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Materials Science and Engineering A 435436 (2006) 468473 Fabrication of transparent alumina (Al2O3) nanofibers by electrospinning

Summary: Materials Science and Engineering A 435­436 (2006) 468­473
Fabrication of transparent alumina (Al2O3) nanofibers by electrospinning
Abdul-Majeed Azad
Department of Chemical and Environmental Engineering, 3052 Nitschke Hall, The University of Toledo,
2801 W. Bancroft Street, Toledo, OH 43606-3390, USA
Received 7 May 2006; received in revised form 7 July 2006; accepted 14 July 2006
70­90 kV/m) applied between the tip of a needle and the target plate. Upon firing and sintering under carefully pre-selected time­temperature
profiles (heating rate, temperature and soak time), high-purity and crystalline alumina nanofibers retaining the morphological features of the
electrospun composite fibers were obtained. Tools such as laser Raman spectroscopy, X-ray diffraction, scanning and transmission electron
microscopy together with energy dispersive spectroscopy and selected area electron diffraction were employed to follow the systematic evolution
of the ceramic phase and its morphological features in the fired fibers.
© 2006 Elsevier B.V. All rights reserved.
Keywords: Alumina; Nanofibers; Electrospinning; Electron microscopy
1. Introduction
Electrospinning (e-spinning) is one of bottom-up approaches
that are gaining increasing attention in recent years for the fab-
rication of ceramic nanostructures. The technique of e-spinning
was discovered more than 90 years ago [1,2] and has been exclu-


Source: Azad, Abdul-Majeed - Department of Chemical and Environmental Engineering, University of Toledo


Collections: Materials Science; Energy Storage, Conversion and Utilization