Enhancing the photoluminescence and microstructural transformations of Al2O3/glass-ceramic composite coatings by laser irradiation

This work presents an analysis of the crystallization process and the influence of laser surface modification on the crystalline phases and optical responses of Al2O3/glass–ceramic coatings deposited on a brass substrate. We used a CO2 laser at different irradiation powers to change the structure of...

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Autores:
Correa Madrid, Julio Andrés
Murillo Carrillo, Jairo León
Jurado Rosero, Javier
García Cruz, Lina María
Tirado Mejía, Liliana
Colorado, Hernán
Diosa, Jesús Evelio
Chiasera, Alessandro
Goyes, Clara
Tipo de recurso:
Article of journal
Fecha de publicación:
2021
Institución:
Universidad Autónoma de Occidente
Repositorio:
RED: Repositorio Educativo Digital UAO
Idioma:
eng
OAI Identifier:
oai:red.uao.edu.co:10614/13890
Acceso en línea:
https://hdl.handle.net/10614/13890
https://red.uao.edu.co/
Palabra clave:
Láseres
Lasers
Sol–gel method
Alumina
Laser surface modification
Silica-stabilized zirconia glass-ceramics
Rights
openAccess
License
Derechos reservados - MDPI, 2021
Description
Summary:This work presents an analysis of the crystallization process and the influence of laser surface modification on the crystalline phases and optical responses of Al2O3/glass–ceramic coatings deposited on a brass substrate. We used a CO2 laser at different irradiation powers to change the structure of the superficial layer. The photoluminescence response enhanced the resolution of its line shape as the irradiation power increased. X-ray diffraction patterns exhibit the presence of different crystalline phases for the samples irradiated