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AlN Nanorods synthesized by a Mechanothermal Process

Published online by Cambridge University Press:  25 March 2011

G. Rosas ,
J. Chihuaque ,
C. Patiño-Carachure ,
R. Esparza  and
R. Pérez
G. Rosas
Affiliation:
Instituto de Investigaciones Metalúrgicas, UMSNH, Edificio U, C.U., Morelia, Mich. 58000, México
J. Chihuaque
Affiliation:
Instituto Tecnológico Superior de Irapuato, Apdo. Postal 179, Irapuato, Gto. 36021, México
C. Patiño-Carachure
Affiliation:
Instituto de Investigaciones Metalúrgicas, UMSNH, Edificio U, C.U., Morelia, Mich. 58000, México
R. Esparza
Affiliation:
Department of Physics and Astronomy, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
R. Pérez
Affiliation:
Instituto de Ciencias Físicas, UNAM, P.O. Box 48-3, Cuernavaca, Mor. 62251, México
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Abstract

Well-crystallized AlN nanorods have been produced by mechanical milling and subsequent annealing treatment of the milling powders (mechanothermal process). High purity AlN powders were used as the starting material. Mechanical milling was carried out in a vibratory SPEX mill for 30 h, using vials and balls of silicon nitride. The annealing treatment was carried out at 1200 ºC for 10 min. The characterization of the samples was performed by X-ray diffractometry and transmission electron microscopy (TEM). TEM observations indicated that the synthesized nanorods consisted of 30 nm in diameter and 100 nm in length. High resolution electron microscopy observations have been used in the structural characterization. AlN nanorods exhibit a well-crystallized structure. The growing direction of the nanorods is close to the [001] direction. The structural configurations have been explored through comparisons between experimental HREM images and theoretically simulated images obtained with the multislice method of the dynamical theory of electron diffraction.

Keywords

crystal growthnanostructuretransmission electron microscopy (TEM)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1288: Symposium G – Novel Fabrication Methods for Electronic Devices , 2011 , mrsf10-1288-g06-11
Copyright
Copyright © Materials Research Society 2011

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