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Title: Ceramic/metal nanocomposites by lyophilization: Processing and HRTEM study
Authors: Gutiérrez-González, C. F., Agouram, S., Torrecillas, Ramón, Moya, J. S., Lopez-Esteban, S.
Keywords: Composites
Nanostructures
Freeze-drying
Electron microscopy
Issue Date: Feb-2012
Publisher: Elsevier
Abstract: This work describes a wet-processing route based on spray-freezing and subsequent lyophilization designed to obtain nanostructured ceramic/metal powders. Starting from the ceramic powder and the corresponding metal salt, a water-based suspension is sprayed on liquid nitrogen. The frozen powders are subsequently freeze-dried, calcined and reduced. The material was analyzed using X-ray diffraction analysis at all stages. High resolution transmission electron microscopy studies showed a uniform distribution of metal nanoparticles on the ceramic grain surfaces, good interfaces and high crystallinity, with an average metal particle size in the nanometric range.
Description: 5 páginas, 8 figuras, 1 tabla.-- El pdf del artículo es el manuscrito de autor.
Publisher version (URL): http://dx.doi.org/10.1016/j.materresbull.2011.11.027
URI: http://hdl.handle.net/10261/48247
ISSN: 0025-5408
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Citation: Materials Research Bulletin 47(2): 285-289 (2012)
Appears in Collections:(ICMM) Artículos
(CINN) Artículos
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