/Ch coatings as a function of increasing of the chitosan percentage
Disciplinas: Física y astronomía
Palabras clave: Física de materia condensada,
Superficies,
Monocapas,
Recubrimientos,
Técnicas electroquímicas,
Dureza
Keyword: Physics and astronomy,
Condensed matter physics,
Surfaces,
Monolayers,
Coatings,
Electrochemical techniques,
Hardness
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