Thermal diffusivity and conductivity measurement of undoped La2O3 powder by homemade photoacoustic spectrometer.
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| Title: | Thermal diffusivity and conductivity measurement of undoped La |
|---|---|
| Authors: | Sarkar, Minarul I.1 (AUTHOR) minarul.ism@gmail.com, Kumar, Kaushal1 (AUTHOR) |
| Source: | Journal of Materials Science: Materials in Electronics. Sep2023, Vol. 34 Issue 25, p1-11. 11p. |
| Abstract: | Photoacoustic spectroscopy is a unique experimental technique for material characterization in any phase such as solid, liquid, gas, or condensed medium. The thermal properties like thermal diffusivity or thermal conductivity have been measured by recorded photoacoustic signals varying chopping frequency under 980 nm diode laser sources. In this work, the authors have fabricated homemade photoacoustic cell and a pre-amplifier device and optimized both for maximum sensitivity. The cavity volume is measured 4.80 × 10−6 m3 at optimum condition. Finally, the thermal diffusivity and thermal conductivity of undoped La2O3 oxide are measured. Thermal diffusivity has been found from 2.481 × 10‒6 to 2.530 × 10‒6 m2/s for the excitation power density range (63.69–87.57)×108 mW/m2. Conversely, the thermal conductivity has been measured from 5.067 to 5.168 Wm‒1k‒1 for the same excitation condition. Finally, the absorption spectrum of the sample is recorded by excited the sample with 500 Watt Xenon source varying wavelength. The absorption peaks are found near 967, 1310, and 1420 nm, respectively. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Materials Science: Materials in Electronics 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: 171891924 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Thermal diffusivity and conductivity measurement of undoped La<subscript>2</subscript>O<subscript>3</subscript> powder by homemade photoacoustic spectrometer. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Sarkar%2C+Minarul+I%2E%22">Sarkar, Minarul I.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> minarul.ism@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Kumar%2C+Kaushal%22">Kumar, Kaushal</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%3A+Materials+in+Electronics%22">Journal of Materials Science: Materials in Electronics</searchLink>. Sep2023, Vol. 34 Issue 25, p1-11. 11p. – Name: Abstract Label: Abstract Group: Ab Data: Photoacoustic spectroscopy is a unique experimental technique for material characterization in any phase such as solid, liquid, gas, or condensed medium. The thermal properties like thermal diffusivity or thermal conductivity have been measured by recorded photoacoustic signals varying chopping frequency under 980 nm diode laser sources. In this work, the authors have fabricated homemade photoacoustic cell and a pre-amplifier device and optimized both for maximum sensitivity. The cavity volume is measured 4.80 × 10−6 m3 at optimum condition. Finally, the thermal diffusivity and thermal conductivity of undoped La2O3 oxide are measured. Thermal diffusivity has been found from 2.481 × 10‒6 to 2.530 × 10‒6 m2/s for the excitation power density range (63.69–87.57)×108 mW/m2. Conversely, the thermal conductivity has been measured from 5.067 to 5.168 Wm‒1k‒1 for the same excitation condition. Finally, the absorption spectrum of the sample is recorded by excited the sample with 500 Watt Xenon source varying wavelength. The absorption peaks are found near 967, 1310, and 1420 nm, respectively. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Materials Science: Materials in Electronics 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/s10854-023-11146-7 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 1 Titles: – TitleFull: Thermal diffusivity and conductivity measurement of undoped La2O3 powder by homemade photoacoustic spectrometer. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Sarkar, Minarul I. – PersonEntity: Name: NameFull: Kumar, Kaushal IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 09574522 Numbering: – Type: volume Value: 34 – Type: issue Value: 25 Titles: – TitleFull: Journal of Materials Science: Materials in Electronics Type: main |
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