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Thermal and chemical expansion properties of La0.2Sr0.8Fe0.55Ti0.45O3-x
The thermal and chemical expansion coefficients for La0.2Sr0.8Fe0.55Ti0.45O3-x were measured at 800 < =T < =1200 deg C and at 1X10-15 < =pO2 < =0.21 atm. Measurements of the total expansion coefficient in air, on heating and cooling between room temperature and 1200 deg C, are reproducib...
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| Published in: | Solid state ionics 2005-11, Vol.176 (35-36), p.2671-2676 |
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| Main Authors: | , |
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| Language: | English |
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| container_end_page | 2676 |
| container_issue | 35-36 |
| container_start_page | 2671 |
| container_title | Solid state ionics |
| container_volume | 176 |
| creator | Park, Chan Young Jacobson, Allan J |
| description | The thermal and chemical expansion coefficients for La0.2Sr0.8Fe0.55Ti0.45O3-x were measured at 800 < =T < =1200 deg C and at 1X10-15 < =pO2 < =0.21 atm. Measurements of the total expansion coefficient in air, on heating and cooling between room temperature and 1200 deg C, are reproducible. The average thermal expansion coefficient of La0.2Sr0.8Fe0.55Ti0.45O3-x is 9.3+/-1.1X10-6 K-1 over the whole temperature range, similar to the values reported for other titanium substituted perovskites and yttria-stabilized zirconia. The chemical expansion coefficients measured at 800 deg C vary linearly with the degree of oxygen non-stoichiometry. At higher temperatures, the chemical expansion shows a pronounced non-linear dependence on stoichiometry. At oxygen partial pressures below 10-6 atm, the expansion shows evidence of the slow kinetic behavior previously observed in stoichiometry and conductivity measurements. |
| doi_str_mv | 10.1016/j.ssi.2005.08.003 |
| format | article |
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Measurements of the total expansion coefficient in air, on heating and cooling between room temperature and 1200 deg C, are reproducible. The average thermal expansion coefficient of La0.2Sr0.8Fe0.55Ti0.45O3-x is 9.3+/-1.1X10-6 K-1 over the whole temperature range, similar to the values reported for other titanium substituted perovskites and yttria-stabilized zirconia. The chemical expansion coefficients measured at 800 deg C vary linearly with the degree of oxygen non-stoichiometry. At higher temperatures, the chemical expansion shows a pronounced non-linear dependence on stoichiometry. At oxygen partial pressures below 10-6 atm, the expansion shows evidence of the slow kinetic behavior previously observed in stoichiometry and conductivity measurements.</description><identifier>ISSN: 0167-2738</identifier><identifier>DOI: 10.1016/j.ssi.2005.08.003</identifier><language>eng</language><ispartof>Solid state ionics, 2005-11, Vol.176 (35-36), p.2671-2676</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Park, Chan Young</creatorcontrib><creatorcontrib>Jacobson, Allan J</creatorcontrib><title>Thermal and chemical expansion properties of La0.2Sr0.8Fe0.55Ti0.45O3-x</title><title>Solid state ionics</title><description>The thermal and chemical expansion coefficients for La0.2Sr0.8Fe0.55Ti0.45O3-x were measured at 800 < =T < =1200 deg C and at 1X10-15 < =pO2 < =0.21 atm. Measurements of the total expansion coefficient in air, on heating and cooling between room temperature and 1200 deg C, are reproducible. The average thermal expansion coefficient of La0.2Sr0.8Fe0.55Ti0.45O3-x is 9.3+/-1.1X10-6 K-1 over the whole temperature range, similar to the values reported for other titanium substituted perovskites and yttria-stabilized zirconia. The chemical expansion coefficients measured at 800 deg C vary linearly with the degree of oxygen non-stoichiometry. At higher temperatures, the chemical expansion shows a pronounced non-linear dependence on stoichiometry. At oxygen partial pressures below 10-6 atm, the expansion shows evidence of the slow kinetic behavior previously observed in stoichiometry and conductivity measurements.</description><issn>0167-2738</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNotjr1OwzAURj2ARCk8AFsmtphrO7ZvRlTRUilSB8JcOe616ip_xKnUxycSTEffGT4dxl4EcAHCvF14SpFLAM0BOYC6Y6vF21xahQ_sMaULABiFZsV29ZmmzrWZ60-ZP1MX_TLoNro-xaHPxmkYaZojpWwIWeWAy68JOG4JuNZ1BF7og8pvT-w-uDbR8z_X7Hv7UW8-8-qw22_eq3wUwsx5WQqpqbFBeuO0RAAr0TvX2KW8wCC8AJQKQ9E0aNyJpNOOQlCFUkEpVGv2-ve7hP1cKc3HLiZPbet6Gq7pKEsLWEqtfgFKVUtA</recordid><startdate>20051115</startdate><enddate>20051115</enddate><creator>Park, Chan Young</creator><creator>Jacobson, Allan J</creator><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20051115</creationdate><title>Thermal and chemical expansion properties of La0.2Sr0.8Fe0.55Ti0.45O3-x</title><author>Park, Chan Young ; Jacobson, Allan J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p116t-99125eb7f2c6a52800728caab710148f1c108238f4bb86ade2a5aeff3433f3383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Park, Chan Young</creatorcontrib><creatorcontrib>Jacobson, Allan J</creatorcontrib><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Solid state ionics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Park, Chan Young</au><au>Jacobson, Allan J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal and chemical expansion properties of La0.2Sr0.8Fe0.55Ti0.45O3-x</atitle><jtitle>Solid state ionics</jtitle><date>2005-11-15</date><risdate>2005</risdate><volume>176</volume><issue>35-36</issue><spage>2671</spage><epage>2676</epage><pages>2671-2676</pages><issn>0167-2738</issn><abstract>The thermal and chemical expansion coefficients for La0.2Sr0.8Fe0.55Ti0.45O3-x were measured at 800 < =T < =1200 deg C and at 1X10-15 < =pO2 < =0.21 atm. Measurements of the total expansion coefficient in air, on heating and cooling between room temperature and 1200 deg C, are reproducible. The average thermal expansion coefficient of La0.2Sr0.8Fe0.55Ti0.45O3-x is 9.3+/-1.1X10-6 K-1 over the whole temperature range, similar to the values reported for other titanium substituted perovskites and yttria-stabilized zirconia. The chemical expansion coefficients measured at 800 deg C vary linearly with the degree of oxygen non-stoichiometry. At higher temperatures, the chemical expansion shows a pronounced non-linear dependence on stoichiometry. At oxygen partial pressures below 10-6 atm, the expansion shows evidence of the slow kinetic behavior previously observed in stoichiometry and conductivity measurements.</abstract><doi>10.1016/j.ssi.2005.08.003</doi><tpages>6</tpages></addata></record> |
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| ispartof | Solid state ionics, 2005-11, Vol.176 (35-36), p.2671-2676 |
| issn | 0167-2738 |
| language | eng |
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| source | ScienceDirect Journals |
| title | Thermal and chemical expansion properties of La0.2Sr0.8Fe0.55Ti0.45O3-x |
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