Synthesis and structural characterization of K0.33Gd0.67F2.33 (KGd2F7) and K0.31Gd0.69F1.84O0.27
K0.33Gd0.67F2.33(KGd2F7) is synthesized by solid state reaction between KF and GdF3 at different temperatures (600, 700, 800 and 900 deg C). For all temperatures, the crystal structure of K0.33Gd0.67F2.33 derives from that of the fluorite type. Nevertheless when the synthesis temperature increases,...
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| Veröffentlicht in: | Solid state sciences 2004-11, Vol.6 (11), p.1221-1228 |
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| creator | GREDIN, Patrick LABEGUERIE, Jessica PIERRARD, Angélique VAULAY, Marie-Josée DE KOZAK, Ariel |
| description | K0.33Gd0.67F2.33(KGd2F7) is synthesized by solid state reaction between KF and GdF3 at different temperatures (600, 700, 800 and 900 deg C). For all temperatures, the crystal structure of K0.33Gd0.67F2.33 derives from that of the fluorite type. Nevertheless when the synthesis temperature increases, the X-ray powder pattern exhibits new superstructure diffraction lines. This feature is attributed to an anionic and cationic ordering. A structural model is elaborated and the crystal structure at 700 deg C is determined by the Rietveld method. The oxyfluoride K0.31Gd0.69F1.83O0.27 is synthesized using a sol-gel route. Its crystal structure is close to that of K0.33Gd0.67F2.33 and differs only by a new anionic and cationic ordering. K0.33Gd0.67F2.33 and K0.31Gd0.69F1.83O0.27 are then just particular compositions of the solid solution formulated K1-xGdxF1+2x-2yOy. |
| doi_str_mv | 10.1016/j.solidstatesciences.2004.07.010 |
| format | Article |
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For all temperatures, the crystal structure of K0.33Gd0.67F2.33 derives from that of the fluorite type. Nevertheless when the synthesis temperature increases, the X-ray powder pattern exhibits new superstructure diffraction lines. This feature is attributed to an anionic and cationic ordering. A structural model is elaborated and the crystal structure at 700 deg C is determined by the Rietveld method. The oxyfluoride K0.31Gd0.69F1.83O0.27 is synthesized using a sol-gel route. Its crystal structure is close to that of K0.33Gd0.67F2.33 and differs only by a new anionic and cationic ordering. K0.33Gd0.67F2.33 and K0.31Gd0.69F1.83O0.27 are then just particular compositions of the solid solution formulated K1-xGdxF1+2x-2yOy.</description><identifier>ISSN: 1293-2558</identifier><identifier>EISSN: 1873-3085</identifier><identifier>DOI: 10.1016/j.solidstatesciences.2004.07.010</identifier><language>eng</language><publisher>Paris: Elsevier</publisher><subject>Condensed matter: structure, mechanical and thermal properties ; Crystalline state (including molecular motions in solids) ; Exact sciences and technology ; Physics ; Structure of solids and liquids; crystallography ; Structure of specific crystalline solids ; Theory of crystal structure, crystal symmetry; calculations and modeling</subject><ispartof>Solid state sciences, 2004-11, Vol.6 (11), p.1221-1228</ispartof><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c266t-f83f1a4293b52e17c5341a9989704d42562e3c5fa54f4df4b61f41e3bb46e6c03</citedby><cites>FETCH-LOGICAL-c266t-f83f1a4293b52e17c5341a9989704d42562e3c5fa54f4df4b61f41e3bb46e6c03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16298419$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>GREDIN, Patrick</creatorcontrib><creatorcontrib>LABEGUERIE, Jessica</creatorcontrib><creatorcontrib>PIERRARD, Angélique</creatorcontrib><creatorcontrib>VAULAY, Marie-Josée</creatorcontrib><creatorcontrib>DE KOZAK, Ariel</creatorcontrib><title>Synthesis and structural characterization of K0.33Gd0.67F2.33 (KGd2F7) and K0.31Gd0.69F1.84O0.27</title><title>Solid state sciences</title><description>K0.33Gd0.67F2.33(KGd2F7) is synthesized by solid state reaction between KF and GdF3 at different temperatures (600, 700, 800 and 900 deg C). For all temperatures, the crystal structure of K0.33Gd0.67F2.33 derives from that of the fluorite type. Nevertheless when the synthesis temperature increases, the X-ray powder pattern exhibits new superstructure diffraction lines. This feature is attributed to an anionic and cationic ordering. A structural model is elaborated and the crystal structure at 700 deg C is determined by the Rietveld method. The oxyfluoride K0.31Gd0.69F1.83O0.27 is synthesized using a sol-gel route. Its crystal structure is close to that of K0.33Gd0.67F2.33 and differs only by a new anionic and cationic ordering. K0.33Gd0.67F2.33 and K0.31Gd0.69F1.83O0.27 are then just particular compositions of the solid solution formulated K1-xGdxF1+2x-2yOy.