000021105 001__ 21105
000021105 005__ 20150420163942.0
000021105 0248_ $$aoai:doc.rero.ch:20101209090417-PP$$punifr$$ppostprint$$prero_explore$$particle$$zthesis_urn$$zreport$$zthesis$$zbook$$zjournal$$zcdu549$$zcdu16$$zpreprint$$zcdu1$$zdissertation$$zcdu34
000021105 041__ $$aeng
000021105 080__ $$a549
000021105 100__ $$aVasić, Srdan$$uTechnical Mineralogy Group, Institute of Mineralogy and Petrography, University of Fribourg, Switzerland - Empa, Swiss Federal Laboratories for Materials Testing and Research, Laboratory for High Performance Ceramics, Duebendorf, Switzerland
000021105 245__ $$9eng$$aXRCT characterisation of Ti particles inside porous Al₂O₃
000021105 269__ $$c2010-04-02
000021105 520__ $$9eng$$aComputed X-ray tomography was used to characterise distribution and sphericity of Ti granules within highly porous (> 35%) Al₂O₃ powder compacts, as they are key parameters for a successful infiltration by Fe-based alloys. Setting of reconstruction constraints, image editing as well as data processing are the most challenging parts of computed X-ray tomography and principal sources of errors that bias the generated data. Thus, corrective measures have to be applied and the reliability of generated data has to be proved with respect to statistical, stereological and volumetric aspects. Combining an adapted Interface Particle Treatment Algorithm with the Marching Cube Method, Equilibrium Random State Model, cluster splitting and conventional laser diffraction measurements a significant improvement of the three-dimensional reconstructed data was achieved. This study points out the need of the applied algorithms for the proof and improvement of generated data by computed X-ray tomography and gives a short survey of methods that can be applied.
000021105 695__ $$9eng$$aX-ray tomography ; Particle distribution ; Spheroidicity ; Data reliability ; MMC
000021105 700__ $$aGrobéty, Bernard$$uTechnical Mineralogy Group, Institute of Mineralogy and Petrography, University of Fribourg, Switzerland
000021105 700__ $$aKuebler, Jakob$$uEmpa, Swiss Federal Laboratories for Materials Testing and Research, Laboratory for High Performance Ceramics, Duebendorf, Switzerland -
000021105 700__ $$aGraule, Thomas$$uEmpa, Swiss Federal Laboratories for Materials Testing and Research, Laboratory for High Performance Ceramics, Duebendorf, Switzerland
000021105 700__ $$aBaumgartner, Lukas$$uInstitute of Mineralogy and Petrography, Earth Science, University of Lausanne, Switzerland
000021105 773__ $$g2010/61/6/653-660$$tMaterials Characterization
000021105 775__ $$gPublished version$$ohttp://dx.doi.org/10.1016/j.matchar.2010.03.012
000021105 8564_ $$fvas_xct.pdf$$qapplication/pdf$$s529321$$uhttp://doc.rero.ch/record/21105/files/vas_xct.pdf$$yorder:1$$zpdf
000021105 918__ $$aFaculté des sciences$$bDécanat, Ch. du Musée 6A, 1700 Fribourg$$cGéosciences
000021105 919__ $$aUniversité de Fribourg$$bFribourg$$ddoc.support@rero.ch
000021105 980__ $$aPOSTPRINT$$bUNIFR$$fART_JOURNAL
000021105 990__ $$a20101209090417-PP