Oxidation and nitridation of vitreous carbon at high temperatures.
Saved in:
| Title: | Oxidation and nitridation of vitreous carbon at high temperatures. |
|---|---|
| Authors: | Murray, Vanessa J.1 (AUTHOR), Recio, Pedro2 (AUTHOR), Caracciolo, Adriana2 (AUTHOR), Miossec, Chloe2 (AUTHOR), Balucani, Nadia2 (AUTHOR), Casavecchia, Piergiorgio2 (AUTHOR), Minton, Timothy K.1 (AUTHOR) tminton@montana.edu |
| Source: | Carbon. Oct2020, Vol. 167, p388-402. 15p. |
| Subjects: | Nitridation, High temperatures, Ablation (Aerothermodynamics), Surface temperature, Mass spectrometers |
| Abstract: | Molecular beam-surface scattering experiments were used to obtain fundamental data on gas-surface interactions that are central to the ablation of carbon during hypersonic flight through air. Continuous beams containing O or N atoms with incident velocities of ∼2000 m s−1 were directed at a vitreous carbon surface at temperatures in the range, 800–1873 K, and the products that desorbed from the surface were detected with a rotatable mass spectrometer detector as a function of their velocity and scattering angle. All products exhibited the dynamical characteristics of thermal desorption. The efficiencies of the gas-surface interactions, both reactive and non-reactive, were quantified as a function of surface temperature. In addition to reacting with carbon to produce CO 2 (minor product) and CO (major product), oxygen atoms may recombine on the surface to produce O 2 with an efficiency that is somewhat lower than that to produce CO. Nitrogen atoms may recombine on the surface to produce N 2 or react to produce CN. The recombination efficiency of N atoms is generally more than an order of magnitude higher than the reaction efficiency to produce CN. The quantitative reaction efficiencies reported here are useful for the development of air-carbon models for hypersonic ablation. Image 1 [ABSTRACT FROM AUTHOR] |
| Copyright of Carbon 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: 145443644 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Oxidation and nitridation of vitreous carbon at high temperatures. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Murray%2C+Vanessa+J%2E%22">Murray, Vanessa J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Recio%2C+Pedro%22">Recio, Pedro</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Caracciolo%2C+Adriana%22">Caracciolo, Adriana</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Miossec%2C+Chloe%22">Miossec, Chloe</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Balucani%2C+Nadia%22">Balucani, Nadia</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Casavecchia%2C+Piergiorgio%22">Casavecchia, Piergiorgio</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Minton%2C+Timothy+K%2E%22">Minton, Timothy K.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> tminton@montana.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Carbon%22">Carbon</searchLink>. Oct2020, Vol. 167, p388-402. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Nitridation%22">Nitridation</searchLink><br /><searchLink fieldCode="DE" term="%22High+temperatures%22">High temperatures</searchLink><br /><searchLink fieldCode="DE" term="%22Ablation+%28Aerothermodynamics%29%22">Ablation (Aerothermodynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+temperature%22">Surface temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+spectrometers%22">Mass spectrometers</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Molecular beam-surface scattering experiments were used to obtain fundamental data on gas-surface interactions that are central to the ablation of carbon during hypersonic flight through air. Continuous beams containing O or N atoms with incident velocities of ∼2000 m s−1 were directed at a vitreous carbon surface at temperatures in the range, 800–1873 K, and the products that desorbed from the surface were detected with a rotatable mass spectrometer detector as a function of their velocity and scattering angle. All products exhibited the dynamical characteristics of thermal desorption. The efficiencies of the gas-surface interactions, both reactive and non-reactive, were quantified as a function of surface temperature. In addition to reacting with carbon to produce CO 2 (minor product) and CO (major product), oxygen atoms may recombine on the surface to produce O 2 with an efficiency that is somewhat lower than that to produce CO. Nitrogen atoms may recombine on the surface to produce N 2 or react to produce CN. The recombination efficiency of N atoms is generally more than an order of magnitude higher than the reaction efficiency to produce CN. The quantitative reaction efficiencies reported here are useful for the development of air-carbon models for hypersonic ablation. Image 1 [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Carbon 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=145443644 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.carbon.2020.05.076 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 388 Subjects: – SubjectFull: Nitridation Type: general – SubjectFull: High temperatures Type: general – SubjectFull: Ablation (Aerothermodynamics) Type: general – SubjectFull: Surface temperature Type: general – SubjectFull: Mass spectrometers Type: general Titles: – TitleFull: Oxidation and nitridation of vitreous carbon at high temperatures. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Murray, Vanessa J. – PersonEntity: Name: NameFull: Recio, Pedro – PersonEntity: Name: NameFull: Caracciolo, Adriana – PersonEntity: Name: NameFull: Miossec, Chloe – PersonEntity: Name: NameFull: Balucani, Nadia – PersonEntity: Name: NameFull: Casavecchia, Piergiorgio – PersonEntity: Name: NameFull: Minton, Timothy K. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 10 Text: Oct2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 00086223 Numbering: – Type: volume Value: 167 Titles: – TitleFull: Carbon Type: main |
| ResultId | 1 |
