Effect of the Precipitating Agent on the Synthesis and Sintering Behavior of 20 mol% Sm-Doped Ceria

Effect of the Precipitating Agent on the Synthesis and Sintering Behavior of 20 mol% Sm-Doped Ceria

Nanocrystalline 20 mol% samaria-doped ceria powders (Ce0.8Sm0.2O1.9) were synthesized by coprecipitation techniques using various precipitating agents in aqueous solution: ammonia, ammonium carbonate, tetramethylammonium hydroxide, and urea. The synthesized powders after calcination at 600°C possess...

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Main Authors: Luca Spiridigliozzi, Gianfranco Dell’Agli, Mattia Biesuz, Vincenzo M. Sglavo, Michele Pansini
Format: Article
Language:English
Published: Hindawi Limited 2016-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2016/6096123
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spelling doaj-dc2bbf272a0a481f823912bf5cd1b0f02020-11-24T21:23:47ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/60961236096123Effect of the Precipitating Agent on the Synthesis and Sintering Behavior of 20 mol% Sm-Doped CeriaLuca Spiridigliozzi0Gianfranco Dell’Agli1Mattia Biesuz2Vincenzo M. Sglavo3Michele Pansini4Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via G. Di Biasio 43, 03043 Cassino, ItalyDepartment of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via G. Di Biasio 43, 03043 Cassino, ItalyDepartment of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, ItalyNational Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121 Florence, ItalyDepartment of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via G. Di Biasio 43, 03043 Cassino, ItalyNanocrystalline 20 mol% samaria-doped ceria powders (Ce0.8Sm0.2O1.9) were synthesized by coprecipitation techniques using various precipitating agents in aqueous solution: ammonia, ammonium carbonate, tetramethylammonium hydroxide, and urea. The synthesized powders after calcination at 600°C possess a fluorite structure with nanometric size although they are characterized by a very different morphology and degree of agglomeration. Remarkable differences appear in the sintering behavior, especially because of the presence of hard agglomerates. The precipitating agent has therefore a crucial role in the coprecipitation process, which influences the morphology of the powders and in turn the sintering behavior. The obtained results clearly reveal that ammonium carbonate and urea are the best precipitating agents to obtain final dense products after sintering.http://dx.doi.org/10.1155/2016/6096123
collection DOAJ
language English
format Article
sources DOAJ
author Luca Spiridigliozzi
Gianfranco Dell’Agli
Mattia Biesuz
Vincenzo M. Sglavo
Michele Pansini
spellingShingle Luca Spiridigliozzi
Gianfranco Dell’Agli
Mattia Biesuz
Vincenzo M. Sglavo
Michele Pansini
Effect of the Precipitating Agent on the Synthesis and Sintering Behavior of 20 mol% Sm-Doped Ceria
Advances in Materials Science and Engineering
author_facet Luca Spiridigliozzi
Gianfranco Dell’Agli
Mattia Biesuz
Vincenzo M. Sglavo
Michele Pansini
author_sort Luca Spiridigliozzi
title Effect of the Precipitating Agent on the Synthesis and Sintering Behavior of 20 mol% Sm-Doped Ceria
title_short Effect of the Precipitating Agent on the Synthesis and Sintering Behavior of 20 mol% Sm-Doped Ceria
title_full Effect of the Precipitating Agent on the Synthesis and Sintering Behavior of 20 mol% Sm-Doped Ceria
title_fullStr Effect of the Precipitating Agent on the Synthesis and Sintering Behavior of 20 mol% Sm-Doped Ceria
title_full_unstemmed Effect of the Precipitating Agent on the Synthesis and Sintering Behavior of 20 mol% Sm-Doped Ceria
title_sort effect of the precipitating agent on the synthesis and sintering behavior of 20 mol% sm-doped ceria
publisher Hindawi Limited
series Advances in Materials Science and Engineering
issn 1687-8434
1687-8442
publishDate 2016-01-01
description Nanocrystalline 20 mol% samaria-doped ceria powders (Ce0.8Sm0.2O1.9) were synthesized by coprecipitation techniques using various precipitating agents in aqueous solution: ammonia, ammonium carbonate, tetramethylammonium hydroxide, and urea. The synthesized powders after calcination at 600°C possess a fluorite structure with nanometric size although they are characterized by a very different morphology and degree of agglomeration. Remarkable differences appear in the sintering behavior, especially because of the presence of hard agglomerates. The precipitating agent has therefore a crucial role in the coprecipitation process, which influences the morphology of the powders and in turn the sintering behavior. The obtained results clearly reveal that ammonium carbonate and urea are the best precipitating agents to obtain final dense products after sintering.
url http://dx.doi.org/10.1155/2016/6096123
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AT mattiabiesuz effectoftheprecipitatingagentonthesynthesisandsinteringbehaviorof20molsmdopedceria
AT vincenzomsglavo effectoftheprecipitatingagentonthesynthesisandsinteringbehaviorof20molsmdopedceria
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