Thermal Conductivity of Sodium Silicate Glasses and Melts: Contribution of Diffusive and Propagative Vibration Modes
The thermal conductivity of silicate melts and glasses is an important physical property for understanding the temperature distribution in high-temperature metallurgical processes; however, the mechanism of heat conduction in these non-crystalline materials remains unclear. Two types of vibration mo...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-11-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2021.753746/full |
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| author | Sohei Sukenaga Takahiko Endo Takahiko Endo Tsuyoshi Nishi Hiroki Yamada Koji Ohara Toru Wakihara Koji Inoue Sakiko Kawanishi Hiromichi Ohta Hiroyuki Shibata |
| author_facet | Sohei Sukenaga Takahiko Endo Takahiko Endo Tsuyoshi Nishi Hiroki Yamada Koji Ohara Toru Wakihara Koji Inoue Sakiko Kawanishi Hiromichi Ohta Hiroyuki Shibata |
| author_sort | Sohei Sukenaga |
| collection | DOAJ |
| description | The thermal conductivity of silicate melts and glasses is an important physical property for understanding the temperature distribution in high-temperature metallurgical processes; however, the mechanism of heat conduction in these non-crystalline materials remains unclear. Two types of vibration modes must be considered to understand the mechanism of heat conduction, namely, propagative and diffusive vibration modes. In the present study, we carefully derived the thermal conductivity of pure silica and sodium disilicate glasses and melts, and estimated the contribution of the diffusive vibration mode using a recently developed model. The results indicated that the diffusive vibration mode was not dominant in the silicate non-crystalline materials, whereas the propagative vibration mode (i.e., phonons) was dominant in the heat conduction of silicate glasses and melts, which is in contrast with borate glasses. |
| first_indexed | 2024-12-17T12:26:12Z |
| format | Article |
| id | doaj.art-11576218322744a9bb2513153a7d0d95 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-12-17T12:26:12Z |
| publishDate | 2021-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-11576218322744a9bb2513153a7d0d952022-12-21T21:48:45ZengFrontiers Media S.A.Frontiers in Materials2296-80162021-11-01810.3389/fmats.2021.753746753746Thermal Conductivity of Sodium Silicate Glasses and Melts: Contribution of Diffusive and Propagative Vibration ModesSohei Sukenaga0Takahiko Endo1Takahiko Endo2Tsuyoshi Nishi3Hiroki Yamada4Koji Ohara5Toru Wakihara6Koji Inoue7Sakiko Kawanishi8Hiromichi Ohta9Hiroyuki Shibata10Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, JapanInstitute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, JapanGraduate School of Environmental Studies, Tohoku University, Sendai, JapanGraduate School of Science and Engineering, Department of Materials Science and Engineering, Ibaraki University, Hitachi, JapanJapan Synchrotron Radiation Research Institute (Spring-8/JASRI), Sayo, JapanJapan Synchrotron Radiation Research Institute (Spring-8/JASRI), Sayo, JapanInstitute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo, JapanInstitute for Materials Research, Tohoku University, Sendai, JapanInstitute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, JapanGraduate School of Science and Engineering, Department of Materials Science and Engineering, Ibaraki University, Hitachi, JapanInstitute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, JapanThe thermal conductivity of silicate melts and glasses is an important physical property for understanding the temperature distribution in high-temperature metallurgical processes; however, the mechanism of heat conduction in these non-crystalline materials remains unclear. Two types of vibration modes must be considered to understand the mechanism of heat conduction, namely, propagative and diffusive vibration modes. In the present study, we carefully derived the thermal conductivity of pure silica and sodium disilicate glasses and melts, and estimated the contribution of the diffusive vibration mode using a recently developed model. The results indicated that the diffusive vibration mode was not dominant in the silicate non-crystalline materials, whereas the propagative vibration mode (i.e., phonons) was dominant in the heat conduction of silicate glasses and melts, which is in contrast with borate glasses.https://www.frontiersin.org/articles/10.3389/fmats.2021.753746/fullsilicate glass and meltthermal conductivityheat capacitydensitypropagonsdiffusons |
| spellingShingle | Sohei Sukenaga Takahiko Endo Takahiko Endo Tsuyoshi Nishi Hiroki Yamada Koji Ohara Toru Wakihara Koji Inoue Sakiko Kawanishi Hiromichi Ohta Hiroyuki Shibata Thermal Conductivity of Sodium Silicate Glasses and Melts: Contribution of Diffusive and Propagative Vibration Modes Frontiers in Materials silicate glass and melt thermal conductivity heat capacity density propagons diffusons |
| title | Thermal Conductivity of Sodium Silicate Glasses and Melts: Contribution of Diffusive and Propagative Vibration Modes |
| title_full | Thermal Conductivity of Sodium Silicate Glasses and Melts: Contribution of Diffusive and Propagative Vibration Modes |
| title_fullStr | Thermal Conductivity of Sodium Silicate Glasses and Melts: Contribution of Diffusive and Propagative Vibration Modes |
| title_full_unstemmed | Thermal Conductivity of Sodium Silicate Glasses and Melts: Contribution of Diffusive and Propagative Vibration Modes |
| title_short | Thermal Conductivity of Sodium Silicate Glasses and Melts: Contribution of Diffusive and Propagative Vibration Modes |
| title_sort | thermal conductivity of sodium silicate glasses and melts contribution of diffusive and propagative vibration modes |
| topic | silicate glass and melt thermal conductivity heat capacity density propagons diffusons |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2021.753746/full |
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