Phase formation and structural transformation of strontium ferrite SrFeOx
Download (220.46 kB)
-
Altmetric Citations
Description
Non-stoichiometric strontium iron oxide is described by an abbreviated formula SrFeOx (2.5 ≤ x ≤ 3.0) exhibits a variety of interesting physical and chemical properties over a broad range of temperatures and in different gaseous environments. The oxide contains a mixture of iron in the trivalent and the rare tetravalent state. The material at elevated temperature is a mixed oxygen conductor and it, or its derivatives,can have practical applications in oxygen conducting devices such as pressure...[Show more]
dc.contributor.author | Schmidt, Marek, Wojciech | |
---|---|---|
dc.date.accessioned | 2009-08-11T03:46:28Z | |
dc.date.accessioned | 2011-01-04T02:36:36Z | |
dc.date.available | 2009-08-11T03:46:28Z | |
dc.date.available | 2011-01-04T02:36:36Z | |
dc.identifier.other | b21038648 | |
dc.identifier.uri | http://hdl.handle.net/1885/48187 | |
dc.description.abstract | Non-stoichiometric strontium iron oxide is described by an abbreviated formula SrFeOx (2.5 ≤ x ≤ 3.0) exhibits a variety of interesting physical and chemical properties over a broad range of temperatures and in different gaseous environments. The oxide contains a mixture of iron in the trivalent and the rare tetravalent state. The material at elevated temperature is a mixed oxygen conductor and it, or its derivatives,can have practical applications in oxygen conducting devices such as pressure driven oxygen generators, partial oxidation reactors in electrodes for solid oxide fuel cells (SOFC). ¶ This thesis examines the behaviour of the material at ambient and elevated temperatures using a broad spectrum of solid state experimental techniques such as: x-ray and neutron powder diffraction,thermogravimetric and calorimetric methods,scanning electron microscopy and Mossbauer spectroscopy. Changes in the oxide were induced using conventional thermal treatment in various atmospheres as well as mechanical energy (ball milling). ¶ ... | |
dc.language.iso | en | |
dc.rights.uri | The Australian National University | |
dc.subject | ferrite | |
dc.subject | SrFeOx | |
dc.subject | SrFeO | |
dc.subject | SrFeO2.5 | |
dc.subject | SrFeO2.75 | |
dc.subject | SrFeO2.875 | |
dc.subject | SrFeO3 | |
dc.subject | Sr2Fe2O5 | |
dc.subject | Sr4Fe4O11 | |
dc.subject | Sr8Fe8O23 | |
dc.subject | SrFe12O19 | |
dc.subject | ionic conductor | |
dc.subject | solid state electrolyte | |
dc.subject | oxygen conductor | |
dc.subject | oxide | |
dc.subject | ferrite | |
dc.subject | non-stoichiometric oxide | |
dc.subject | oxidation | |
dc.subject | carbonation | |
dc.subject | neutron diffraction | |
dc.subject | x-ray diffraction | |
dc.subject | Rietveld method | |
dc.subject | spectroscopy | |
dc.subject | thermogravimetry | |
dc.subject | Mossbauer | |
dc.subject | TGA | |
dc.subject | DTA | |
dc.subject | DSC | |
dc.subject | SEM | |
dc.subject | antiferromagnet | |
dc.subject | Neel point | |
dc.subject | Ellingham plot | |
dc.subject | ball milling | |
dc.subject | mechanochemistry | |
dc.subject | SOFC | |
dc.subject | solid oxide fuel cell | |
dc.subject | oxygen generator | |
dc.subject | oxygen conducting membrane | |
dc.subject | mechanical activation | |
dc.subject | crystal structure | |
dc.subject | mechanical oxidation | |
dc.subject | mechanical carbonation | |
dc.subject | phase diagram | |
dc.subject | perovskite | |
dc.subject | high temperature crystal structurephase transition | |
dc.subject | high temoxygen nonstoichiometry | |
dc.title | Phase formation and structural transformation of strontium ferrite SrFeOx | |
dc.type | Thesis (PhD) | |
dcterms.valid | 2001 | |
local.description.refereed | yes | |
local.type.degree | Doctor of Philosophy (PhD) | |
dc.date.issued | 2001 | |
local.contributor.affiliation | Research School of Physical Sciences and Engineering, Department of Applied Mathematics | |
local.contributor.affiliation | The Australian National University | |
local.identifier.doi | 10.25911/5d7a2b8fa6e52 | |
local.mintdoi | mint | |
Collections | Open Access Theses |
Download
File | Description | Size | Format | Image |
---|---|---|---|---|
01front.pdf | 220.46 kB | Adobe PDF | ||
02whole.pdf | 2.66 MB | Adobe PDF |
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.
Updated: 17 November 2022/ Responsible Officer: University Librarian/ Page Contact: Library Systems & Web Coordinator