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Report No.

Evaluation of dielectric properties of CNT-containing alumina composites for hybrid heating

Yamada, Masaaki*; Segawa, Tomoomi ; Fukasawa, Tomonori*; Ishigami, Toru*; Fukui, Kunihiro*

The microwave heating method is used in the reprocessing process of spent fuels. It is possible to improve the quality of raw powder by using microwave heating and an external heating source together. However, the use of external heating in a microwave irradiation field causes a problem of deterioration of equipment. Therefore, the hybrid heating using a carbon nanotube (CNT) -containing alumina composite material with a large relative permittivity as an external heating source has been studied. To clarify the effect of the CNT content on the dielectric properties, the microwave heating characteristics were measured and evaluated, and numerical simulation was carried out. From these results, the microwave heating characteristics can be controlled by adjusting the CNT content in the CNT-containing alumina composite material.



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