Low temperature synthesis of calcium cobaltites in a solid state reaction
This paper presents synthesis of calcium cobaltites of the nominal composition of Ca^sub 3^Co^sub 4^O^sub 9^ prepared by the solid state reaction. The reaction between CaCO^sub 3^ and Co^sub 3^O^sub 4^ was investigated at 700-900 °C during 20 h and at 800 °C during 2-30 h. Mass changes, phase compos...
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| Veröffentlicht in: | Journal of electroceramics 2007-08, Vol.18 (3-4), p.255-260 |
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| container_title | Journal of electroceramics |
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| creator | SMACZYNSKI, Pawel SOPICKA-LIZER, Malgorzata KOZLOWSKA, Karolina PLEWA, Julian |
| description | This paper presents synthesis of calcium cobaltites of the nominal composition of Ca^sub 3^Co^sub 4^O^sub 9^ prepared by the solid state reaction. The reaction between CaCO^sub 3^ and Co^sub 3^O^sub 4^ was investigated at 700-900 °C during 20 h and at 800 °C during 2-30 h. Mass changes, phase composition and Co^sup +3^, Co^sup +4^ content were examined. Stability of the calcined specimens was tested by DTA/TG. It was found that two phases: Ca^sub 3^Co^sub 4^O^sub 9^ and Ca^sub 3^Co^sub 2^O^sub 6^ were present as a result of calcinations above 800 °C. On the other hand, the temperature of 750 °C was too low for calcium cobaltites to be synthesized. Mono-phase material with Ca^sub 3^Co^sub 4^O^sub 9^ phase was obtained after calcinations at 800 °C but non-stoichiometry of the compound and its relation to the calcinations time were found. Once synthesized, the compound was stable up to 900 °C.[PUBLICATION ABSTRACT] |
| doi_str_mv | 10.1007/s10832-007-9069-7 |
| format | Article |
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The reaction between CaCO^sub 3^ and Co^sub 3^O^sub 4^ was investigated at 700-900 °C during 20 h and at 800 °C during 2-30 h. Mass changes, phase composition and Co^sup +3^, Co^sup +4^ content were examined. Stability of the calcined specimens was tested by DTA/TG. It was found that two phases: Ca^sub 3^Co^sub 4^O^sub 9^ and Ca^sub 3^Co^sub 2^O^sub 6^ were present as a result of calcinations above 800 °C. On the other hand, the temperature of 750 °C was too low for calcium cobaltites to be synthesized. Mono-phase material with Ca^sub 3^Co^sub 4^O^sub 9^ phase was obtained after calcinations at 800 °C but non-stoichiometry of the compound and its relation to the calcinations time were found. Once synthesized, the compound was stable up to 900 °C.[PUBLICATION ABSTRACT]</description><identifier>ISSN: 1385-3449</identifier><identifier>EISSN: 1573-8663</identifier><identifier>DOI: 10.1007/s10832-007-9069-7</identifier><identifier>CODEN: JOELFJ</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Applied sciences ; Building materials. Ceramics. Glasses ; Calcines ; Calcium ; Calcium carbonate ; Ceramic industries ; Ceramics ; Chemical industry and chemicals ; Differential thermal analysis ; Electrotechnical and electronic ceramics ; Exact sciences and technology ; Solid state ; Stability ; Synthesis ; Technical ceramics</subject><ispartof>Journal of electroceramics, 2007-08, Vol.18 (3-4), p.255-260</ispartof><rights>2007 INIST-CNRS</rights><rights>Springer Science+Business Media, LLC 2007</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c462t-461ed664c69317b19ec5e7ee496ec6a8677cea1667f813275e77ee2b39b95fa73</citedby><cites>FETCH-LOGICAL-c462t-461ed664c69317b19ec5e7ee496ec6a8677cea1667f813275e77ee2b39b95fa73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,782,786,27931,27932</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19041023$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>SMACZYNSKI, Pawel</creatorcontrib><creatorcontrib>SOPICKA-LIZER, Malgorzata</creatorcontrib><creatorcontrib>KOZLOWSKA, Karolina</creatorcontrib><creatorcontrib>PLEWA, Julian</creatorcontrib><title>Low temperature synthesis of calcium cobaltites in a solid state reaction</title><title>Journal of electroceramics</title><description>This paper presents synthesis of calcium cobaltites of the nominal composition of Ca^sub 3^Co^sub 4^O^sub 9^ prepared by the solid state reaction. The reaction between CaCO^sub 3^ and Co^sub 3^O^sub 4^ was investigated at 700-900 °C during 20 h and at 800 °C during 2-30 h. Mass changes, phase composition and Co^sup +3^, Co^sup +4^ content were examined. Stability of the calcined specimens was tested by DTA/TG. It was found that two phases: Ca^sub 3^Co^sub 4^O^sub 9^ and Ca^sub 3^Co^sub 2^O^sub 6^ were present as a result of calcinations above 800 °C. On the other hand, the temperature of 750 °C was too low for calcium cobaltites to be synthesized. Mono-phase material with Ca^sub 3^Co^sub 4^O^sub 9^ phase was obtained after calcinations at 800 °C but non-stoichiometry of the compound and its relation to the calcinations time were found. Once synthesized, the compound was stable up to 900 °C.