TiB2 and TiC particles are heterogeneous nucleation sites for α-Al and advantangeous secondary phases with high modulus. The addition of them can enhance the strength of alloys. However, the agglomeration phenomenon is usual to be seen in microstructure, both intragranular and intergranular distribution.
Size distribution measurement can be done by Scanning Electron Microscope software or other stand alone software like Mountains 8
Particle agglomeration and size distribution can be measured using X-ray computed tomography.
Article X-ray tomography studies on porosity and particle size distr...
the best is using microscopy! Optic or electron doesn't matter. TiB2 and TiC usualy have narrow size destribution. so analysis of size destribution leads to separation of aglomerates and single particles. note you have to measure aglomerate as one particle.
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