Photopyroelectric measurement of thermal diffusivity of solids based on the theory of thermal wave interferometry
A standard photopyroelectric configuration was used for the measurement of thermal diffusvity of solids by considering the phenomena of thermal wave interference. The thermal wave generated within the samples will be partially reflected and transmitted upon striking at the medium boundaries. The ef...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Malaysian Solid State Science and Technology Society
2003
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| Online Access: | http://psasir.upm.edu.my/id/eprint/42199/ http://psasir.upm.edu.my/id/eprint/42199/1/Photopyroelectric%20measurement%20of%20thermal%20diffusivity%20of%20solids%20based%20on%20the%20theory%20of%20thermal%20wave%20interferometry.pdf |
| _version_ | 1848849900432785408 |
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| author | Zakaria, Azmi Liaw, H. S. Mat Yunus, Wan Mahmood Hashim, Mansor Abd. Moksin, Mohd Maarof Wan Yusoff, Wan Mohamad Daud |
| author_facet | Zakaria, Azmi Liaw, H. S. Mat Yunus, Wan Mahmood Hashim, Mansor Abd. Moksin, Mohd Maarof Wan Yusoff, Wan Mohamad Daud |
| author_sort | Zakaria, Azmi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A standard photopyroelectric configuration was used for the measurement of thermal diffusvity of solids by considering the phenomena of thermal wave interference. The thermal wave generated within the samples will be partially reflected and transmitted upon striking at the medium boundaries. The effect of infinite multiple reflection of the thermal wave within the samples was extensively discussed by Bennett and Patty in the generation of photoacoustic signal. In this work where sample surface heating was assumed and a thermally thick condition was applied, only one thermal wave reflection back into sample was considered, that is by the top pyroelectric coating, but with a series of transmitted wave into pyroelectric film from the upper and the lower pyroelectric-coating interface in the generation of photopyroelectric signal. A normalisation procedure was used to eliminate the number of unnecessary parameters needed to be known before one can determine the thermal diffusivity of the sample. With the appropriate sample-pyroelectric detector dimension, the thermal diffusivity of any solid sample is readily being determined. The method was experimentally tested for aluminum, copper, and nickel, and the values obtained were close to the literature values. |
| first_indexed | 2025-11-15T09:57:44Z |
| format | Article |
| id | upm-42199 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:57:44Z |
| publishDate | 2003 |
| publisher | Malaysian Solid State Science and Technology Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-421992016-09-23T08:16:38Z http://psasir.upm.edu.my/id/eprint/42199/ Photopyroelectric measurement of thermal diffusivity of solids based on the theory of thermal wave interferometry Zakaria, Azmi Liaw, H. S. Mat Yunus, Wan Mahmood Hashim, Mansor Abd. Moksin, Mohd Maarof Wan Yusoff, Wan Mohamad Daud A standard photopyroelectric configuration was used for the measurement of thermal diffusvity of solids by considering the phenomena of thermal wave interference. The thermal wave generated within the samples will be partially reflected and transmitted upon striking at the medium boundaries. The effect of infinite multiple reflection of the thermal wave within the samples was extensively discussed by Bennett and Patty in the generation of photoacoustic signal. In this work where sample surface heating was assumed and a thermally thick condition was applied, only one thermal wave reflection back into sample was considered, that is by the top pyroelectric coating, but with a series of transmitted wave into pyroelectric film from the upper and the lower pyroelectric-coating interface in the generation of photopyroelectric signal. A normalisation procedure was used to eliminate the number of unnecessary parameters needed to be known before one can determine the thermal diffusivity of the sample. With the appropriate sample-pyroelectric detector dimension, the thermal diffusivity of any solid sample is readily being determined. The method was experimentally tested for aluminum, copper, and nickel, and the values obtained were close to the literature values. Malaysian Solid State Science and Technology Society 2003 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/42199/1/Photopyroelectric%20measurement%20of%20thermal%20diffusivity%20of%20solids%20based%20on%20the%20theory%20of%20thermal%20wave%20interferometry.pdf Zakaria, Azmi and Liaw, H. S. and Mat Yunus, Wan Mahmood and Hashim, Mansor and Abd. Moksin, Mohd Maarof and Wan Yusoff, Wan Mohamad Daud (2003) Photopyroelectric measurement of thermal diffusivity of solids based on the theory of thermal wave interferometry. Solid State Science and Technology, 11 (1). pp. 66-72. ISSN 0128-7389 http://masshp.net/journal/all%20journal/VOLUME%2011%20NO.%201,%202003/htm/Vol.%2011,%20No%201%20%282003%29%2066-72.htm |
| spellingShingle | Zakaria, Azmi Liaw, H. S. Mat Yunus, Wan Mahmood Hashim, Mansor Abd. Moksin, Mohd Maarof Wan Yusoff, Wan Mohamad Daud Photopyroelectric measurement of thermal diffusivity of solids based on the theory of thermal wave interferometry |
| title | Photopyroelectric measurement of thermal diffusivity of solids based on the theory of thermal wave interferometry |
| title_full | Photopyroelectric measurement of thermal diffusivity of solids based on the theory of thermal wave interferometry |
| title_fullStr | Photopyroelectric measurement of thermal diffusivity of solids based on the theory of thermal wave interferometry |
| title_full_unstemmed | Photopyroelectric measurement of thermal diffusivity of solids based on the theory of thermal wave interferometry |
| title_short | Photopyroelectric measurement of thermal diffusivity of solids based on the theory of thermal wave interferometry |
| title_sort | photopyroelectric measurement of thermal diffusivity of solids based on the theory of thermal wave interferometry |
| url | http://psasir.upm.edu.my/id/eprint/42199/ http://psasir.upm.edu.my/id/eprint/42199/ http://psasir.upm.edu.my/id/eprint/42199/1/Photopyroelectric%20measurement%20of%20thermal%20diffusivity%20of%20solids%20based%20on%20the%20theory%20of%20thermal%20wave%20interferometry.pdf |