{"id":"https://openalex.org/W2330009352","doi":"https://doi.org/10.2497/jjspm.50.480","title":"Synthesis of Ca3Co4O9 Powders by Ultrasonic Spray Pyrolysis Method and the Electrical Properties of the Sintered Bodies","display_name":"Synthesis of Ca3Co4O9 Powders by Ultrasonic Spray Pyrolysis Method and the Electrical Properties of the Sintered Bodies","publication_year":2003,"publication_date":"2003-01-01","ids":{"openalex":"https://openalex.org/W2330009352","doi":"https://doi.org/10.2497/jjspm.50.480","mag":"2330009352"},"language":"en","primary_location":{"id":"doi:10.2497/jjspm.50.480","doi":"https://doi.org/10.2497/jjspm.50.480","is_oa":true,"landing_page_url":"https://doi.org/10.2497/jjspm.50.480","pdf_url":"https://www.jstage.jst.go.jp/article/jjspm1947/50/6/50_6_480/_pdf","source":{"id":"https://openalex.org/S4210178523","display_name":"Journal of the Japan Society of Powder and Powder Metallurgy","issn_l":"0532-8799","issn":["0532-8799","1880-9014"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","poland-20","russia-white-list-4"],"host_organization":"https://openalex.org/P4322697533","host_organization_name":"Japan Society of Powder and Powder Metallurgy","host_organization_lineage":["https://openalex.org/P4322697533"],"host_organization_lineage_names":["Japan Society of Powder and Powder Metallurgy"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the Japan Society of Powder and Powder Metallurgy","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://www.jstage.jst.go.jp/article/jjspm1947/50/6/50_6_480/_pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Masayuki Eguchi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I159385669","display_name":"Chiba University","ror":"https://ror.org/01hjzeq58","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masayuki Eguchi","raw_affiliation_strings":["Materials Chemistry and Physics, graduate School of Science and Technology, Chiba University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Materials Chemistry and Physics, graduate School of Science and Technology, Chiba University","institution_ids":["https://openalex.org/I159385669"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034196548","display_name":"Shin Nishiyama","orcid":"https://orcid.org/0000-0002-9974-715X","observed_orcids":["https://orcid.org/0000-0002-9974-715X"]},"institutions":[{"id":"https://openalex.org/I159385669","display_name":"Chiba University","ror":"https://ror.org/01hjzeq58","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shin Nishiyama","raw_affiliation_strings":["Materials Technology, Faculty of Engineering, Chiba University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Materials Technology, Faculty of Engineering, Chiba University","institution_ids":["https://openalex.org/I159385669"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103966944","display_name":"Takeo Hattori","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I159385669","display_name":"Chiba University","ror":"https://ror.org/01hjzeq58","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takeo Hattori","raw_affiliation_strings":["Materials Technology, Faculty of Engineering, Chiba University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Materials Technology, Faculty of Engineering, Chiba University","institution_ids":["https://openalex.org/I159385669"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I159385669"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"50","issue":"6","first_page":"480","last_page":"484"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10440","display_name":"Advanced Thermoelectric Materials and Devices","score":0.3970000147819519,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10440","display_name":"Advanced Thermoelectric Materials and Devices","score":0.3970000147819519,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10311","display_name":"Advancements in Solid Oxide Fuel Cells","score":0.3359000086784363,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13251","display_name":"Electrical and Thermal Properties of Materials","score":0.1761000007390976,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/ca3co4o9","display_name":"Ca3Co4O9","score":0.9990000128746033},{"id":"https://openalex.org/keywords/ultrasonic-spray-pyrolysis","display_name":"ultrasonic