[PUBLICATION ABSTRACT]</description><subject>Applied sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Calcines</subject><subject>Calcium</subject><subject>Calcium carbonate</subject><subject>Ceramic industries</subject><subject>Ceramics</subject><subject>Chemical industry and chemicals</subject><subject>Differential thermal analysis</subject><subject>Electrotechnical and electronic ceramics</subject><subject>Exact sciences and technology</subject><subject>Solid state</subject><subject>Stability</subject><subject>Synthesis</subject><subject>Technical ceramics</subject><issn>1385-3449</issn><issn>1573-8663</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqNkU9r3DAQxU1JoEnaD9CbKLQ5OdVY8sg6hpB_sNBLcxZaZUwVvNZWIxPy7SuzgUAOpad5ML95MO81zReQFyCl-cEgB9W1VbZWom3Nh-YEeqPaAVEdVa2GvlVa24_NKfOTlNIOGk6a-016FoV2e8q-LJkEv8zlN3FkkUYR_BTishMhbf1UYiEWcRZecJrio-DiC4lMPpSY5k_N8egnps-v86x5uLn-dXXXbn7e3l9dbtqgsSutRqBHRB3QKjBbsBR6MkTaIgX0AxoTyAOiGQdQnanLuu22ym5tP3qjzprzg-8-pz8LcXG7yIGmyc-UFnYWNGKPFir5_Z-kkrY3ncb_AKXFDlbHr-_Ap7Tkub7rhgFQ11D7CsEBCjkxZxrdPsedzy8OpFvLcoey3CrXstz61LdXY8819DH7OUR-O7RSg-yU-guOnpMc</recordid><startdate>20070801</startdate><enddate>20070801</enddate><creator>SMACZYNSKI, Pawel</creator><creator>SOPICKA-LIZER, Malgorzata</creator><creator>KOZLOWSKA, Karolina</creator><creator>PLEWA, Julian</creator><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20070801</creationdate><title>Low temperature synthesis of calcium cobaltites in a solid state reaction</title><author>SMACZYNSKI, Pawel ; SOPICKA-LIZER, Malgorzata ; KOZLOWSKA, Karolina ; PLEWA, Julian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c462t-461ed664c69317b19ec5e7ee496ec6a8677cea1667f813275e77ee2b39b95fa73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Applied sciences</topic><topic>Building materials. Ceramics. Glasses</topic><topic>Calcines</topic><topic>Calcium</topic><topic>Calcium carbonate</topic><topic>Ceramic industries</topic><topic>Ceramics</topic><topic>Chemical industry and chemicals</topic><topic>Differential thermal analysis</topic><topic>Electrotechnical and electronic ceramics</topic><topic>Exact sciences and technology</topic><topic>Solid state</topic><topic>Stability</topic><topic>Synthesis</topic><topic>Technical ceramics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>SMACZYNSKI, Pawel</creatorcontrib><creatorcontrib>SOPICKA-LIZER, Malgorzata</creatorcontrib><creatorcontrib>KOZLOWSKA, Karolina</creatorcontrib><creatorcontrib>PLEWA, Julian</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of electroceramics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SMACZYNSKI, Pawel</au><au>SOPICKA-LIZER, Malgorzata</au><au>KOZLOWSKA, Karolina</au><au>PLEWA, Julian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low temperature synthesis of calcium cobaltites in a solid state reaction</atitle><jtitle>Journal of electroceramics</jtitle><date>2007-08-01</date><risdate>2007</risdate><volume>18</volume><issue>3-4</issue><spage>255</spage><epage>260</epage><pages>255-260</pages><issn>1385-3449</issn><eissn>1573-8663</eissn><coden>JOELFJ</coden><abstract>This paper presents synthesis of calcium cobaltites of the nominal composition of Ca^sub 3^Co^sub 4^O^sub 9^ prepared by the solid state reaction. The reaction between CaCO^sub 3^ and Co^sub 3^O^sub 4^ was investigated at 700-900 °C during 20 h and at 800 °C during 2-30 h. Mass changes, phase composition and Co^sup +3^, Co^sup +4^ content were examined. Stability of the calcined specimens was tested by DTA/TG. It was found that two phases: Ca^sub 3^Co^sub 4^O^sub 9^ and Ca^sub 3^Co^sub 2^O^sub 6^ were present as a result of calcinations above 800 °C. On the other hand, the temperature of 750 °C was too low for calcium cobaltites to be synthesized. Mono-phase material with Ca^sub 3^Co^sub 4^O^sub 9^ phase was obtained after calcinations at 800 °C but non-stoichiometry of the compound and its relation to the calcinations time were found. Once synthesized, the compound was stable up to 900 °C.[PUBLICATION ABSTRACT]</abstract><cop>Heidelberg</cop><pub>Springer</pub><doi>10.1007/s10832-007-9069-7</doi><tpages>6</tpages></addata></record> |
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| subjects | Applied sciences Building materials. Ceramics. Glasses Calcines Calcium Calcium carbonate Ceramic industries Ceramics Chemical industry and chemicals Differential thermal analysis Electrotechnical and electronic ceramics Exact sciences and technology Solid state Stability Synthesis Technical ceramics |
| title | Low temperature synthesis of calcium cobaltites in a solid state reaction |
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