Due to the difference in the thermal properties of the carbon fiber itself, the thermophysical properties of the CFC preforms with different structures will also be different.

Someone have manufactured unidirectional long-carbon-fiber preforms with different fiber volume fractions, and they have further manufactured unidirectional CFC.

The results show that the thermal conductivity of the CFC along the fiber direction is about 10 times that of the vertical fiber direction.

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