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handle: 10261/43943 , 10651/28819
En este trabajo se describe un nuevo método de procesamiento coloidal para obtener materiales nanoestructurados de base aluminio con partículas intermetálicas ZrAl3. A partir de una mezcla controlada en alcohol, de polvos de aluminio con un alcóxido precursor de zirconio (C12H28O4Zr) se obtiene, mediante un tratamiento térmico en un horno convencional con atmósfera controlada o por prensado uniaxial en caliente, un polvo nanoestructurado formado por cristales de aluminio sobre los que cristalizan, de forma homogénea, nanopartículas intermetálicas de ZrAl3. La identificación del intermetálico se efectuó por difracción de rayos X y microscopía electrónica de barrido. El comportamiento mecánico de los materiales nanoestructurados desarrollados se evaluó a partir de ensayos de dureza y mediante el ensayo miniatura de punzonado (EMP). Los resultados muestran que la presencia del intermetálico de zirconio hasta un 1,0 % (en peso) de zirconio aumenta la dureza y rigidez de la matriz de aluminio, al tiempo que incrementa su resistencia mecánica (límite elástico y resistencia a la tracción).
Metal Matrix Composites: Science and Applications, Intermetallics, Molecular biology, ensayo miniatura de punzonado, FOS: Mechanical engineering, Aerospace Engineering, Mechanical properties, Ductile Fracture in Sheet Metal Forming, Metal Matrix Composites, ZrAl3, Intermetallic Phases, pulvimetalurgia, Engineering, intermetálicos, Powder metallurgy, Colloidal synthesis, síntesis coloidal, Pulvimetalurgia, zral3, Biology, propiedades mecánicas, Aluminio, Mining engineering. Metallurgy, Propiedades mecánicas, Mechanical Engineering, Ensayo miniatura de punzonado, TN1-997, aluminio, Friction Stir Processing, ZrAl 3, Small punch test, Chemistry, Physical Sciences, Síntesis coloidal, Composite Materials, Aluminium Alloys for Aerospace and Automotive Applications, Aluminum, Intermetálicos
Metal Matrix Composites: Science and Applications, Intermetallics, Molecular biology, ensayo miniatura de punzonado, FOS: Mechanical engineering, Aerospace Engineering, Mechanical properties, Ductile Fracture in Sheet Metal Forming, Metal Matrix Composites, ZrAl3, Intermetallic Phases, pulvimetalurgia, Engineering, intermetálicos, Powder metallurgy, Colloidal synthesis, síntesis coloidal, Pulvimetalurgia, zral3, Biology, propiedades mecánicas, Aluminio, Mining engineering. Metallurgy, Propiedades mecánicas, Mechanical Engineering, Ensayo miniatura de punzonado, TN1-997, aluminio, Friction Stir Processing, ZrAl 3, Small punch test, Chemistry, Physical Sciences, Síntesis coloidal, Composite Materials, Aluminium Alloys for Aerospace and Automotive Applications, Aluminum, Intermetálicos
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