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Synthesis and Mechanical Characterization of Aluminum Based Composites Prepared by Powder Metallurgy

Published online by Cambridge University Press:  01 February 2011

I. Estrada-Guel ,
J. L. Cardoso ,
C. Careño-Gallardo ,
J. M. Herrera-Ramírez  and
R. Martínez-Sánchez
I. Estrada-Guel
Affiliation:
Centro de Investigación en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnología, Miguel de Cervantes No. 120, CP 31109, Chihuahua, Chih., México. Universidad Autónoma Metropolitana, Depto. de Materiales, Av. San Pablo # 180, Col Reynosa-Tamaulipas CP 02200, México, D. F.
J. L. Cardoso
Affiliation:
Universidad Autónoma Metropolitana, Depto. de Materiales, Av. San Pablo # 180, Col Reynosa-Tamaulipas CP 02200, México, D. F.
C. Careño-Gallardo
Affiliation:
Centro de Investigación en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnología, Miguel de Cervantes No. 120, CP 31109, Chihuahua, Chih., México. Universidad Autónoma Metropolitana, Depto. de Materiales, Av. San Pablo # 180, Col Reynosa-Tamaulipas CP 02200, México, D. F.
J. M. Herrera-Ramírez
Affiliation:
Centro de Investigación en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnología, Miguel de Cervantes No. 120, CP 31109, Chihuahua, Chih., México.
R. Martínez-Sánchez
Affiliation:
Centro de Investigación en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnología, Miguel de Cervantes No. 120, CP 31109, Chihuahua, Chih., México.
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Abstract

Aluminum-based composites prepared from pure Al powder and previously Cu metallized graphite are fabricated by a solid state route and are characterized by X-ray diffraction and scanning electron microscopy in order to follow their microstructural evolution. Composites are processed using powder metallurgy technique in order to obtain cylindrical samples to carry out mechanical testing. Microstructural and mechanical characterizations reveal that, by milling, a homogeneous dispersion of insoluble particles into the Al matrix is obtained; this produces an important improvement in hardness and strength with respect to an un-milled sample. Milling intensity and particle concentration have an important effect on the mechanical properties of the synthesized composites.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1243: Symposium 5 – Advanced Structural Materials , 2009 , 21
Copyright
Copyright © Materials Research Society 2010

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