Tecnai F20. The rectangles indicate the area used for tomographic visualisation in Fig. 8. (A) Voltex visualisation of a tomographic reconstruction of the PtPd/alumina Figure 8. sample after in situ heating to 850 °C in high vacuum conditions. The porosity is greater at the edge of the sample, far from the contact with the tungsten filament. (B) Orthoslice visualisation. Zone 1 (closer to the tungsten filament) is thought to be more compact than zones 2 and 3 as a result of transformation to α-alumina.
Tecnai F20. The rectangles indicate the area used for tomographic visualisation in Fig. 8. Figure 8. (A) Voltex visualisation of a tomographic reconstruction of the PtPd/alumina sample after in situ heating to 850 °C in high vacuum conditions. The porosity is greater at the edge of the sample, far from the contact with the tungsten filament. (B) Orthoslice visualisation. Zone 1 (closer to the tungsten filament) is thought to be more compact than zones 2 and 3 as a result of transformation to α-alumina.
Heating%20Holder_MAM-13-289_LCG_December%202013%20_submitted.docx