Jump to ContentJump to Main Navigation
Show Summary Details
More options …

High Temperature Materials and Processes

Editor-in-Chief: Fukuyama, Hiroyuki

Editorial Board: Waseda, Yoshio / Fecht, Hans-Jörg / Reddy, Ramana G. / Manna, Indranil / Nakajima, Hideo / Nakamura, Takashi / Okabe, Toru / Ostrovski, Oleg / Pericleous, Koulis / Seetharaman, Seshadri / Straumal, Boris / Suzuki, Shigeru / Tanaka, Toshihiro / Terzieff, Peter / Uda, Satoshi / Urban, Knut / Baron, Michel / Besterci, Michael / Byakova, Alexandra V. / Gao, Wei / Glaeser, Andreas / Gzesik, Z. / Hosson, Jeff / Masanori, Iwase / Jacob, Kallarackel Thomas / Kipouros, Georges / Kuznezov, Fedor


IMPACT FACTOR 2018: 0.427
5-year IMPACT FACTOR: 0.471

CiteScore 2018: 0.58

SCImago Journal Rank (SJR) 2018: 0.231
Source Normalized Impact per Paper (SNIP) 2018: 0.377

Open Access
Online
ISSN
2191-0324
See all formats and pricing
More options …
Volume 31, Issue 1

Issues

Effects of Nano Powder Synthesis Methods, Shaping and Sintering Conditions on Microstructure and Oxygen Permeation of La0.6Sr0.4Co0.2Fe0.8O3-Δ (LSCF) Perovskite-type Membranes

Amir Atabak Asadi
  • Research Centre for Membrane Separation Processes, Chemical Engineering Department, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Amir Behrouzifar
  • Research Centre for Membrane Separation Processes, Chemical Engineering Department, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Toraj Mohammadi
  • Corresponding author
  • Research Centre for Membrane Separation Processes, Chemical Engineering Department, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Afshin Pak
  • Engineering Department of Oil & Gas Special Projects, Iranian Central Oil Field Company, Tehran, Iran
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2012-02-09 | DOI: https://doi.org/10.1515/htmp.2011.128

Abstract

La0.6Sr0.4Co0.2Fe0.8O3-Δ (LSCF) nano powders were synthesized via liquid citrate, spray drying, ethanol based sol-gel, auto combustion and EDTA/citrate complexing methods. All primary powders were calcined at 1000°C. XRD results showed that auto combustion method results in the purest powder. The results of SEM micrographs showed that this sample is nano scale and has narrow particle size distribution Effects of pressing pressure, sintering temperature and dwell time on membranes microstructure were investigated. The result showed that the most and the least effective parameters on densification and grain growth are temperature and pressing pressure. The optimum pressing pressure, sintering temperature, and dwell time were 2000 bar, 1200°C, and 8 h, which showed the highest relative density, favorable crystal growth, and nonporous crack-free structure. Effects of sintering conditions on oxygen permeation flux were studied and the results showed that oxygen permeation flux increases with average grain size.

Keywords.: LSCF; membrane; oxygen separation; sintering; grain size; relative density

About the article

Received: 2011-06-08

Accepted: 2011-08-03

Published Online: 2012-02-09

Published in Print: 2012-02-01


Citation Information: High Temperature Materials and Processes, Volume 31, Issue 1, Pages 47–59, ISSN (Online) 2191-0324, ISSN (Print) 0334-6455, DOI: https://doi.org/10.1515/htmp.2011.128.

Export Citation

©2012 by Walter de Gruyter Berlin Boston.Get Permission

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
Amir Atabak Asadi, Amir Behrouzifar, Mona Iravaninia, Toraj Mohammadi, and Afshin Pak
Industrial & Engineering Chemistry Research, 2012, Volume 51, Number 7, Page 3069

Comments (0)

Please log in or register to comment.
Log in