Search Results - RERO DOC

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...

OPEN IN
SONAR

Activation mechanism and infiltration kinetic for pressureless melt infiltration of Ti activated Al₂O₃ preforms by high melting alloy

Vasi, Srdan ; Grobéty, Bernard ; Kuebler, Jakob ; Graule, Thomas

In: Advanced Engineering Materials, 2009, vol. 11, no. 8, p. 659 - 666

The infiltration mechanism of X3CrNi13-4 in titanium activated porous alumina preforms has been studied. Investigations revealed isolated steel-covered titanium particles beyond the infiltration front. The only transport path possible for the steel to form such wetted islands is through the gas phase. Supersaturation due to the mixing of the steel gas phase with the titanium rich gas phase...

Refine my results

Document type

Institution

Specific Collection

Language

Author