Dependence of the bending properties of alumina on the in‐plane printing orientation in direct ink writing.
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| Title: | Dependence of the bending properties of alumina on the in‐plane printing orientation in direct ink writing. |
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| Authors: | Kanno, Teruyoshi1 (AUTHOR) teruyoshi.kanno.r1@dc.tohoku.ac.jp, Kurita, Hiroki1 (AUTHOR) kurita@tohoku.ac.jp, Narita, Fumio1 (AUTHOR) |
| Source: | International Journal of Applied Ceramic Technology. Jul/Aug2025, Vol. 22 Issue 4, p1-9. 9p. |
| Subjects: | Flexural modulus, Specific gravity, Bending strength, Aluminum oxide, Fibers |
| Abstract: | The additive manufacturing (AM) of ceramic bodies often affords structural and mechanical anisotropies depending on the printing orientation and building direction. Thus, in this study, we investigated the influence of in‐plane printing orientation on the bending properties of alumina fabricated via direct ink writing (DIW), an AM technology. Additionally, the DIW fabrication and pretreatment of green bodies were conducted to eliminate the voids between filaments and surface irregularities to focus on individual filament orientation. Bar specimens were sintered at 1200°C to preserve the as‐printed microstructures, achieving relative densities of 77% irrespective of the printing orientation. Furthermore, the sintering shrinkage, bending modulus, and bending strength were 11%, 190 GPa, and 150 MPa, respectively, unaffected by the printing orientation. Additionally, minor variations in shrinkage and strength were attributed to the orientation‐independent phenomena. These findings indicate that the DIW‐printed alumina can be treated as an isotropic material, and the structural analysis of DIW‐printed alumina products should focus only on the defects resulting from the DIW process. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Applied Ceramic Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 185659784 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Dependence of the bending properties of alumina on the in‐plane printing orientation in direct ink writing. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kanno%2C+Teruyoshi%22">Kanno, Teruyoshi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> teruyoshi.kanno.r1@dc.tohoku.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Kurita%2C+Hiroki%22">Kurita, Hiroki</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> kurita@tohoku.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Narita%2C+Fumio%22">Narita, Fumio</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Applied+Ceramic+Technology%22">International Journal of Applied Ceramic Technology</searchLink>. Jul/Aug2025, Vol. 22 Issue 4, p1-9. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Flexural+modulus%22">Flexural modulus</searchLink><br /><searchLink fieldCode="DE" term="%22Specific+gravity%22">Specific gravity</searchLink><br /><searchLink fieldCode="DE" term="%22Bending+strength%22">Bending strength</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+oxide%22">Aluminum oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Fibers%22">Fibers</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The additive manufacturing (AM) of ceramic bodies often affords structural and mechanical anisotropies depending on the printing orientation and building direction. Thus, in this study, we investigated the influence of in‐plane printing orientation on the bending properties of alumina fabricated via direct ink writing (DIW), an AM technology. Additionally, the DIW fabrication and pretreatment of green bodies were conducted to eliminate the voids between filaments and surface irregularities to focus on individual filament orientation. Bar specimens were sintered at 1200°C to preserve the as‐printed microstructures, achieving relative densities of 77% irrespective of the printing orientation. Furthermore, the sintering shrinkage, bending modulus, and bending strength were 11%, 190 GPa, and 150 MPa, respectively, unaffected by the printing orientation. Additionally, minor variations in shrinkage and strength were attributed to the orientation‐independent phenomena. These findings indicate that the DIW‐printed alumina can be treated as an isotropic material, and the structural analysis of DIW‐printed alumina products should focus only on the defects resulting from the DIW process. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Applied Ceramic Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/ijac.15106 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 1 Subjects: – SubjectFull: Flexural modulus Type: general – SubjectFull: Specific gravity Type: general – SubjectFull: Bending strength Type: general – SubjectFull: Aluminum oxide Type: general – SubjectFull: Fibers Type: general Titles: – TitleFull: Dependence of the bending properties of alumina on the in‐plane printing orientation in direct ink writing. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kanno, Teruyoshi – PersonEntity: Name: NameFull: Kurita, Hiroki – PersonEntity: Name: NameFull: Narita, Fumio IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul/Aug2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 1546542X Numbering: – Type: volume Value: 22 – Type: issue Value: 4 Titles: – TitleFull: International Journal of Applied Ceramic Technology Type: main |
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