Application of the pyroelectric sensor for study of porosity effect on thermal diffusivity of nickel copper zink ferrite
An investigation was carried out to study the effect of the porosity on thermal diffusivity of Nickel Copper Zinc Ferrite. The experimental technique employed to measure thermal diffusivity was the photoflash technique, and the measurements were carried out at room temperature. The heating source co...
| Principais autores: | , , , , |
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| Formato: | Conference or Workshop Item |
| Idioma: | English |
| Publicado em: |
IEEE
2003
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| Acesso em linha: | http://psasir.upm.edu.my/id/eprint/48308/1/Application%20of%20the%20pyroelectric%20sensor%20for%20study%20of%20porosity%20effect%20on%20thermal%20diffusivity%20of%20nickel%20copper%20zink%20ferrite.pdf |
| _version_ | 1825929978866302976 |
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| author | Grozescu, Ionel Valeriu Abd. Moksin, Mohd Maarof Haydari, Mehdi Yahaya, N. Mat Yunus, Wan Mahmood |
| author_facet | Grozescu, Ionel Valeriu Abd. Moksin, Mohd Maarof Haydari, Mehdi Yahaya, N. Mat Yunus, Wan Mahmood |
| author_sort | Grozescu, Ionel Valeriu |
| collection | UPM |
| description | An investigation was carried out to study the effect of the porosity on thermal diffusivity of Nickel Copper Zinc Ferrite. The experimental technique employed to measure thermal diffusivity was the photoflash technique, and the measurements were carried out at room temperature. The heating source consists of camera flash having approximately 5ms pulse duration and a thin film of polyvinylidene difluoride (PVDF) attached to the back of the samples was used as detector. Six different porosity levels were obtained by varying the grinding time following the presintering process and preceding the sintering process at 1350°C. The porosity range obtained for the Ni0.3Cu0.1Zn0.6Fe2O4 samples was 1.8-7%. The thermal diffusivity was determined from the experimental thermal transient signal. For the fitting of the experimental results, the analytical model used was based on the approximation that the pulse duration of the camera flash can be considered as Dirac-δ function. Thermal diffusivity values for Ni0.3Cu0.1Zn0.6Fe2O4 samples were in the range (7.8-8.7) × 10-7 m2/s. |
| first_indexed | 2024-03-06T09:04:39Z |
| format | Conference or Workshop Item |
| id | upm.eprints-48308 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:04:39Z |
| publishDate | 2003 |
| publisher | IEEE |
| record_format | dspace |
| spelling | upm.eprints-483082016-09-22T08:43:11Z http://psasir.upm.edu.my/id/eprint/48308/ Application of the pyroelectric sensor for study of porosity effect on thermal diffusivity of nickel copper zink ferrite Grozescu, Ionel Valeriu Abd. Moksin, Mohd Maarof Haydari, Mehdi Yahaya, N. Mat Yunus, Wan Mahmood An investigation was carried out to study the effect of the porosity on thermal diffusivity of Nickel Copper Zinc Ferrite. The experimental technique employed to measure thermal diffusivity was the photoflash technique, and the measurements were carried out at room temperature. The heating source consists of camera flash having approximately 5ms pulse duration and a thin film of polyvinylidene difluoride (PVDF) attached to the back of the samples was used as detector. Six different porosity levels were obtained by varying the grinding time following the presintering process and preceding the sintering process at 1350°C. The porosity range obtained for the Ni0.3Cu0.1Zn0.6Fe2O4 samples was 1.8-7%. The thermal diffusivity was determined from the experimental thermal transient signal. For the fitting of the experimental results, the analytical model used was based on the approximation that the pulse duration of the camera flash can be considered as Dirac-δ function. Thermal diffusivity values for Ni0.3Cu0.1Zn0.6Fe2O4 samples were in the range (7.8-8.7) × 10-7 m2/s. IEEE 2003 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/48308/1/Application%20of%20the%20pyroelectric%20sensor%20for%20study%20of%20porosity%20effect%20on%20thermal%20diffusivity%20of%20nickel%20copper%20zink%20ferrite.pdf Grozescu, Ionel Valeriu and Abd. Moksin, Mohd Maarof and Haydari, Mehdi and Yahaya, N. and Mat Yunus, Wan Mahmood (2003) Application of the pyroelectric sensor for study of porosity effect on thermal diffusivity of nickel copper zink ferrite. In: 2003 Asian Conference on Sensors (AsiaSENSE 2003), Malaysia. (pp. 65-68). 10.1109/ASENSE.2003.1224994 |
| spellingShingle | Grozescu, Ionel Valeriu Abd. Moksin, Mohd Maarof Haydari, Mehdi Yahaya, N. Mat Yunus, Wan Mahmood Application of the pyroelectric sensor for study of porosity effect on thermal diffusivity of nickel copper zink ferrite |
| title | Application of the pyroelectric sensor for study of porosity effect on thermal diffusivity of nickel copper zink ferrite |
| title_full | Application of the pyroelectric sensor for study of porosity effect on thermal diffusivity of nickel copper zink ferrite |
| title_fullStr | Application of the pyroelectric sensor for study of porosity effect on thermal diffusivity of nickel copper zink ferrite |
| title_full_unstemmed | Application of the pyroelectric sensor for study of porosity effect on thermal diffusivity of nickel copper zink ferrite |
| title_short | Application of the pyroelectric sensor for study of porosity effect on thermal diffusivity of nickel copper zink ferrite |
| title_sort | application of the pyroelectric sensor for study of porosity effect on thermal diffusivity of nickel copper zink ferrite |
| url | http://psasir.upm.edu.my/id/eprint/48308/1/Application%20of%20the%20pyroelectric%20sensor%20for%20study%20of%20porosity%20effect%20on%20thermal%20diffusivity%20of%20nickel%20copper%20zink%20ferrite.pdf |
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