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DIGITAL.CSIC
Article . 2009 . Peer-reviewed
Data sources: DIGITAL.CSIC
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Efectos térmicos inducidos durante el crecimiento del compuesto eutéctico Al2O3-ZrO2 (Y2O3) por fusión zonal con láser

Authors: Peña, J. I.; Ester, Francisco Javier; Sola, D.;

Efectos térmicos inducidos durante el crecimiento del compuesto eutéctico Al2O3-ZrO2 (Y2O3) por fusión zonal con láser

Abstract

[ES] En este artículo se describen las tensiones térmicas generadas durante el enfriamiento de barras eutécticas de Al2O3/ZrO2 (Y2O3) crecidas por fusión zonal con láser. Se ha calculado el diámetro máximo con el que se pueden crecer las barras sin que se agrieten por los elevados gradientes térmicos presentes durante el crecimiento, siendo este diámetro de 1.2 mm. De forma experimental se ha determinado que, para bajas velocidades de crecimiento (20 mm/h), se pueden obtener barras libres de grietas con diámetros inferiores a 1.3 mm. Este trabajo completa uno anterior en el que se describía la estabilidad de la zona fundida durante el crecimiento de estos materiales.

[EN] A study on the thermal stresses induced by the high thermal gradients during the growth by laser floating zone of Al2O3-ZrO2 (Y2O3) bars in the eutectic composition is presented. We have calculated a maximum diameter of 1.2 mm for bars free of cracks very close to the experimental one of 1.3 mm. This work completes a previous one that described the stability conditions of the floating zone during the growth of this material.

Agradecemos al Ministerio de Ciencia y Tecnología español la financiación de este trabajo a través del proyecto MAT2006- 13005-C03-01. Los autores agradecen a V.M. Orera, R.I. Merino, P.B. Oliete y A. Larrea la lectura crítica del manuscrito y sus sugerencias. FJ Ester y D. Sola agradecen respectivamente al CSIC y a la Universidad de Zaragoza, y conjuntamente a BSH Electrodomésticos España, S.A., la financiación de sus contratos.

Peer reviewed

Country
Spain
Related Organizations
Keywords

Zona fundida, sistema Al2O3-ZrO2(Y2O3), Foating zone, Directional solidification, Zona fundid, tensiones térmica, directional solidification, Clay industries. Ceramics. Glass, Tensiones térmicas, Al2O3-ZrO2(Y2O3) system, solidificación direcciona, Sistema Al2O3-ZrO2(Y2O3), TP785-869, thermal stresses, Floating zone, Solidificación direccional, Thermal stresses

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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