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首页> 外文期刊>Journal of Materials Research >Assessment of geometrical and transport properties of a fibrous C/C composite preform using x-ray computerized micro-tomography: Part I. Image acquisition and geometrical properties
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Assessment of geometrical and transport properties of a fibrous C/C composite preform using x-ray computerized micro-tomography: Part I. Image acquisition and geometrical properties

机译：使用X射线计算机显微断层摄影术评估纤维C / C复合材料预成型坯的几何和传输特性：第一部分。图像采集和几何特性

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摘要

Raw and partially infiltrated carbon-carbon composite preforms have been scanned by high-resolution synchrotron radiation x-ray computerized micro-tomography. Three dimensional high-quality images of the pore space have been produced at two distinct resolutions and have been used for the computation of geometrical quantities: porosity, internal surface area, pore sizes, and their distributions, as well as local and average fiber directions. Determination of the latter property makes use of an original algorithm. All quantities have been compared to experimental data with good results. Structural models appropriate for ideal families of cylinders are shown to represent adequately the actual pore space.
机译：已通过高分辨率同步辐射X射线计算机显微断层扫描术对未加工的和部分渗透的碳-碳复合材料预成型坯进行了扫描。在两个不同的分辨率下已生成了三维三维空间图像，并已用于计算几何量：孔隙率，内表面积，孔径及其分布以及局部和平均纤维方向。后一种性质的确定利用原始算法。将所有数量与实验数据进行比较，均获得良好结果。显示了适用于理想气缸系列的结构模型，可以充分代表实际的孔隙空间。

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