Effect of Oxygen Partial Pressure on the Formation of Metastable Phases from an Undercooled YbFeO3 Melt Using an Aerodynamic Levitator

Effect of Oxygen Partial Pressure on the Formation of Metastable Phases from an Undercooled YbFeO3 Melt Using an Aerodynamic Levitator

The Yb2O3–Fe2O3 system was studied to investigate the effect of oxygen partial pressure on the formation of metastable phases over a wide range of oxygen partial pressures from 105 to 10−1 Pa. Two kinds of metastable phases, with space groups of P63cm and P63/mmc, were found through rapid solidifica...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of the American Ceramic Society 2009-04, Vol.92 (4), p.903-910
Hauptverfasser: Vijaya Kumar, Malahalli S., Kuribayashi, Kazuhiko, Kitazono, Koichi
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 910
container_issue 4
container_start_page 903
container_title Journal of the American Ceramic Society
container_volume 92
creator Vijaya Kumar, Malahalli S.
Kuribayashi, Kazuhiko
Kitazono, Koichi
description The Yb2O3–Fe2O3 system was studied to investigate the effect of oxygen partial pressure on the formation of metastable phases over a wide range of oxygen partial pressures from 105 to 10−1 Pa. Two kinds of metastable phases, with space groups of P63cm and P63/mmc, were found through rapid solidification of an undercooled YbFeO3 melt in an atmosphere with reduced Po2. The crystal structure of the as‐solidified samples changed from orthorhombic Pbnm to hexagonal P63cm and P63/mmc with decreasing Po2. X‐ray diffractometric and scanning electron microscopic results confirmed the existence of various phases in the as‐solidified samples. The stabilities of each phase were studied by annealing the bulk sample in the thermogravimetric–differential thermal analysis (TG‐DTA) furnace up to 1673 K, and the equilibrium phase diagram was constructed for the Yb–Fe–O system at 1473 K. TG analysis showed an increase of the sample mass during annealing and revealed that the existence of Fe2+, which has an ionic radius larger than that of Fe3+, decreases the tolerance factor and therefore destabilizes the perovskite structure.
doi_str_mv 10.1111/j.1551-2916.2009.02974.x
format Article
fullrecord <record><control><sourceid>proquest_wiley</sourceid><recordid>TN_cdi_proquest_miscellaneous_34492613</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>34492613</sourcerecordid><originalsourceid>FETCH-LOGICAL-i3774-c660fb0ffe680ff607ca9b531a5cb90ab4e877a7e2a981d95d2e4357d129dbfb3</originalsourceid><addsrcrecordid>eNqNkc2O0zAURiMEEmXgHbxil-CfJI5XqKraAurQCqgQbKyb5GbGJYlnbJdpX4DnxpmiWXMXvv7ko0-WTpIQRjMW590hY0XBUq5YmXFKVUa5knl2epbMnh6eJzNKKU9lxenL5JX3hxiZqvJZ8mfZddgEYjuyPZ1vcCQ7cMFAT3YOvT86JHYk4RbJyroBgokpstcYwAeoeyS7W_DoSefsQGAk-7FF11jbY0t-1Cvcigj3gey9GW8mYI7OtucRBtOQDf42AYJ1r5MXHfQe3_zbV8l-tfy2-JButuuPi_kmNULKPG3KknY1jV8uq3iWVDag6kIwKJpaUahzrKQEiRxUxVpVtBxzUciWcdXWXS2ukreX3jtn74_ogx6Mb7DvYUR79FrkueIlE_8BciqYkBF8fwEfTI9nfefMAO6sGdWTHn3QkwU9WdCTHv2oR5_0p_li-XiPDemlwfiAp6cGcL90KYUs9PfPa61-rr4Ua_5VL8RfD52W3A</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>34203137</pqid></control><display><type>article</type><title>Effect of Oxygen Partial Pressure on the Formation of Metastable Phases from an Undercooled YbFeO3 Melt Using an Aerodynamic Levitator</title><source>Access via Wiley Online Library</source><creator>Vijaya Kumar, Malahalli S. ; Kuribayashi, Kazuhiko ; Kitazono, Koichi</creator><creatorcontrib>Vijaya Kumar, Malahalli S. ; Kuribayashi, Kazuhiko ; Kitazono, Koichi</creatorcontrib><description>The Yb2O3–Fe2O3 system was studied to investigate the effect of oxygen partial pressure on the formation of metastable phases over a wide range of oxygen partial pressures from 105 to 10−1 Pa. Two