Thermal Diffusivity of Molten Carbonates at Elevated Temperatures

Hiroyuki Shibata; Hiromichi Ohta; Hiroyuki Yoshida

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Thermal Diffusivity of Molten Carbonates at Elevated Temperatures

机译：Thermal Diffusivity of Molten Carbonates at Elevated Temperatures

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Thermal diffusivities of molten carbonates, Li_2CO_3, Na_2CO_3, K_2CO_3, Rb_2CO_3 and Cs_2CO_3 have been determined as a function of temperature using the differential three-layered laser flash method. The thermal diffusivity values of five carbonates in the molten state were found to be in the range of 3 ～ 4 x 10~(-7) m~2/s with slightly positive temperature dependence. In addition, the thermal diffusivity values of molten carbonates are independent of the type of cation. These features agree well with the results reported by Otsubo et al. in 1997 using the forced Rayleigh scattering method.

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来源
《HIGH TEMPERATURE MATERIALS AND PROCESSES》 |2002年第3期|139-142|共4页
作者
Hiroyuki Shibata; Hiromichi Ohta; Hiroyuki Yoshida;
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作者单位

Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan;

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正文语种英语
中图分类金属学与热处理;
关键词
laser flash technique; molten carbonates; thermal diffusivity; high temperature;

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Thermal Diffusivity of Molten Carbonates at Elevated Temperatures

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