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Report No.
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Thermal diffusivity of zirconia-ceramic materials (3Y-TZP); Interim report on irradiation examinations: 02M-73A

Baba, Shinichi; Shibata, Taiju ; Ishihara, Masahiro ; Sawa, Kazuhiro

This paper describes the outline of the neutron irradiation test on the thermal properties of zirconia material(3Y-TZP). The measured data of thermal diffusivity for the 3Y-TZP and the outlines of the thermal properties for zirconia-based materials applied to the Thermal Barrier Coating(TBC)/Inert Matrx Fuel(IMF) are also described in this report. The thermal diffusivity is measured by the laser flash method (L/F method). The analyses of the data are adopted with the 3-techniques regulated on Japan Industrial Standard (JIS). Namely, it is (1) the half-time method, (2) logarithmic and (3) regression analysis. The measurements of thermal diffusivity for the both materials isotropic graphite as reference materials and 3Y-TZP are carried out, and discussed to the heat loss. It is necessary to the correction of heat loss in the half-time method for measured at high temperature, and also especially need to the low-thermal diffusivity such as 3Y-TZP.

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