Suspension Spraying Tip: High Molecular Weight Solvent.
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| Title: | Suspension Spraying Tip: High Molecular Weight Solvent. |
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| Authors: | Cizek, J.1 (AUTHOR) cizek@ipp.cas.cz, Dukovsky, D.2 (AUTHOR), Musalek, R.1 (AUTHOR), Medricky, J.1 (AUTHOR), Tesar, T.1 (AUTHOR), Lukac, F.1 (AUTHOR), Chraska, T.1 (AUTHOR) |
| Source: | Journal of Thermal Spray Technology. Jun2021, Vol. 30 Issue 5, p1148-1158. 11p. |
| Subjects: | Molecular weights, Methoxyethanol, Plasma torch, Solvents, Propylene glycols, Methyl ether, Spraying, Surface coatings |
| Abstract: | In suspension spraying, two most frequently used solvents are water and ethanol. In this study, we test the potential of using alternative, high molecular weight solvent and demonstrate the associated advantages. For that, two organic solvents are directly compared: ethanol (serving as a benchmark, suspension formulated at 10 wt.% solid load) and di-propylene glycol methyl ether (two suspensions at 10 wt.% and 20 wt.% solid load). As a model material, Al 2 O 3 is selected, a frequently sprayed ceramics employed in many industrial sectors. Sub-micron 100% alpha-alumina powder is used to formulate the suspensions. Identical spray conditions are then used to deposit the coatings using hybrid water-stabilized plasma torch. Shadowgraphy monitoring of the suspension fragmentation as well as in situ measurement of the particle in-flight properties is employed, showing no significant differences between the three series. Further, it is shown that the ethanol- and ether-based-feedstock coatings are fully comparable in terms of their microstructure, porosity content, surface roughness as well as hardness and adhesion to the substrates. Importantly, the ether-based coatings exhibit slightly higher levels of α - Al 2 O 3 phase when compared to their ethanol-based counterpart (17 wt.% vs. 6 wt.%). The use of 20 wt.% solid load in the ether solvent leads to twofold increase in the deposition rate while (as opposed to ethanol) successfully retaining a dense microstructure. Lastly, the ether is significantly cheaper and safer to handle than ethanol. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Thermal Spray Technology is the property of Springer Nature 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 |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 151025267 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Suspension Spraying Tip: High Molecular Weight Solvent. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Cizek%2C+J%2E%22">Cizek, J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cizek@ipp.cas.cz</i><br /><searchLink fieldCode="AR" term="%22Dukovsky%2C+D%2E%22">Dukovsky, D.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Musalek%2C+R%2E%22">Musalek, R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Medricky%2C+J%2E%22">Medricky, J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tesar%2C+T%2E%22">Tesar, T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lukac%2C+F%2E%22">Lukac, F.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chraska%2C+T%2E%22">Chraska, T.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Thermal+Spray+Technology%22">Journal of Thermal Spray Technology</searchLink>. Jun2021, Vol. 30 Issue 5, p1148-1158. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Molecular+weights%22">Molecular weights</searchLink><br /><searchLink fieldCode="DE" term="%22Methoxyethanol%22">Methoxyethanol</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+torch%22">Plasma torch</searchLink><br /><searchLink fieldCode="DE" term="%22Solvents%22">Solvents</searchLink><br /><searchLink fieldCode="DE" term="%22Propylene+glycols%22">Propylene glycols</searchLink><br /><searchLink fieldCode="DE" term="%22Methyl+ether%22">Methyl ether</searchLink><br /><searchLink fieldCode="DE" term="%22Spraying%22">Spraying</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+coatings%22">Surface coatings</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In suspension spraying, two most frequently used solvents are water and ethanol. In this study, we test the potential of using alternative, high molecular weight solvent and demonstrate the associated advantages. For that, two organic solvents are directly compared: ethanol (serving as a benchmark, suspension formulated at 10 wt.% solid load) and di-propylene glycol methyl ether (two suspensions at 10 wt.% and 20 wt.% solid load). As a model material, Al 2 O 3 is selected, a frequently sprayed ceramics employed in many industrial sectors. Sub-micron 100% alpha-alumina powder is used to formulate the suspensions. Identical spray conditions are then used to deposit the coatings using hybrid water-stabilized plasma torch. Shadowgraphy monitoring of the suspension fragmentation as well as in situ measurement of the particle in-flight properties is employed, showing no significant differences between the three series. Further, it is shown that the ethanol- and ether-based-feedstock coatings are fully comparable in terms of their microstructure, porosity content, surface roughness as well as hardness and adhesion to the substrates. Importantly, the ether-based coatings exhibit slightly higher levels of α - Al 2 O 3 phase when compared to their ethanol-based counterpart (17 wt.% vs. 6 wt.%). The use of 20 wt.% solid load in the ether solvent leads to twofold increase in the deposition rate while (as opposed to ethanol) successfully retaining a dense microstructure. Lastly, the ether is significantly cheaper and safer to handle than ethanol. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Thermal Spray Technology is the property of Springer Nature 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: 10.1007/s11666-021-01192-0 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 1148 Subjects: – SubjectFull: Molecular weights Type: general – SubjectFull: Methoxyethanol Type: general – SubjectFull: Plasma torch Type: general – SubjectFull: Solvents Type: general – SubjectFull: Propylene glycols Type: general – SubjectFull: Methyl ether Type: general – SubjectFull: Spraying Type: general – SubjectFull: Surface coatings Type: general Titles: – TitleFull: Suspension Spraying Tip: High Molecular Weight Solvent. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Cizek, J. – PersonEntity: Name: NameFull: Dukovsky, D. – PersonEntity: Name: NameFull: Musalek, R. – PersonEntity: Name: NameFull: Medricky, J. – PersonEntity: Name: NameFull: Tesar, T. – PersonEntity: Name: NameFull: Lukac, F. – PersonEntity: Name: NameFull: Chraska, T. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 10599630 Numbering: – Type: volume Value: 30 – Type: issue Value: 5 Titles: – TitleFull: Journal of Thermal Spray Technology Type: main |
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