Determining the oxidation behavior of metal powders during heating through thermogravimetric and evolved gas analysis using a coupled thermogravimetry-gas chromatography-mass spectrometry technique.
Saved in:
| Title: | Determining the oxidation behavior of metal powders during heating through thermogravimetric and evolved gas analysis using a coupled thermogravimetry-gas chromatography-mass spectrometry technique. |
|---|---|
| Authors: | Whitman, Catherine A.1 cathywhitman@dal.ca, O’Flynn, Julian T.1, Rayner, Addison J.1, Corbin, Stephen F.1 |
| Source: | Thermochimica Acta. Aug2016, Vol. 638, p124-137. 14p. |
| Subjects: | Metal powders, Oxidation, Thermogravimetry, Gas analysis, Gas chromatography/Mass spectrometry (GC-MS) |
| Abstract: | The oxidation behavior of a fine Ni superalloy (NiSA) powder, Inconel 625, within an alumina support powder during heating has been determined using combined thermogravimetry (TG) and evolved gas analysis (EGA). A gas chromatographic-mass spectrometer (GCMS) was used for EGA. The GCMS was able to semi-quantitatively measure the rate at which air was removed from the furnace due to a He purge, where no pre-evacuation was used. It also was able to measure the effectiveness of a three cycle evacuation and He purge in reducing the oxygen content in the furnace and identify an important alumina off-gassing process that exposed the NiSA powder to H 2 O and CO 2 . The parallel use of the TG signal was able to quantitatively determine the relationship between NiSA oxidation and relative concentrations of the oxidizing gases created by the differing furnace pre-conditions and the alumina powder off-gassing process. It was concluded that the developed TG-GCMS method can be widely applied to quantitatively study oxygen pick-up in metal powders under industrially relevant processing conditions. [ABSTRACT FROM AUTHOR] |
| Copyright of Thermochimica Acta 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 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 118152344 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Determining the oxidation behavior of metal powders during heating through thermogravimetric and evolved gas analysis using a coupled thermogravimetry-gas chromatography-mass spectrometry technique. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Whitman%2C+Catherine+A%2E%22">Whitman, Catherine A.</searchLink><relatesTo>1</relatesTo><i> cathywhitman@dal.ca</i><br /><searchLink fieldCode="AR" term="%22O’Flynn%2C+Julian+T%2E%22">O’Flynn, Julian T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rayner%2C+Addison+J%2E%22">Rayner, Addison J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Corbin%2C+Stephen+F%2E%22">Corbin, Stephen F.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Thermochimica+Acta%22">Thermochimica Acta</searchLink>. Aug2016, Vol. 638, p124-137. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Metal+powders%22">Metal powders</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Thermogravimetry%22">Thermogravimetry</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+analysis%22">Gas analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+chromatography%2FMass+spectrometry+%28GC-MS%29%22">Gas chromatography/Mass spectrometry (GC-MS)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The oxidation behavior of a fine Ni superalloy (NiSA) powder, Inconel 625, within an alumina support powder during heating has been determined using combined thermogravimetry (TG) and evolved gas analysis (EGA). A gas chromatographic-mass spectrometer (GCMS) was used for EGA. The GCMS was able to semi-quantitatively measure the rate at which air was removed from the furnace due to a He purge, where no pre-evacuation was used. It also was able to measure the effectiveness of a three cycle evacuation and He purge in reducing the oxygen content in the furnace and identify an important alumina off-gassing process that exposed the NiSA powder to H 2 O and CO 2 . The parallel use of the TG signal was able to quantitatively determine the relationship between NiSA oxidation and relative concentrations of the oxidizing gases created by the differing furnace pre-conditions and the alumina powder off-gassing process. It was concluded that the developed TG-GCMS method can be widely applied to quantitatively study oxygen pick-up in metal powders under industrially relevant processing conditions. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Thermochimica Acta 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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=118152344 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.tca.2016.06.019 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 124 Subjects: – SubjectFull: Metal powders Type: general – SubjectFull: Oxidation Type: general – SubjectFull: Thermogravimetry Type: general – SubjectFull: Gas analysis Type: general – SubjectFull: Gas chromatography/Mass spectrometry (GC-MS) Type: general Titles: – TitleFull: Determining the oxidation behavior of metal powders during heating through thermogravimetric and evolved gas analysis using a coupled thermogravimetry-gas chromatography-mass spectrometry technique. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Whitman, Catherine A. – PersonEntity: Name: NameFull: O’Flynn, Julian T. – PersonEntity: Name: NameFull: Rayner, Addison J. – PersonEntity: Name: NameFull: Corbin, Stephen F. IsPartOfRelationships: – BibEntity: Dates: – D: 20 M: 08 Text: Aug2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 00406031 Numbering: – Type: volume Value: 638 Titles: – TitleFull: Thermochimica Acta Type: main |
| ResultId | 1 |
