Formation of pseudobrookite through gaseous chlorides and by solid-state reaction
Pseudobrookite (Fe2TiO5) was prepared from Fe2O3–TiO2 mixtures at 850 and 950 °C in air, argon and chlorine atmospheres. In the latter case, an experimental arrangement in which Fe2O3 and TiO2 were placed in separated compartments under the same chlorine atmosphere was also used. Pseudobrookite was...
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| Veröffentlicht in: | Journal of materials science 1998-03, Vol.33 (6), p.1563-1569 |
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| container_title | Journal of materials science |
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| creator | GENNARI, F. C ANDRADE GAMBOA, J. J PASQUEVICH, D. M |
| description | Pseudobrookite (Fe2TiO5) was prepared from Fe2O3–TiO2 mixtures at 850 and 950 °C in air, argon and chlorine atmospheres. In the latter case, an experimental arrangement in which Fe2O3 and TiO2 were placed in separated compartments under the same chlorine atmosphere was also used. Pseudobrookite was identified by X-ray powder diffraction and microstructurally characterized by scanning electron microscopy. The very different pseudobrookite morphologies in each atmosphere allow us to propose that the formation mechanism involves Ti4+ diffusion in the Fe2O3 surface in air and argon atmospheres and vapour transport through FeCl3(g) and TiCI4(g) in the chlorine atmosphere. |
| doi_str_mv | 10.1023/A:1017563720300 |
| format | Article |
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The very different pseudobrookite morphologies in each atmosphere allow us to propose that the formation mechanism involves Ti4+ diffusion in the Fe2O3 surface in air and argon atmospheres and vapour transport through FeCl3(g) and TiCI4(g) in the chlorine atmosphere.</description><identifier>ISSN: 0022-2461</identifier><identifier>EISSN: 1573-4803</identifier><identifier>DOI: 10.1023/A:1017563720300</identifier><identifier>CODEN: JMTSAS</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Argon ; Atmospheres ; Chemistry ; Chlorine ; Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...) ; Exact sciences and technology ; Ferric chloride ; Inorganic chemistry and origins of life ; Iron chlorides ; Materials science ; Morphology ; Preparations and properties ; Scanning electron microscopy ; Titanium dioxide ; X ray powder diffraction</subject><ispartof>Journal of materials science, 1998-03, Vol.33 (6), p.1563-1569</ispartof><rights>1998 INIST-CNRS</rights><rights>Journal of Materials Science is a copyright of Springer, (1998). 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The very different pseudobrookite morphologies in each atmosphere allow us to propose that the formation mechanism involves Ti4+ diffusion in the Fe2O3 surface in air and argon atmospheres and vapour transport through FeCl3(g) and TiCI4(g) in the chlorine atmosphere.</description><subject>Argon</subject><subject>Atmospheres</subject><subject>Chemistry</subject><subject>Chlorine</subject><subject>Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)</subject><subject>Exact sciences and technology</subject><subject>Ferric chloride</subject><subject>Inorganic chemistry and origins of life</subject><subject>Iron chlorides</subject><subject>Materials science</subject><subject>Morphology</subject><subject>Preparations and properties</subject><subject>Scanning electron microscopy</subject><subject>Titanium dioxide</subject><subject>X ray powder diffraction</subject><issn>0022-2461</issn><issn>1573-4803</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNotzc1LwzAcxvEgCtbp2WtAr9VfkqZJvI3hVBiIoOeS17Wza2rSHvbfO3Gn5_Lh-yB0S-CBAGWPyycCRPCaCQoM4AwVhAtWVhLYOSoAKC1pVZNLdJXzDgC4oKRAH-uY9nrq4oBjwGP2s4smxfjdTR5PbYrztsVbnX2cM7ZtH1PnfMZ6cNgccI5958o86SNOXtu_zjW6CLrP_ua0C_S1fv5cvZab95e31XJTWsrrqbSecW-0EaJSAjwx2qkQPAs81N6BlUQrYxhznFpFhDOScalc8KAq52rJFujuvzum-DP7PDW7OKfheNlQypUCLit-VPcnpbPVfUh6sF1uxtTtdTo0lEgBoma_O7tfoQ</recordid><startdate>19980315</startdate><enddate>19980315</enddate><creator>GENNARI, F. 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C</au><au>ANDRADE GAMBOA, J. J</au><au>PASQUEVICH, D. M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Formation of pseudobrookite through gaseous chlorides and by solid-state reaction</atitle><jtitle>Journal of materials science</jtitle><date>1998-03-15</date><risdate>1998</risdate><volume>33</volume><issue>6</issue><spage>1563</spage><epage>1569</epage><pages>1563-1569</pages><issn>0022-2461</issn><eissn>1573-4803</eissn><coden>JMTSAS</coden><abstract>Pseudobrookite (Fe2TiO5) was prepared from Fe2O3–TiO2 mixtures at 850 and 950 °C in air, argon and chlorine atmospheres. In the latter case, an experimental arrangement in which Fe2O3 and TiO2 were placed in separated compartments under the same chlorine atmosphere was also used. Pseudobrookite was identified by X-ray powder diffraction and microstructurally characterized by scanning electron microscopy. The very different pseudobrookite morphologies in each atmosphere allow us to propose that the formation mechanism involves Ti4+ diffusion in the Fe2O3 surface in air and argon atmospheres and vapour transport through FeCl3(g) and TiCI4(g) in the chlorine atmosphere.</abstract><cop>Heidelberg</cop><pub>Springer</pub><doi>10.1023/A:1017563720300</doi><tpages>7</tpages></addata></record> |
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| subjects | Argon Atmospheres Chemistry Chlorine Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...) Exact sciences and technology Ferric chloride Inorganic chemistry and origins of life Iron chlorides Materials science Morphology Preparations and properties Scanning electron microscopy Titanium dioxide X ray powder diffraction |
| title | Formation of pseudobrookite through gaseous chlorides and by solid-state reaction |
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