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首页> 外文期刊>Journal of Applied Physics >Characterization of microvoids in carbon fibers by absolute small‐angle x‐ray measurements on a fiber bundle
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Characterization of microvoids in carbon fibers by absolute small‐angle x‐ray measurements on a fiber bundle

机译：通过对纤维束的绝对小角度X射线测量来表征碳纤维中的微孔

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A method has been developed to characterize the voids in a fibrous material by using the small‐angle x‐ray scattering from a unidirectionally aligned fiber bundle, and the parameters evaluating the sizes, volume fraction, and number of the voids have been deduced. The distribution of cross‐section size of voids has also been considered in relation to the size parameters deduced. The method developed has been applied to a commercial carbon fiber. The values of the size parameters of the carbon fiber, evaluated experimentally by the method developed here, are in good agreement with those calculated by assuming that the distribution of the cross‐section size of voids obeys a Maxwellian distribution. A convenient method for determining the primary beam power by comparing the observed and theoretically calculated scattering intensities of air has also been developed in order to measure the scattering intensity of a specimen in absolute units.
机译：通过使用单向排列的纤维束的小角度X射线散射，已经开发了一种表征纤维材料中空隙的方法，并推导出了评估空隙的大小，体积分数和数量的参数。空隙的横截面尺寸的分布也已与推导的尺寸参数有关。所开发的方法已经应用于商业碳纤维。碳纤维尺寸参数的值（通过此处开发的方法进行实验评估）与假设孔隙横截面尺寸的分布服从麦克斯韦分布的计算值非常吻合。还已经开发了一种通过比较观察到的和理论计算的空气散射强度来确定主光束功率的便捷方法，以便以绝对单位测量样本的散射强度。

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    《Journal of Applied Physics》 |1985年第11期|P.4074-4082|共9页
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  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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