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Synthesis and characterization of 50-50 wt. lanthanum aluminate-lanthanum zirconate composite dried by spray-drying

Published online by Cambridge University Press:  09 June 2020

W. Hernández Muñoz
Affiliation:
Universidad ECCI, Carrera. 19 No. 49-20, Bogotá, Colombia, Código Postal 111311
J. Zárate Medina
Affiliation:
Instituto de Investigación en Metalurgia y Materiales, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, México
J. Serrato Rodríguez
Affiliation:
Instituto de Investigación en Metalurgia y Materiales, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, México
J. Muñoz Saldaña
Affiliation:
Cinvestav Unidad-Queretaro, Queretaro, Libramiento Norponiente No. 2000, Fracc Real de Juriquilla Querétaro, CP.76230 Querétaro México
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Abstract

Lanthanum aluminate-lanthanum zirconate composite was synthesized by using coprecipitation and powders were dried by spray-drying. Pseudoboehmite was used as a precursor of lanthanum aluminate during the precipitation process. Highly crystalline phases were obtained. Lanthanum zirconate exhibits a pyrochlore structure at lower synthesis temperature (>1500°C). Due drying technique lanthanum aluminate particles appear surrounded by lanthanum zirconate. No other remaining phases were observed and the phase distribution in the composite was homogeneous.

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Copyright © Materials Research Society 2020

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Synthesis and characterization of 50-50 wt. lanthanum aluminate-lanthanum zirconate composite dried by spray-drying
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