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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Table 3.1. Properties <strong>of</strong> alum<strong>in</strong>a powders as published by their producers<br />
(Source: Baikowski, January 2011; Alcoa,Inc., 2010;<br />
Sumitomo Chemical, Co. Ltd., 2010).<br />
CT3000SG<br />
AKP-50<br />
CR6<br />
CR15<br />
CR30F<br />
Crystal<br />
Form<br />
α α α 90%α –10%γ 80%α –20%γ<br />
Purity (%)<br />
Particle<br />
> 99.99 > 99.99 > 99.99 > 99.99 > 99.99<br />
Size<br />
(µm)<br />
Bulk<br />
0.5 – 2.0 0.1 - 0.3 0.3 - 0.4 0.2 - 0.3 0.2 - 0.3<br />
Density<br />
(g/cm 3 )<br />
BET<br />
1.2 0.6 - 1.1 0.6 - 1.1 0.45<br />
0.3<br />
Surface<br />
Area<br />
(m 2 /g)<br />
Impurity<br />
Level<br />
7.8 9 - 15 6<br />
15<br />
26<br />
Si (ppm) ≤ 15 ≤ 25 ≤13 ≤13 ≤16<br />
Na (ppm) ≤ 3 ≤ 10 ≤13 ≤13 ≤13<br />
Mg (ppm) ≤ 4 ≤ 10 ≤1 ≤1<br />
≤1<br />
Cu (ppm) ≤ 1 ≤ 10 ≤1 ≤1<br />
≤1<br />
Fe (ppm) ≤ 15 ≤ 20 ≤4 ≤4<br />
≤5<br />
23
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