Application of X-ray scanning and tomography to evaluate the filtercake removal efficiency

Two nuclear methodologies were used for porosity and pore size distribution determination of SiC ceramic foams. Thirty samples were analysed, six of each one of the following pore densities: 30, 45, 60, 80 and 100 pores per inch (ppi). The two nuclear techniques employed were X-ray microtomography and gamma ray transmission. For the microtomography technique, the spatial resolution of the images was 32 mm. For the gamma ray transmission methodology, a NaI (Tl) scintillation detector and Am-241 radioactive source were used. The gamma transmission technique was precise for porosity determination in relationship to the nominal values supplied for the sample manufacturer. The 30 and 45 ppi samples analysed by the microtomography technique present average porosities equivalent to the nominal porosity, and the other samples present an average of 4?6% smaller values. The 30 and 45 ppi sample two-dimensional images show voids inside the structural solid material of the ceramic.

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Application of X-ray scanning and tomography to evaluate the filtercake removal efficiency

Cited by 2 publications

References 6 publications

Quantitative evaluation of bone-mineral density loss using X-ray coherent scattering

Quantitative evaluation of bone-mineral density loss using X-ray coherent scattering

Determination of the porosity and pore size distribution of SiC ceramic foams by nuclear methodologies

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