spray pyrolysis","score":0.9769999980926514},{"id":"https://openalex.org/keywords/calcium-cobalt-oxide","display_name":"calcium cobalt oxide","score":0.7319999933242798},{"id":"https://openalex.org/keywords/powder-synthesis","display_name":"powder synthesis","score":0.6290000081062317},{"id":"https://openalex.org/keywords/sintering","display_name":"sintering","score":0.796999990940094},{"id":"https://openalex.org/keywords/electrical-conductivity","display_name":"electrical conductivity","score":0.9620000123977661},{"id":"https://openalex.org/keywords/seebeck-coefficient","display_name":"Seebeck coefficient","score":0.9950000047683716},{"id":"https://openalex.org/keywords/solid-state-synthesis","display_name":"solid-state synthesis","score":0.6150000095367432},{"id":"https://openalex.org/keywords/solvent-effects","display_name":"solvent effects","score":0.609000027179718},{"id":"https://openalex.org/keywords/density","display_name":"density","score":0.4490000009536743},{"id":"https://openalex.org/keywords/high-temperature-superconductors","display_name":"high-temperature superconductors","score":0.5730000138282776}],"concepts":[{"id":"https://openalex.org/C2777581544","wikidata":"https://www.wikidata.org/wiki/Q844613","display_name":"Sintering","level":2,"score":0.743046224117279},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.7258391976356506},{"id":"https://openalex.org/C2780471494","wikidata":"https://www.wikidata.org/wiki/Q146505","display_name":"Solvent","level":2,"score":0.6261513829231262},{"id":"https://openalex.org/C7082614","wikidata":"https://www.wikidata.org/wiki/Q849523","display_name":"Calcination","level":3,"score":0.5948114395141602},{"id":"https://openalex.org/C112625512","wikidata":"https://www.wikidata.org/wiki/Q1091448","display_name":"Seebeck coefficient","level":3,"score":0.5746936202049255},{"id":"https://openalex.org/C69990965","wikidata":"https://www.wikidata.org/wiki/Q65402698","display_name":"Electrical resistivity and conductivity","level":2,"score":0.511104166507721},{"id":"https://openalex.org/C36759035","wikidata":"https://www.wikidata.org/wiki/Q176848","display_name":"Pyrolysis","level":2,"score":0.5043624639511108},{"id":"https://openalex.org/C13965031","wikidata":"https://www.wikidata.org/wiki/Q243545","display_name":"Nuclear chemistry","level":1,"score":0.4612734317779541},{"id":"https://openalex.org/C544153396","wikidata":"https://www.wikidata.org/wiki/Q11426","display_name":"Metal","level":2,"score":0.4606930911540985},{"id":"https://openalex.org/C2779587474","wikidata":"https://www.wikidata.org/wiki/Q1066303","display_name":"Spray drying","level":2,"score":0.4531084895133972},{"id":"https://openalex.org/C107814960","wikidata":"https://www.wikidata.org/wiki/Q611957","display_name":"Solid-state","level":2,"score":0.45287805795669556},{"id":"https://openalex.org/C2779851234","wikidata":"https://www.wikidata.org/wiki/Q50690","display_name":"Oxide","level":2,"score":0.43160080909729004},{"id":"https://openalex.org/C42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","level":1,"score":0.3916454017162323},{"id":"https://openalex.org/C113196181","wikidata":"https://www.wikidata.org/wiki/Q485223","display_name":"Analytical Chemistry (journal)","level":2,"score":0.387198269367218},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.20666378736495972},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.20294654369354248},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.1663724184036255},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.16338494420051575},{"id":"https://openalex.org/C97346530","wikidata":"https://www.wikidata.org/wiki/Q487005","display_name":"Thermal conductivity","level":2,"score":0.13944795727729797},{"id":"https://openalex.org/C147789679","wikidata":"https://www.wikidata.org/wiki/Q11372","display_name":"Physical