Layered Composite Hydrogenated Films of Zirconium and Niobium: Production Method and Testing Using Thermo EMF (Thermoelectric Method).
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| Title: | Layered Composite Hydrogenated Films of Zirconium and Niobium: Production Method and Testing Using Thermo EMF (Thermoelectric Method). |
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| Authors: | Larionov, V. V.1 (AUTHOR) lvv@tpu.ru, Laptev, R. S.1 (AUTHOR) laptevrs@tpu.ru, Lider, A. M.1 (AUTHOR) lider@tpu.ru |
| Source: | Russian Journal of Nondestructive Testing. Aug2024, Vol. 60 Issue 8, p879-887. 9p. |
| Subjects: | Electrostatic accelerators, Hydrogen atom, Magnetron sputtering, Zirconium, Production methods, Substrates (Materials science) |
| Abstract: | Layered materials incorporating hydrogen were obtained using Nb/Zr films with varying numbers of layers from 50 to 100. The films were deposited on a silicon substrate using a vacuum magnetron sputtering method on a dedicated setup. The film thickness varied from 10 to 50 nm. The resulting material was hydrogenated with protons on a TPU electrostatic generator with an energy of up to 1.2 MeV. The deposition modes for nanoscale metallic multilayer Zr/Nb systems were determined: for a Zr target the specific power of the sputtering system was 37.9 W/cm2, and for a Nb target it was 26.4 W/cm2. A coating with clear boundaries between individual layers of zirconium and niobium was obtained. It was shown that the optimal conditions for studying nanoscale Zr/Nb layers are a pressure of 700 Pa, a power of 40 W, a frequency of 2 kHz, and a plasma filling factor of 12.5% for coatings with individual layer thicknesses of 100 nm. For coatings with layer thicknesses from 10 to 50 nm, the optimal conditions are a pressure of 650 Pa, a power of 40 W, and a frequency of 1 kHz. The thermo EMF method (GOST (State Standard) 25315–82) was used for testing. It was found out that after proton irradiation, an intensive accumulation of hydrogen atoms occurs near the interfaces; it reduces the structure defectiveness and entails a change in the thermo EMF up to the inversion of its sign. The hydrogen distribution is predominantly bimodal, with local maxima in hydrogen concentration observed at the Nb/Zr interfaces, while accumulation at the Zr/Nb interface is considerably lower. Hydrogen localization near interfaces primarily occurs around zirconium. [ABSTRACT FROM AUTHOR] |
| Copyright of Russian Journal of Nondestructive Testing 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.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 180970708 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Layered Composite Hydrogenated Films of Zirconium and Niobium: Production Method and Testing Using Thermo EMF (Thermoelectric Method). – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Larionov%2C+V%2E+V%2E%22">Larionov, V. V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lvv@tpu.ru</i><br /><searchLink fieldCode="AR" term="%22Laptev%2C+R%2E+S%2E%22">Laptev, R. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> laptevrs@tpu.ru</i><br /><searchLink fieldCode="AR" term="%22Lider%2C+A%2E+M%2E%22">Lider, A. M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lider@tpu.ru</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Russian+Journal+of+Nondestructive+Testing%22">Russian Journal of Nondestructive Testing</searchLink>. Aug2024, Vol. 60 Issue 8, p879-887. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Electrostatic+accelerators%22">Electrostatic accelerators</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+atom%22">Hydrogen atom</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetron+sputtering%22">Magnetron sputtering</searchLink><br /><searchLink fieldCode="DE" term="%22Zirconium%22">Zirconium</searchLink><br /><searchLink fieldCode="DE" term="%22Production+methods%22">Production methods</searchLink><br /><searchLink fieldCode="DE" term="%22Substrates+%28Materials+science%29%22">Substrates (Materials science)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Layered materials incorporating hydrogen were obtained using Nb/Zr films with varying numbers of layers from 50 to 100. The films were deposited on a silicon substrate using a vacuum magnetron sputtering method on a dedicated setup. The film thickness varied from 10 to 50 nm. The resulting material was hydrogenated with protons on a TPU electrostatic generator with an energy of up to 1.2 MeV. The deposition modes for nanoscale metallic multilayer Zr/Nb systems were determined: for a Zr target the specific power of the sputtering system was 37.9 W/cm2, and for a Nb target it was 26.4 W/cm2. A coating with clear boundaries between individual layers of zirconium and niobium was obtained. It was shown that the optimal conditions for studying nanoscale Zr/Nb layers are a pressure of 700 Pa, a power of 40 W, a frequency of 2 kHz, and a plasma filling factor of 12.5% for coatings with individual layer thicknesses of 100 nm. For coatings with layer thicknesses from 10 to 50 nm, the optimal conditions are a pressure of 650 Pa, a power of 40 W, and a frequency of 1 kHz. The thermo EMF method (GOST (State Standard) 25315–82) was used for testing. It was found out that after proton irradiation, an intensive accumulation of hydrogen atoms occurs near the interfaces; it reduces the structure defectiveness and entails a change in the thermo EMF up to the inversion of its sign. The hydrogen distribution is predominantly bimodal, with local maxima in hydrogen concentration observed at the Nb/Zr interfaces, while accumulation at the Zr/Nb interface is considerably lower. Hydrogen localization near interfaces primarily occurs around zirconium. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Russian Journal of Nondestructive Testing 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: 10.1134/S106183092470075X Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 879 Subjects: – SubjectFull: Electrostatic accelerators Type: general – SubjectFull: Hydrogen atom Type: general – SubjectFull: Magnetron sputtering Type: general – SubjectFull: Zirconium Type: general – SubjectFull: Production methods Type: general – SubjectFull: Substrates (Materials science) Type: general Titles: – TitleFull: Layered Composite Hydrogenated Films of Zirconium and Niobium: Production Method and Testing Using Thermo EMF (Thermoelectric Method). Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Larionov, V. V. – PersonEntity: Name: NameFull: Laptev, R. S. – PersonEntity: Name: NameFull: Lider, A. M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 10618309 Numbering: – Type: volume Value: 60 – Type: issue Value: 8 Titles: – TitleFull: Russian Journal of Nondestructive Testing Type: main |
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