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DC Field | Value | Language |
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dc.citation.endPage | 304 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 291 | - |
dc.citation.title | JOURNAL OF RHEOLOGY | - |
dc.citation.volume | 63 | - |
dc.contributor.author | Eom, Youngho | - |
dc.contributor.author | Kim, Fredrick | - |
dc.contributor.author | Yang, Seong Eun | - |
dc.contributor.author | Son, Jae Sung | - |
dc.contributor.author | Chae, Han Gi | - |
dc.date.accessioned | 2023-12-21T19:36:32Z | - |
dc.date.available | 2023-12-21T19:36:32Z | - |
dc.date.created | 2019-02-09 | - |
dc.date.issued | 2019-03 | - |
dc.description.abstract | In order to achieve high-quality 3D printing of inorganic materials, a thorough evaluation of appropriate rheological characteristics and methodologies for formulating all-inorganic inks is required. We recently reported all-inorganic inks using BiSbTe-based thermoelectric particles coupled with a chalcogenidometallate (ChaM) inorganic binder. In the current study, we analyzed the rheological behavior of the all-inorganic inks to assess printability and 3D structural retention with respect to the ChaM content. The stress sweep and three-interval thixotropy test (3ITT) were conducted to mimic a 3D printing and interpret the flow behavior under nonlinear viscoelastic region. The binder-free inks showed a sharp overshoot of the loss modulus (G″) followed by the fluctuation of both the storage modulus G′ and G″ in the stress range of 10-50 Pa. In addition, the inks developed stronger colloidal structure than the initial state after the 3ITT, resulting in the non-uniform jetting. The nonlinear flow of the inks became stable by incorporating ChaM. However, the excessive ChaM (37.5 wt. %) brought about stress-induced structure regeneration analogous to the binder-free inks. The 3D structure integrity was interpreted by yield stress and solid-like characteristics based on the frequency sweep results after undergoing deformation. Poor printability from the 12.5 wt. % ChaM-containing ink was correlated to low yield stress (2 Pa) and a high slope of the G′ curve. However, the 25 wt. % ChaM-containing ink gave a high yield stress of 48 Pa and a low G′ curve slope of 0.2 even after nonlinear deformation, resulting in high 3D shape retention and printability. | - |
dc.identifier.bibliographicCitation | JOURNAL OF RHEOLOGY, v.63, no.2, pp.291 - 304 | - |
dc.identifier.doi | 10.1122/1.5058078 | - |
dc.identifier.issn | 0148-6055 | - |
dc.identifier.scopusid | 2-s2.0-85061387417 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/25855 | - |
dc.identifier.url | https://sor.scitation.org/doi/10.1122/1.5058078 | - |
dc.identifier.wosid | 000460936900007 | - |
dc.language | 영어 | - |
dc.publisher | JOURNAL RHEOLOGY AMER INST PHYSICS | - |
dc.title | Rheological design of 3D printable all-inorganic inks using BiSbTe-based thermoelectric materials | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Mechanics | - |
dc.relation.journalResearchArea | Mechanics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | DETERMINE STRUCTURAL REGENERATION | - |
dc.subject.keywordPlus | INTERVAL THIXOTROPY TEST | - |
dc.subject.keywordPlus | KAPPA-CARRAGEENAN | - |
dc.subject.keywordPlus | COLLOIDAL GELS | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | SHEAR | - |
dc.subject.keywordPlus | POLYACRYLONITRILE | - |
dc.subject.keywordPlus | POLYMER | - |
dc.subject.keywordPlus | FLOW | - |
dc.subject.keywordPlus | FLOCCULATION | - |
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