Solution Synthesis of Cubic Spinel Mn-Ni-Cu-O Thermistor Powder
DC Field | Value | Language |
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dc.contributor.author | Le, Duc Thang | - |
dc.contributor.author | Ju, Heongkyu | - |
dc.date.available | 2021-04-30T00:35:47Z | - |
dc.date.created | 2021-03-29 | - |
dc.date.issued | 2021-03 | - |
dc.identifier.issn | 1996-1944 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/80877 | - |
dc.description.abstract | Toward the development of NTCR thermistors, nanocrystalline Mn–Ni–Cu–O powder was synthesized from a mixed chloride aqueous solution by a simple co-precipitation method.The introduction of an oxidizing agent (H2O2) into the solution led to the partial oxidation of Mn2+ ions into Mn3+ ions, which enabled the collected powder to be well crystallized at 650 °C. Such a low calcining temperature resulted in fine particles with a mean size of 60 nm, which significantly promoted densification of the resulting ceramics. As a result, a dense and homogenous microstructure with a relative density up to 97.2% was achieved for pellets sintered at 1100 °C. Furthermore, these sintered ceramics exhibited a room temperature resistivity (ρ25) of 67 Ω·cmand a thermistor constant (B25/85) of 2843 K, which make them suitable for use in industrial thermistors. In addition, electrical stability was greatly improved when the ceramics were prepared by a new two-step sintering method. The results suggest that the co-precipitation route with the introduction of H2O2 is suitable for the fabrication of cubic spinel thermistor nanopowders. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.relation.isPartOf | Materials | - |
dc.title | Solution Synthesis of Cubic Spinel Mn-Ni-Cu-O Thermistor Powder | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000640057800001 | - |
dc.identifier.doi | 10.3390/ma14061389 | - |
dc.identifier.bibliographicCitation | Materials, v.14, no.6 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85102918461 | - |
dc.citation.title | Materials | - |
dc.citation.volume | 14 | - |
dc.citation.number | 6 | - |
dc.contributor.affiliatedAuthor | Le, Duc Thang | - |
dc.contributor.affiliatedAuthor | Ju, Heongkyu | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Co-precipitation | - |
dc.subject.keywordAuthor | Cubic spinel | - |
dc.subject.keywordAuthor | Nanoparticle | - |
dc.subject.keywordAuthor | Nickel manganite | - |
dc.subject.keywordAuthor | Sintering | - |
dc.subject.keywordAuthor | Thermistor | - |
dc.subject.keywordPlus | Chlorine compounds | - |
dc.subject.keywordPlus | Coprecipitation | - |
dc.subject.keywordPlus | Hydrogen peroxide | - |
dc.subject.keywordPlus | Nanocrystals | - |
dc.subject.keywordPlus | Sintering | - |
dc.subject.keywordPlus | Calcining temperature | - |
dc.subject.keywordPlus | Electrical stability | - |
dc.subject.keywordPlus | Partial oxidations | - |
dc.subject.keywordPlus | Room-temperature resistivity | - |
dc.subject.keywordPlus | Sintered ceramics | - |
dc.subject.keywordPlus | Solution synthesis | - |
dc.subject.keywordPlus | Thermistor constant | - |
dc.subject.keywordPlus | Two step sintering methods | - |
dc.subject.keywordPlus | Thermistors | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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