Non-contact, non-destructive mapping of thermal diffusivity and surface acoustic wave speed using transient grating spectroscopy
We present new developments of the laser-induced transient grating spectroscopy (TGS) technique that enable the measurement of large area 2D maps of thermal diffusivity and surface acoustic wave speed. Additional capabilities include targeted measurements and the ability to accommodate samples with...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing
2021
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| Online Access: | https://hdl.handle.net/1721.1/133214 |
| _version_ | 1826192052671479808 |
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| author | Reza, Abdallah Dennett, Cody A Short, Michael P Waite, John Zayachuk, Yevhen Magazzeni, Christopher M Hills, Simon Hofmann, Felix |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Reza, Abdallah Dennett, Cody A Short, Michael P Waite, John Zayachuk, Yevhen Magazzeni, Christopher M Hills, Simon Hofmann, Felix |
| author_sort | Reza, Abdallah |
| collection | MIT |
| description | We present new developments of the laser-induced transient grating spectroscopy (TGS) technique that enable the measurement of large area 2D maps of thermal diffusivity and surface acoustic wave speed. Additional capabilities include targeted measurements and the ability to accommodate samples with increased surface roughness. These new capabilities are demonstrated by recording large TGS maps of deuterium implanted tungsten, linear friction welded aerospace alloys, and high entropy alloys with a range of grain sizes. The results illustrate the ability to view the grain microstructure in elastically anisotropic samples and to detect anomalies in samples, for example, due to irradiation and previous measurements. They also point to the possibility of using TGS to quantify grain size at the surface of polycrystalline materials. |
| first_indexed | 2024-09-23T09:05:34Z |
| format | Article |
| id | mit-1721.1/133214 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:05:34Z |
| publishDate | 2021 |
| publisher | AIP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1332142023-02-22T20:21:31Z Non-contact, non-destructive mapping of thermal diffusivity and surface acoustic wave speed using transient grating spectroscopy Reza, Abdallah Dennett, Cody A Short, Michael P Waite, John Zayachuk, Yevhen Magazzeni, Christopher M Hills, Simon Hofmann, Felix Massachusetts Institute of Technology. Department of Nuclear Science and Engineering We present new developments of the laser-induced transient grating spectroscopy (TGS) technique that enable the measurement of large area 2D maps of thermal diffusivity and surface acoustic wave speed. Additional capabilities include targeted measurements and the ability to accommodate samples with increased surface roughness. These new capabilities are demonstrated by recording large TGS maps of deuterium implanted tungsten, linear friction welded aerospace alloys, and high entropy alloys with a range of grain sizes. The results illustrate the ability to view the grain microstructure in elastically anisotropic samples and to detect anomalies in samples, for example, due to irradiation and previous measurements. They also point to the possibility of using TGS to quantify grain size at the surface of polycrystalline materials. 2021-10-27T19:51:31Z 2021-10-27T19:51:31Z 2020 2021-08-12T12:28:42Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133214 en 10.1063/5.0003742 Review of Scientific Instruments Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf AIP Publishing Other repository |
| spellingShingle | Reza, Abdallah Dennett, Cody A Short, Michael P Waite, John Zayachuk, Yevhen Magazzeni, Christopher M Hills, Simon Hofmann, Felix Non-contact, non-destructive mapping of thermal diffusivity and surface acoustic wave speed using transient grating spectroscopy |
| title | Non-contact, non-destructive mapping of thermal diffusivity and surface acoustic wave speed using transient grating spectroscopy |
| title_full | Non-contact, non-destructive mapping of thermal diffusivity and surface acoustic wave speed using transient grating spectroscopy |
| title_fullStr | Non-contact, non-destructive mapping of thermal diffusivity and surface acoustic wave speed using transient grating spectroscopy |
| title_full_unstemmed | Non-contact, non-destructive mapping of thermal diffusivity and surface acoustic wave speed using transient grating spectroscopy |
| title_short | Non-contact, non-destructive mapping of thermal diffusivity and surface acoustic wave speed using transient grating spectroscopy |
| title_sort | non contact non destructive mapping of thermal diffusivity and surface acoustic wave speed using transient grating spectroscopy |
| url | https://hdl.handle.net/1721.1/133214 |
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