On preparation and reactivity of partial-crystalline aluminas
β Scribed by U. Bollmann; K. Becker; H.-J. Berger; P. Birke; Prof. Dr. S. Engels; G. Gruhn; K. Jancke; P. Kraak; R. Lange; U. Steinike
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 599 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0232-1300
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π SIMILAR VOLUMES
Ordered mesoporous alumina with crystalline framework walls has been fabricated using a repeated nanocasting strategy. Mesoporous silica and mesoporous carbon were successively employed as the exotemplates. Constrained by the rigid carbon template structure, the alumina precursor in the channels of
Unfortunately, alloys with low magnetostriction like Fe-6.5 wt.% Si or Fe 15 wt.% Co 10 wt.% Si are difficult to be prepared as ribbons by conventional methods. The formation of ordered phases (B1 and D0 3 ) causes poor ductility of these alloys. The high quenching rates achieved by melt spinning ar