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A Predicting Method for Thermal Conductivity of Functional Carbide Crystals and Ceramic Materials

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Abstract:

A new method for predicting the thermal conductivity of functional carbide crystals and ceramics materials is proposed. The effect of average relative atomic mass and density on thermal conductivities of carbide function crystals and ceramics is considered in the method. Correlations are developed for thermal conductivity with average relative atomic mass and density according to the microscope theories of heat conduction. The thermal conductivities calculated from the prediction equation for many functional carbide crystals and ceramics were compared with the measured dada and found to be agreement. It is show that, for the most of functional carbide crystals and ceramics materials, the relative error between the predicting values and the measuring data is ± 20%. It is discovered in further analysis that the larger the average relative atomic mass and density are, the more accurately the thermal conductivities predict.

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Periodical:

Key Engineering Materials (Volumes 280-283)

Pages:

1175-1178

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.280-283.1175

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Online since:

February 2007

Authors:

Qing Ren Wu, Xiao Ping Wang, Hua Qing Xie, Tonggeng Xi

Keywords:

Average Atomic Density, Average Relative Atomic Mass, Prediction, Thermal Conductivity (TC)

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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References

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