Stereological Analysis of Nonspherical Particles in Solid Metal
Stereological Analysis of Nonspherical Particles in Solid Metal
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DOI：
10.1007/s11663-013-9824-x
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发表时间：
2013-06-01
影响因子：
3
通讯作者：
Narita, Shunsuke
中科院分区：
文献类型：
--
作者：
Li, Tao;Shimasaki, Shin-ich;Narita, Shunsuke
本文回顾了颗粒的体视学理论，并对分散在固体铝中的非球形TiB_2颗粒进行了体视学分析。分别用光学显微镜和电传感区方法测量了由TiB2粉末投影面积(PSDP)得到的二维(2D)粒子尺寸分布(PSD)和基于颗粒体积的三维(3D)粒子尺寸分布(3D)。对两种方法得到的结果进行了比较，并对两种方法进行了相互转换，使用了粒子的拟合分形维。通过对一系列X射线显微CT图像进行粒子三维重建，测量了单个非球形粒子横截面积的概率质量函数。在体视学模型的基础上，根据CSA(PSDC)将3DPSD转换为2DPSD。讨论了从2DPSDC到3DPSD的逆问题。
We review in this article the stereological theory of particles and perform stereological analysis of nonspherical TiB2 particles dispersed in solid aluminum. The two-dimensional (2D) particle size distribution (PSD) obtained from a projected area (PSDP) of TiB2 powder and the three-dimensional (3D) PSD based on the volume of particles were independently measured by optical microscopy and the electrical sensing zone method, respectively. The results obtained by the two methods were compared by transforming between them, using a fitted fractal dimension for the particles. The probability mass function of the cross-sectional areas (CSAs) of single nonspherical particles was measured by sectioning 3D reconstructions of particles obtained from a series of X-ray micro-CT images. The transformation from 3D PSD to 2D PSD according to the CSA (PSDC) was performed based on the stereological model. The inverse problem for the transformation from the 2D PSDC to 3D PSD is discussed.