use of metal templates for microcavity formation in alumina
use of metal templates for microcavity formation in alumina
use of metal templates for microcavity formation in alumina
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3.3. Density Measurements<br />
The f<strong>in</strong>al density was measured by the Archimedes method (ASTM C 20-87).<br />
The immersion liquid was water. The theoretical density <strong>of</strong> alum<strong>in</strong>a is 3,98 g/cm 3 .<br />
3.4. Characterization<br />
In this section, characterization techniques <strong>for</strong> <strong>in</strong>vestigat<strong>in</strong>g the samples were<br />
described. The techniques <strong>use</strong>d were scann<strong>in</strong>g electron microscopy (SEM, Phillips XL-<br />
30S FEG and FEI Quanta250 FEG) <strong>for</strong> microstructural characterization and BET<br />
surface area (BET, Micromeritics Gem<strong>in</strong>i V) <strong>for</strong> measurement <strong>of</strong> surface area <strong>of</strong><br />
alum<strong>in</strong>a powders.<br />
3.4.1. Scann<strong>in</strong>g Electron Microscopy (SEM)<br />
Scann<strong>in</strong>g electron microscope (SEM, Phillips XL-30S FEG and FEI Quanta250<br />
FEG) was <strong>use</strong>d to <strong>in</strong>vestigate the surfaces <strong>of</strong> the alum<strong>in</strong>a samples <strong>for</strong> <strong>in</strong>terpret<strong>in</strong>g the<br />
porous and dense microstructures.<br />
3.4.2. BET Surface Area Measurement<br />
BET surface area measurement (BET, Micromeritics Gem<strong>in</strong>i V) was <strong>use</strong>d to<br />
explore the surface area <strong>of</strong> the alum<strong>in</strong>a powders <strong>for</strong> measur<strong>in</strong>g the pore volumes and<br />
pore sizes.<br />
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