Výsledky vyhledávání - "D.P.F. Souza"

Influence of ZnO addition on microstructure and proton electrical conductivity of BaZr0.8Y0.2O3-δ ceramics

Autor: Leonardo P. Wendler, Kethlinn Ramos, D.P.F. Souza

Publikováno v: Processing and Application of Ceramics, Vol 15, Iss 2, Pp 202-209 (2021)

Sintering aids are widely used to promote densification and grain growth for electrolytes based on yttriumdoped barium zirconate. However, there are some discrepancies in the literature about the influence of these sintering aids on the microstructur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::744861d4e1e076b197acea3f189724e3
https://doi.org/10.2298/pac2102202w

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Investigation about the reason of limited grain growth of Y-doped barium zirconate

Autor: L.P. Wendler, K. Ramos, D.P.F. Souza

Publikováno v: Ceramics International. 45:19120-19126

Yttrium-doped Barium Zirconate is a protonic conductor that shows excellent chemical stability but low sinterability, demanding high sintering temperatures to achieve appropriate densification. However, even after sintering at high temperature, the g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::852cd1f5cecc59ab7d6c8710bdbfe8ef
https://doi.org/10.1016/j.ceramint.2019.06.158

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Eletrólitos de céria dopada com Gd2O3 para pilhas a combustível de óxido sólido

Autor: Guilherme Baltar Crochemore, D.P.F. Souza

Publikováno v: Matéria (Rio de Janeiro). 14:1076-1087

Este trabalho investigou a condutividade elétrica e a microestrutura de amostras com composições Ce1-xGd xO2-δ (x = 0, 5, 10 e 15%em mol) preparadas com CeO2 com 99,9% pureza. A sinterização de corpos de prova obtidos por prensagem isostática

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::936dbf7256245d51182bb8614a87075f
https://doi.org/10.1590/s1517-70762009000300019

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Correlation between Powder Characteristic and Microstructure Development of Y-Doped BaCeO3

Autor: D.P.F. Souza, H. E. Araujo

Publikováno v: 13th International Ceramics Congress - Part D.

Ceramics based on Y-doped BaCeO3 were prepared by citrate process. The X-ray fluorescence shows that barium stoichiometry deviation is established during calcination step. Through the SEM analysis of fracture surface of sintered samples it was possib

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3600c6a819b4d926a530db8ebea2fc8a
https://doi.org/10.4028/www.scientific.net/ast.90.78

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AC impedance study of Ni, Fe, Cu, Mn doped ceria stabilized zirconia ceramics

Autor: D.P.F. Souza, Cesar Renato Foschini, José Arana Varela, P.I. Paulin Filho

Publikováno v: Journal of the European Ceramic Society. 21:1143-1150

Doped zirconia has been used in electronic applications in the cubic crystalline phase. Ceria-stabilized tetragonal zirconia presents high toughness and can also be applied as solid electrolytes. The tetragonal phase of zirconia can be stabilized at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b285ef2712b8bdb1747477bacc7f102
https://doi.org/10.1016/s0955-2219(00)00339-3

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Electrical Measurements in Doped Zirconia-Ceria Ceramics

Autor: Cesar Renato Foschini, Leinig Antonio Perazolli, D.P.F. Souza, José Arana Varela, P.I. Paulin Filho

Publikováno v: Materials for Electrochemical Energy Conversion and Storage

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::80e17ba7688dc5bf365d71cae1ed284a
https://doi.org/10.1002/9781118370858.ch15

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Efeitos das variáveis de formulação de suspensões sobre o comportamento reologico e sobre a microestrutura de filmes cerâmicos NiO-YSZ

Autor: D.P.F. Souza, A.B. Mota Lima

Publikováno v: Matéria (Rio de Janeiro), Volume: 12, Issue: 2, Pages: 383-393, Published: 2007
Matéria (Rio de Janeiro) v.12 n.2 2007
Matéria (Rio de Janeiro. Online)
instacron:RLAM

A preparação de filme cerâmico granular compósito NiO-YSZ por deposição a jato de suspensão exige rigoroso controle das variáveis de processamento, especialmente a reologia da suspensão devido sua importância tanto na viabilização do proc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f68451e78f7c9009c18f26d87513dec8
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762007000200017&lng=en&tlng=en

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