kinds of metastable phases, with space groups of P63cm and P63/mmc, were found through rapid solidification of an undercooled YbFeO3 melt in an atmosphere with reduced Po2. The crystal structure of the as‐solidified samples changed from orthorhombic Pbnm to hexagonal P63cm and P63/mmc with decreasing Po2. X‐ray diffractometric and scanning electron microscopic results confirmed the existence of various phases in the as‐solidified samples. The stabilities of each phase were studied by annealing the bulk sample in the thermogravimetric–differential thermal analysis (TG‐DTA) furnace up to 1673 K, and the equilibrium phase diagram was constructed for the Yb–Fe–O system at 1473 K. TG analysis showed an increase of the sample mass during annealing and revealed that the existence of Fe2+, which has an ionic radius larger than that of Fe3+, decreases the tolerance factor and therefore destabilizes the perovskite structure.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/j.1551-2916.2009.02974.x</identifier><language>eng</language><publisher>Malden, USA: Blackwell Publishing Inc</publisher><ispartof>Journal of the American Ceramic Society, 2009-04, Vol.92 (4), p.903-910</ispartof><rights>2009 The American Ceramic Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1551-2916.2009.02974.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1551-2916.2009.02974.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,781,785,1418,27929,27930,45579,45580</link.rule.ids></links><search><creatorcontrib>Vijaya Kumar, Malahalli S.</creatorcontrib><creatorcontrib>Kuribayashi, Kazuhiko</creatorcontrib><creatorcontrib>Kitazono, Koichi</creatorcontrib><title>Effect of Oxygen Partial Pressure on the Formation of Metastable Phases from an Undercooled YbFeO3 Melt Using an Aerodynamic Levitator</title><title>Journal of the American Ceramic Society</title><description>The Yb2O3–Fe2O3 system was studied to investigate the effect of oxygen partial pressure on the formation of metastable phases over a wide range of oxygen partial pressures from 105 to 10−1 Pa. Two kinds of metastable phases, with space groups of P63cm and P63/mmc, were found through rapid solidification of an undercooled YbFeO3 melt in an atmosphere with reduced Po2. The crystal structure of the as‐solidified samples changed from orthorhombic Pbnm to hexagonal P63cm and P63/mmc with decreasing Po2. X‐ray diffractometric and scanning electron microscopic results confirmed the existence of various phases in the as‐solidified samples. The stabilities of each phase were studied by annealing the bulk sample in the thermogravimetric–differential thermal analysis (TG‐DTA) furnace up to 1673 K, and the equilibrium phase diagram was constructed for the Yb–Fe–O system at 1473 K. TG analysis showed an increase of the sample mass during annealing and revealed that the existence of Fe2+, which has an ionic radius larger than that of Fe3+, decreases the tolerance factor and therefore destabilizes the perovskite structure.</description><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqNkc2O0zAURiMEEmXgHbxil-CfJI5XqKraAurQCqgQbKyb5GbGJYlnbJdpX4DnxpmiWXMXvv7ko0-WTpIQRjMW590hY0XBUq5YmXFKVUa5knl2epbMnh6eJzNKKU9lxenL5JX3hxiZqvJZ8mfZddgEYjuyPZ1vcCQ7cMFAT3YOvT86JHYk4RbJyroBgokpstcYwAeoeyS7W_DoSefsQGAk-7FF11jbY0t-1Cvcigj3gey9GW8mYI7OtucRBtOQDf42AYJ1r5MXHfQe3_zbV8l-tfy2-JButuuPi_kmNULKPG3KknY1jV8uq3iWVDag6kIwKJpaUahzrKQEiRxUxVpVtBxzUciWcdXWXS2ukreX3jtn74_ogx6Mb7DvYUR79FrkueIlE_8BciqYkBF8fwEfTI9nfefMAO6sGdWTHn3QkwU9WdCTHv2oR5_0p_li-XiPDemlwfiAp6cGcL90KYUs9PfPa61-rr4Ua_5VL8RfD52W3A</recordid><startdate>200904</startdate><enddate>200904</enddate><creator>Vijaya Kumar, Malahalli S.