Evaluation of the sintering properties of pottery bodies using terahertz time-domain spectroscopy
Terahertz (THz) time-domain spectroscopy was applied to evaluate the sintering properties of pottery bodies. The transmittance, absorption coefficient, and refractive index of pottery bodies fired at various temperatures were evaluated over the THz frequency range of 0.3–1.3 THz, and the relationshi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-01-01
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| Series: | Journal of Asian Ceramic Societies |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/21870764.2018.1439610 |
| _version_ | 1818722872973066240 |
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| author | Seiji Niijima Masashi Shoyama Kazumi Murakami Kodo Kawase |
| author_facet | Seiji Niijima Masashi Shoyama Kazumi Murakami Kodo Kawase |
| author_sort | Seiji Niijima |
| collection | DOAJ |
| description | Terahertz (THz) time-domain spectroscopy was applied to evaluate the sintering properties of pottery bodies. The transmittance, absorption coefficient, and refractive index of pottery bodies fired at various temperatures were evaluated over the THz frequency range of 0.3–1.3 THz, and the relationships between these properties and their sintering properties were examined. The absorption coefficient and refractive index at 0.5 THz were sensitive under sintering conditions. In particular, the sintering-temperature dependence of the refractive index in the THz region showed a similar trend to that shown by the bulk density. THz-wave two-dimensional imaging was used to visualize inhomogeneities inside the bodies. Our study demonstrated that THz-wave analysis can be used to manage the firing process of pottery and ceramics and to conduct nondestructive testing of products. |
| first_indexed | 2024-12-17T21:01:32Z |
| format | Article |
| id | doaj.art-84bb19d5d57d4b8aba7d43ff26757e9f |
| institution | Directory Open Access Journal |
| issn | 2187-0764 |
| language | English |
| last_indexed | 2024-12-17T21:01:32Z |
| publishDate | 2018-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Ceramic Societies |
| spelling | doaj.art-84bb19d5d57d4b8aba7d43ff26757e9f2022-12-21T21:32:43ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642018-01-0161374210.1080/21870764.2018.14396101439610Evaluation of the sintering properties of pottery bodies using terahertz time-domain spectroscopySeiji Niijima0Masashi Shoyama1Kazumi Murakami2Kodo Kawase3Mie Prefecture Industrial Research InstituteMie Prefecture Industrial Research InstituteMie Prefecture Industrial Research InstituteNagoya UniversityTerahertz (THz) time-domain spectroscopy was applied to evaluate the sintering properties of pottery bodies. The transmittance, absorption coefficient, and refractive index of pottery bodies fired at various temperatures were evaluated over the THz frequency range of 0.3–1.3 THz, and the relationships between these properties and their sintering properties were examined. The absorption coefficient and refractive index at 0.5 THz were sensitive under sintering conditions. In particular, the sintering-temperature dependence of the refractive index in the THz region showed a similar trend to that shown by the bulk density. THz-wave two-dimensional imaging was used to visualize inhomogeneities inside the bodies. Our study demonstrated that THz-wave analysis can be used to manage the firing process of pottery and ceramics and to conduct nondestructive testing of products.http://dx.doi.org/10.1080/21870764.2018.1439610Terahertz time-domain spectroscopypotteryabsorption coefficientrefractive indexwater absorption ratebulk density |
| spellingShingle | Seiji Niijima Masashi Shoyama Kazumi Murakami Kodo Kawase Evaluation of the sintering properties of pottery bodies using terahertz time-domain spectroscopy Journal of Asian Ceramic Societies Terahertz time-domain spectroscopy pottery absorption coefficient refractive index water absorption rate bulk density |
| title | Evaluation of the sintering properties of pottery bodies using terahertz time-domain spectroscopy |
| title_full | Evaluation of the sintering properties of pottery bodies using terahertz time-domain spectroscopy |
| title_fullStr | Evaluation of the sintering properties of pottery bodies using terahertz time-domain spectroscopy |
| title_full_unstemmed | Evaluation of the sintering properties of pottery bodies using terahertz time-domain spectroscopy |
| title_short | Evaluation of the sintering properties of pottery bodies using terahertz time-domain spectroscopy |
| title_sort | evaluation of the sintering properties of pottery bodies using terahertz time domain spectroscopy |
| topic | Terahertz time-domain spectroscopy pottery absorption coefficient refractive index water absorption rate bulk density |
| url | http://dx.doi.org/10.1080/21870764.2018.1439610 |
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