Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/52524
Título : Compositionally graded YSZ–NiO composites by surface laser melting
Autor : Merino, R. I., Peña, J. I., Orera, V. M.
Fecha de publicación : 2010
Editor: Elsevier
Resumen: Laser surface melting has been applied to near eutectic NiO–YSZ sintered ceramics. The objective is to generate a functional gradient composite material with graded microstructure and composition. At low solidification rates the resultant material has a graded composition, with a severe NiO segregation towards the surface. A thick NiO layer whose thickness depends on the travelling speed is formed. Below this layer the microstructure is eutectic like with composition varying with depth. In contact with the ceramic, excess YSZ coming from the hypereutectic composition forms an almost continuous YSZ layer. The thickness of both segregated layers, NiO and YSZ can be controlled by traverse speed. Thickness decreases as travelling speed increases until a limiting travelling rate of 110 mm/h, at which no more segregation is found. Possible causes to explain the relevant NiO segregation towards the surface are discussed.
Descripción : El pdf del artículo es la versión post-print.
Versión del editor: http://dx.doi.org/10.1016/j.jeurceramsoc.2009.04.031
URI : http://hdl.handle.net/10261/52524
Identificadores: doi: 10.1016/j.jeurceramsoc.2009.04.031
issn: 0955-2219
e-issn: 1873-619X
Citación : Journal of the European Ceramic Society 30(2): 147-152 (2010)
Appears in Collections:(ICMA) Artículos

Files in This Item:
File Description SizeFormat 
Compositionally graded.pdf665,75 kBAdobe PDFView/Open
Show full item record
 
CSIC SFX LinksSFX Query

Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.