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XRCT characterisation of Ti particles inside porous Al₂O₃

Vasić, Srdan ; Grobéty, Bernard ; Kuebler, Jakob ; Graule, Thomas ; Baumgartner, Lukas

In: Materials Characterization, 2010, vol. 61, no. 6, p. 653-660

Computed X-ray tomography was used to characterise distribution and sphericity of Ti granules within highly porous (> 35%) Al₂O₃ powder compacts, as they are key parameters for a successful infiltration by Fe-based alloys. Setting of reconstruction constraints, image editing as well as data processing are the most challenging parts of computed X-ray tomography and principal sources of errors...