Formation mechanism of Sr2AlH7
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| Title: | Formation mechanism of Sr |
|---|---|
| Authors: | Zhang, Q.A.1, Enoki, H.1, Akiba, E. e.akiba@aist.go.jp |
| Source: | Journal of Alloys & Compounds. Jan2007, Vol. 427 Issue 1/2, p153-159. 7p. |
| Subjects: | Micromechanics, Stereology, Nonmetals, Hydrogen |
| Abstract: | Abstract: The mixtures of commercial SrH2 and Al powders were ball milled under hydrogen at a rotation speed of 150rpm for different time. The ball milled products could not be further hydrogenated to Sr2AlH7. In the case of ball milling of Sr2Al alloy under hydrogen at a rotation speed of 150rpm for 10h, however, the milled product consisting of SrH2 and Al can be easily hydrogenated to the Sr2AlH7 hydride at 533K for 2 days. SEM and TEM observations demonstrated that the Al particles in the ball milled 2SrH2 +Al mixtures were agglomerative and the average size of the Al particles was of the order of 100nm. In the ball milled Sr2Al alloy, however, the Al particles were dispersive and the average particle size was about 10nm. The different microstructures were considered to be the most important factor in affecting the kinetics of hydrogenation reaction, which is the reason for the distinct hydrogenation characteristics. [Copyright &y& Elsevier] |
| Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. 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 | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 23280387 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Formation mechanism of Sr<subscript>2</subscript>AlH<subscript>7</subscript> – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Q%2EA%2E%22">Zhang, Q.A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Enoki%2C+H%2E%22">Enoki, H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Akiba%2C+E%2E%22">Akiba, E.</searchLink><i> e.akiba@aist.go.jp</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Jan2007, Vol. 427 Issue 1/2, p153-159. 7p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Micromechanics%22">Micromechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Stereology%22">Stereology</searchLink><br /><searchLink fieldCode="DE" term="%22Nonmetals%22">Nonmetals</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen%22">Hydrogen</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The mixtures of commercial SrH2 and Al powders were ball milled under hydrogen at a rotation speed of 150rpm for different time. The ball milled products could not be further hydrogenated to Sr2AlH7. In the case of ball milling of Sr2Al alloy under hydrogen at a rotation speed of 150rpm for 10h, however, the milled product consisting of SrH2 and Al can be easily hydrogenated to the Sr2AlH7 hydride at 533K for 2 days. SEM and TEM observations demonstrated that the Al particles in the ball milled 2SrH2 +Al mixtures were agglomerative and the average size of the Al particles was of the order of 100nm. In the ball milled Sr2Al alloy, however, the Al particles were dispersive and the average particle size was about 10nm. The different microstructures were considered to be the most important factor in affecting the kinetics of hydrogenation reaction, which is the reason for the distinct hydrogenation characteristics. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. 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: 10.1016/j.jallcom.2006.03.022 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 153 Subjects: – SubjectFull: Micromechanics Type: general – SubjectFull: Stereology Type: general – SubjectFull: Nonmetals Type: general – SubjectFull: Hydrogen Type: general Titles: – TitleFull: Formation mechanism of Sr2AlH7 Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhang, Q.A. – PersonEntity: Name: NameFull: Enoki, H. – PersonEntity: Name: NameFull: Akiba, E. IsPartOfRelationships: – BibEntity: Dates: – D: 16 M: 01 Text: Jan2007 Type: published Y: 2007 Identifiers: – Type: issn-print Value: 09258388 Numbering: – Type: volume Value: 427 – Type: issue Value: 1/2 Titles: – TitleFull: Journal of Alloys & Compounds Type: main |
| ResultId | 1 |