</description><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Crystalline state (including molecular motions in solids)</subject><subject>Exact sciences and technology</subject><subject>Physics</subject><subject>Structure of solids and liquids; crystallography</subject><subject>Structure of specific crystalline solids</subject><subject>Theory of crystal structure, crystal symmetry; calculations and modeling</subject><issn>1293-2558</issn><issn>1873-3085</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNplkEtPwzAQhCMEEqXwH3IBlUPM-hE7uYEQLaiVegDOxnVsNVWaFK97KL-e9CFx4LQjzezs6kuSEQVCgcqHFcGuqSuMJjq0tWutQ8IABAFFgMJZMqCF4hmHIj_vNSt5xvK8uEyuEFcAIKUSg-TrfdfGpcMaU9NWKcawtXEbTJPapQnGRhfqHxPrrk07n06BcD6pgEg1Zr1MR9NJxcbq_rC8d-nBLceUFGIOhKnr5MKbBt3NaQ6Tz_HLx_NrNptP3p6fZpllUsbMF9xTI_ovFzlzVNmcC2rKsigViEqwXDLHbe5NLryovFhI6gV1fLEQ0kkLfJjcHXs3ofveOox6XaN1TWNa121Rs1JKwSTtg4_HoA0dYnBeb0K9NmGnKeg9Wr3S_9HqPVoNSvdo-4rb0y2D1jQ-mNbW-NcjWVkIWvJfuYl79g</recordid><startdate>20041101</startdate><enddate>20041101</enddate><creator>GREDIN, Patrick</creator><creator>LABEGUERIE, Jessica</creator><creator>PIERRARD, Angélique</creator><creator>VAULAY, Marie-Josée</creator><creator>DE KOZAK, Ariel</creator><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20041101</creationdate><title>Synthesis and structural characterization of K0.33Gd0.67F2.33 (KGd2F7) and K0.31Gd0.69F1.84O0.27</title><author>GREDIN, Patrick ; LABEGUERIE, Jessica ; PIERRARD, Angélique ; VAULAY, Marie-Josée ; DE KOZAK, Ariel</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c266t-f83f1a4293b52e17c5341a9989704d42562e3c5fa54f4df4b61f41e3bb46e6c03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Crystalline state (including molecular motions in solids)</topic><topic>Exact sciences and technology</topic><topic>Physics</topic><topic>Structure of solids and liquids; crystallography</topic><topic>Structure of specific crystalline solids</topic><topic>Theory of crystal structure, crystal symmetry; calculations and modeling</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>GREDIN, Patrick</creatorcontrib><creatorcontrib>LABEGUERIE, Jessica</creatorcontrib><creatorcontrib>PIERRARD, Angélique</creatorcontrib><creatorcontrib>VAULAY, Marie-Josée</creatorcontrib><creatorcontrib>DE KOZAK, Ariel</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Solid state sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>GREDIN, Patrick</au><au>LABEGUERIE, Jessica</au><au>PIERRARD, Angélique</au><au>VAULAY, Marie-Josée</au><au>DE KOZAK, Ariel</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis and structural characterization of K0.33Gd0.67F2.33 (KGd2F7) and K0.31Gd0.69F1.84O0.27</atitle><jtitle>Solid state sciences</jtitle><date>2004-11-01</date><risdate>2004</risdate><volume>6</volume><issue>11</issue><spage>1221</spage><epage>1228</epage><pages>1221-1228</pages><issn>1293-2558</issn><eissn>1873-3085</eissn><abstract>K0.33Gd0.67F2.33(KGd2F7) is synthesized by solid state reaction between KF and GdF3 at different temperatures (600, 700, 800 and 900 deg C). For all temperatures, the crystal structure of K0.33Gd0.67F2.33 derives from that of the fluorite type. Nevertheless when the synthesis temperature increases, the X-ray powder pattern exhibits new superstructure diffraction lines. This feature is attributed to an anionic and cationic ordering. A structural model is elaborated and the crystal structure at 700 deg C is determined by the Rietveld method. The oxyfluoride K0.31Gd0.69F1.83O0.27 is synthesized using a sol-gel route. Its crystal structure is close to that of K0.33Gd0.67F2.33 and differs only by a new anionic and cationic ordering. K0.33Gd0.67F2.33 and K0.31Gd0.69F1.83O0.27 are then just particular compositions of the solid solution formulated K1-xGdxF1+2x-2yOy.</abstract><cop>Paris</cop><pub>Elsevier</pub><doi>10.1016/j.solidstatesciences.2004.07.010</doi><tpages>8</tpages></addata></record> |
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| subjects | Condensed matter: structure, mechanical and thermal properties Crystalline state (including molecular motions in solids) Exact sciences and technology Physics Structure of solids and liquids crystallography Structure of specific crystalline solids Theory of crystal structure, crystal symmetry calculations and modeling |
| title | Synthesis and structural characterization of K0.33Gd0.67F2.33 (KGd2F7) and K0.31Gd0.69F1.84O0.27 |
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