</creator><creator>Kuribayashi, Kazuhiko</creator><creator>Kitazono, Koichi</creator><general>Blackwell Publishing Inc</general><scope>BSCLL</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>200904</creationdate><title>Effect of Oxygen Partial Pressure on the Formation of Metastable Phases from an Undercooled YbFeO3 Melt Using an Aerodynamic Levitator</title><author>Vijaya Kumar, Malahalli S. ; Kuribayashi, Kazuhiko ; Kitazono, Koichi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i3774-c660fb0ffe680ff607ca9b531a5cb90ab4e877a7e2a981d95d2e4357d129dbfb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vijaya Kumar, Malahalli S.</creatorcontrib><creatorcontrib>Kuribayashi, Kazuhiko</creatorcontrib><creatorcontrib>Kitazono, Koichi</creatorcontrib><collection>Istex</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of the American Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vijaya Kumar, Malahalli S.</au><au>Kuribayashi, Kazuhiko</au><au>Kitazono, Koichi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Oxygen Partial Pressure on the Formation of Metastable Phases from an Undercooled YbFeO3 Melt Using an Aerodynamic Levitator</atitle><jtitle>Journal of the American Ceramic Society</jtitle><date>2009-04</date><risdate>2009</risdate><volume>92</volume><issue>4</issue><spage>903</spage><epage>910</epage><pages>903-910</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><abstract>The Yb2O3–Fe2O3 system was studied to investigate the effect of oxygen partial pressure on the formation of metastable phases over a wide range of oxygen partial pressures from 105 to 10−1 Pa. Two kinds of metastable phases, with space groups of P63cm and P63/mmc, were found through rapid solidification of an undercooled YbFeO3 melt in an atmosphere with reduced Po2. The crystal structure of the as‐solidified samples changed from orthorhombic Pbnm to hexagonal P63cm and P63/mmc with decreasing Po2. X‐ray diffractometric and scanning electron microscopic results confirmed the existence of various phases in the as‐solidified samples. The stabilities of each phase were studied by annealing the bulk sample in the thermogravimetric–differential thermal analysis (TG‐DTA) furnace up to 1673 K, and the equilibrium phase diagram was constructed for the Yb–Fe–O system at 1473 K. TG analysis showed an increase of the sample mass during annealing and revealed that the existence of Fe2+, which has an ionic radius larger than that of Fe3+, decreases the tolerance factor and therefore destabilizes the perovskite structure.</abstract><cop>Malden, USA</cop><pub>Blackwell Publishing Inc</pub><doi>10.1111/j.1551-2916.2009.02974.x</doi><tpages>8</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0002-7820
ispartof Journal of the American Ceramic Society, 2009-04, Vol.92 (4), p.903-910
issn 0002-7820
1551-2916
language eng
recordid cdi_proquest_miscellaneous_34492613
source Access via Wiley Online Library
title Effect of Oxygen Partial Pressure on the Formation of Metastable Phases from an Undercooled YbFeO3 Melt Using an Aerodynamic Levitator
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-13T01%3A49%3A57IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_wiley&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Effect%20of%20Oxygen%20Partial%20Pressure%20on%20the%20Formation%20of%20Metastable%20Phases%20from%20an%20Undercooled%20YbFeO3%20Melt%20Using%20an%20Aerodynamic%20Levitator&rft.jtitle=Journal%20of%20the%20American%20Ceramic%20Society&rft.au=Vijaya%20Kumar,%20Malahalli%20S.&rft.date=2009-04&rft.volume=92&rft.issue=4&rft.spage=903&rft.epage=910&rft.pages=903-910&rft.issn=0002-7820&rft.eissn=1551-2916&rft_id=info:doi/10.1111/j.1551-2916.2009.02974.x&rft_dat=%3Cproquest_wiley%3E34492613%3C/proquest_wiley%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=34203137&rft_id=info:pmid/&rfr_iscdi=true