2014 Fiscal Year Final Research Report
Study of the thermal conductivity of the molten glass of solidification of radioactive waste by inversion and ultra-short time laser flash method
| Project/Area Number |
24656565
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nuclear engineering
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 高温融体 / 珪酸塩 / ガラス固化 / バックエンド / 融体物性 / 放射性廃棄物 / 熱浸透率 / レーザーフラッシュ法 |
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| Outline of Final Research Achievements |
The thermal conductivity of the molten glass of solidification of radioactive waste is measured by inversion and ultra-short time laser flash method. In the method, The laser pulse is irradiated to the bottom surface of the thin platinum cells. The temperature response of the surface is measured by the infrared ray detector. The model to reveal relation of the structure of melts and thermal conductivity are developed. A random network model represents the decrease of thermal conductivity by breaking network in melts. A model considering large complex silicate ion shows the more successful result. The effect of cation in melts is also considered.
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| Free Research Field |
高温融体の熱物性
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