The transverse thermal conductivity of 2D-SiCf/SiC composites

Fabricating SiC whiskers of different sizes by controlling only the CVD deposition position

“…The whiskers were grown in a horizontal hot-wall furnace 6), 11) using low-pressure chemical vapor deposition (LPCVD). Carbon woven fabric (Hankuk Carbon Co., Ltd.) with a filament diameter of 8¯m was used as a substrate.…”

A study of surface-coated SiC whiskers on carbon fiber substrates and their properties for diesel particulate filter applications

“…Whiskers and additional surface coatings were grown by the CVI process using low-pressure chemical vapor deposition (LPCVD) in a horizontal hot-wall furnace [7,8]. Carbon fiber (3327, Hankuk Carbon Co. LTD., Korea) was used as a substrate, which was cleaned with methyl alcohol and deionized (DI) water and then dried at 100 8C in a desiccator.…”

Thermal properties of silicon carbide composites fabricated with chopped Tyranno® SiAlC fibres

“…3, the preferential alignment of SA fibres in the SiC matrix should also exhibit anisotropic thermal behaviour. In the present work, however, only the thermal properties parallel to the direction of loading, i.e., transverse direction, have been considered due to (i) the difficulty in preparing a specimen of sufficient thickness to test in the direction perpendicular to loading, and (ii) previous research having tended to concentrate on thermal properties in the transverse direction, 19,20 as this is the limiting factor in many applications, e.g., fusion power blankets. 39 Thermal conductivity data in the transverse direction has been shown in Fig.…”

“…In contrast to this, values of κ for CFR-SiC composites measured in the transverse direction are often <20 W m −1 K −1 at room temperature, although values as high as 75 W m −1 K −1 have been reported as shown in Table 1. [17][18][19][20][21][22] The value of κ for composite materials is known to depend on the individual values of the fibre, κ f , matrix, κ m , and interface layer, κ i , together with the processing parameters and amount and morphology of any porosity. 20,[23][24][25][26] Several approaches have been taken towards predicting the value of κ for composite materials with the simplest methods being the parallel and series models as follows:…”