chemistry","level":1,"score":0.1220456063747406},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.11140194535255432},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.10665339231491089},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2497/jjspm.50.480","doi":"https://doi.org/10.2497/jjspm.50.480","is_oa":true,"landing_page_url":"https://doi.org/10.2497/jjspm.50.480","pdf_url":"https://www.jstage.jst.go.jp/article/jjspm1947/50/6/50_6_480/_pdf","source":{"id":"https://openalex.org/S4210178523","display_name":"Journal of the Japan Society of Powder and Powder Metallurgy","issn_l":"0532-8799","issn":["0532-8799","1880-9014"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","poland-20","russia-white-list-4"],"host_organization":"https://openalex.org/P4322697533","host_organization_name":"Japan Society of Powder and Powder Metallurgy","host_organization_lineage":["https://openalex.org/P4322697533"],"host_organization_lineage_names":["Japan Society of Powder and Powder Metallurgy"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the Japan Society of Powder and Powder Metallurgy","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.2497/jjspm.50.480","doi":"https://doi.org/10.2497/jjspm.50.480","is_oa":true,"landing_page_url":"https://doi.org/10.2497/jjspm.50.480","pdf_url":"https://www.jstage.jst.go.jp/article/jjspm1947/50/6/50_6_480/_pdf","source":{"id":"https://openalex.org/S4210178523","display_name":"Journal of the Japan Society of Powder and Powder Metallurgy","issn_l":"0532-8799","issn":["0532-8799","1880-9014"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","poland-20","russia-white-list-4"],"host_organization":"https://openalex.org/P4322697533","host_organization_name":"Japan Society of Powder and Powder Metallurgy","host_organization_lineage":["https://openalex.org/P4322697533"],"host_organization_lineage_names":["Japan Society of Powder and Powder Metallurgy"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the Japan Society of Powder and Powder Metallurgy","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2330009352.pdf","grobid_xml":"https://content.openalex.org/works/W2330009352.grobid-xml"},"referenced_works_count":4,"referenced_works":["https://openalex.org/W2022480599","https://openalex.org/W2039314234","https://openalex.org/W2086909282","https://openalex.org/W2089239519"],"related_works":["https://openalex.org/W2143950447","https://openalex.org/W2077889097","https://openalex.org/W3120659163","https://openalex.org/W2030187764","https://openalex.org/W3196788179","https://openalex.org/W2898021485","https://openalex.org/W2800260764","https://openalex.org/W2593718861","https://openalex.org/W2056833514","https://openalex.org/W2518037068"],"abstract_inverted_index":{"Ca3Co4O9":[0],"was":[1,18,39,43,130,154,172],"synthesized":[2],"by":[3,63,91,112,126,134,144,158,170,181],"ultrasonic":[4],"spray":[5],"pyrolysis":[6],"(USP)":[7],"method.":[8],"The":[9,41,68,81,96,119,136],"concentration":[10],"of":[11,31,98,115,121,139,166],"metal":[12],"ions":[13],"in":[14,45,107,147],"the":[15,28,46,60,88,92,99,113,116,122,140,167],"starting":[16,117],"solution":[17,35,38,42],"0.1":[19],"mol/l":[20,23],"or":[21,36],"0.01":[22],"as":[24,27],"Ca3Co4O9,":[25],"and":[26,48,75,109],"solvent,":[29],"each":[30],"pure":[32],"water,":[33],"H2O2":[34],"HNO3":[37],"used.":[40],"sprayed":[44],"furnace":[47],"pyrolyzed":[49],"at":[50,72,78,150,174],"1073":[51,73,151,175],"K.":[52,80],"X-ray":[53],"powder":[54],"diffraction":[55],"analysis":[56],"confirmed":[57],"that":[58],"all":[59],"powders":[61,69,89,105],"prepared":[62,90,102,125,143,169],"USP":[64,104,145,171],"were":[65,70,85],"Ca-Co":[66],"oxide.":[67],"calcined":[71],"K":[74],"then":[76],"sintered":[77,100,123,141],"1173":[79],"same":[82],"sintering":[83],"conditions":[84],"used":[86],"for":[87],"solid":[93,127,159,182],"state":[94,128,160,183],"reaction.":[95,161,184],"density":[97,120],"bodies":[101,124,142,168],"from":[103],"ranged":[106,146],"2.5-2.8gcm-3":[108],"they":[110],"differed":[111],"solvent":[114],"solution.":[118],"reaction":[129],"higher":[131,155],"than":[132,156,179],"those":[133,157,180],"USP.":[135],"electrical":[137],"conductivity":[138],"4700-5000":[148],"Sm-1":[149],"K,":[152,176],"which":[153],"In":[162],"contrast,":[163],"Seebeck":[164],"coefficient":[165],"106-108\u03bcVK-1":[173],"being":[177],"smaller":[178]},"counts_by_year":[],"updated_date":"2026-11-13T13:42:25.865203","created_date":"2016-06-24T00:00:00"}