| Página principal > Synchrotron Microtomography Investigation of the Filament Microstructure in Differently Processed Bi-2212 Wires |
| Published Articles | |
| Title | Synchrotron Microtomography Investigation of the Filament Microstructure in Differently Processed Bi-2212 Wires |
| Related title | Synchrotron Microtomography Investigation of the Filament Microstructure in Differently Processed Bi-2212 Wires |
| Author(s) | Scheuerlein, Christian (CERN) ; Rack, Alexander (ESRF, Grenoble) ; Schladitz, Katja (Kaiserslautern U., Math. Dept.) ; Huwig, Luisa (Saarland U.) |
| Publication | 2017 |
| Number of pages | 5 |
| In: | IEEE Trans. Appl. Supercond. 27 (2017) 6400205 |
| In: | Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.6400205 |
| DOI | 10.1109/TASC.2016.2644539 |
| Subject category | Detectors and Experimental Techniques |
| Abstract | The Bi-2212 microstructure and porosity distribution in entire state-of-the-art multifilament wires was characterized by high-energy synchrotron X-ray absorption microtomography after meltprocessing at ambient pressure, at 100 bar overpressure, and at ambient pressure after prior cold isostatic pressing of initially identical as-drawn wires. Beyond the visualization of the Bi-2212 microstructure, the porosity distribution in the different filament bundles has been quantified. Spherical granulometry and finite percolation probability calculations have been performed in order to provide a measure for the porosity distribution and to compare filament connectivity in the axial wire direction. Possible artifacts of the microtomography (μ-CT) experiment and the possibility to estimate the effect of the Bi-2212 microstructure as seen in the μ-CT images on critical current density are discussed. |