Journal article

X-ray computed micro tomography as complementary method for the characterization of activated porous ceramic preforms

  • Vasic, Srdan Technical Mineralogy Group, Institute of Mineralogy and Petrography, University of Fribourg, Switzerland - EMPA, Swiss Federal Laboratories for Materials Testing and Research, Lab. for High Performance Ceramics, Duebendorf, Switzerland
  • Grobéty, Bernard Technical Mineralogy Group, Institute of Mineralogy and Petrography, University of Fribourg, Switzerland
  • Kuebler, J. EMPA, Swiss Federal Laboratories for Materials Testing and Research, Lab. for High Performance Ceramics, Duebendorf, Switzerland
  • Graule, T. EMPA, Swiss Federal Laboratories for Materials Testing and Research, Lab. for High Performance Ceramics, Duebendorf, Switzerland
  • Baumgartner, Lukas P. Institute of Mineralogy and Petrography, Earth Science, University of Lausanne, Switzerland
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    2007
Published in:
  • Journal of Materials Research. - 2007, vol. 22, no. 5, p. 1414-1424
English X-ray computed micro tomography (CT) is an alternative technique to the classical methods such as mercury intrusion (MIP) and gas pycnometry (HP) to obtain the porosity, pore-size distribution, and density of porous materials. Besides the advantage of being a nondestructive method, it gives not only bulk properties, but also spatially resolved information. In the present work, uniaxially pressed porous alumina performs activated by titanium were analyzed with both the classical techniques and CT. The benefits and disadvantages of the applied measurement techniques were pointed out and discussed. With the generated data, development was proposed for an infiltration model under ideal conditions for the production of metal matrix composites (MMC) by pressureless melt infiltration of porous ceramic preforms. Therefore, the reliability of the results, received from different investigation techniques, was proved statistically and stereologically.
Faculty
Faculté des sciences et de médecine
Department
Département de Géosciences
Language
  • English
Classification
Mineralogy
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/300203
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