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SEM/EDX and XPS studies of niobium after electropolishing
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
The studies of niobium after electrochemical polishing EP in sulfuric-methanesulfonic acid mixture were performed. The NbOx/Nb surface was studied by SEM/EDX and XPS methods to find out the chemical composition of the ...
Evaluation of materials and micro shot peening to increase resistance to failure due to cyclic fatigue in rotary endodontic files
(Universidad Nacional de ColombiaBogotá - Ingeniería - Doctorado en Ingeniería - Ciencia y Tecnología de MaterialesDepartamento de Ingeniería Mecánica y MecatrónicaFacultad de IngenieríaBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá, 2022-06-03)
This thesis tackles the problem of endodontic fi les fractures from two views; In
the fi rst instance, alternative materials to the classic Nickel-Titanium alloy such as
Titanium-Niobium and Titanium-Molybdenum were ...