Zur Struktur der Aluminiumtrihydroxide

Wefers, K.

doi:10.1007/bf00633956

Cited by 32 publications

(31 citation statements)

References 2 publications

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“…The ubiquitous presence of Na + ions in gibbsite crystal lattice is well documented (14,15), suggesting a possible link with the stabilization of the Al(OH) 3 molecular structure. In our recent particle interaction and seeded crystallization studies (17)(18)(19)(20), it was established that gibbsite interfacial structure development and particle interactions were stronger in sodium than in potassium aluminate solutions.…”

Section: Al(oh)mentioning

confidence: 96%

“…Na + ion adsorption onto gibbsite particle surfaces in concentrated electrolytes (up to 3 M Na + ions) is significantly greater than for K + ions (47). Strong interaction and incorporation of Na + into gibbsite crystal lattice occur when crystallized from sodium aluminate liquors and is believed to stabilize the octahedral Al(OH) 3 structure (15,16,47). The present work shows that Na + incorporation is 10 times greater than that of K + .…”

Section: Order Of Reaction and Activation Energy Of Nucleationmentioning

confidence: 97%

See 1 more Smart Citation

The Influence of Alkali Metal Ions on Homogeneous Nucleation of Al(OH)3 Crystals from Supersaturated Caustic Aluminate Solutions

Li¹,

Prestidge²,

Addai‐Mensah³

2000

Journal of Colloid and Interface Science

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Section: Al(oh)mentioning

confidence: 96%

Section: Order Of Reaction and Activation Energy Of Nucleationmentioning

confidence: 97%

The Influence of Alkali Metal Ions on Homogeneous Nucleation of Al(OH)3 Crystals from Supersaturated Caustic Aluminate Solutions

Li¹,

Prestidge²,

Addai‐Mensah³

2000

Journal of Colloid and Interface Science

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“…A continuous and compact intermediate sub-layer is also formed just beneath the outer acicular layer, as shown in Fig. 1(b) [15][16][17][18][19]. The formation of an outer acicular layer and intermediate sub-layer traps the palladium acetate, (which was impregnated during the colouring), underneath the film surface.…”

Section: Resultsmentioning

confidence: 99%

Area-selective microscale metallization on porous anodic oxide film of aluminium

Jha¹,

Kikuchi²,

Sakairi³

et al. 2007

Electrochemistry Communications

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A new method for micropatterning of metallic patterns on porous anodic oxide film of aluminium is described. The porous anodic oxide film was impregnated with organic dye and palladium ions before the hydrothermal pore-sealing. The surface layers formed during the pore-sealing, i.e. outer acicular hydroxide layer and a compact intermediate sub-layer trap the palladium ion underneath the layers. Exposing the palladium enriched area by the help of laser beam followed by electroless nickel deposition results the deposition of nickel on the laser-exposed part. Thickness of the deposits can be up to about 2-3μm, after about the 20 min of immersion in electroless nickel plating bath. The metallic micropatterns, formed by the method are crack free, smooth and uniform over extended length.

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“…3 (b). This shows the value of the outer acicular bhoemite layer and compact intermediate sub-layer formed on the film surface by the hydrothermal pore-sealing [15,16]. The layers formed on the surface can be precisely removed from the porous layer by the low power laser beam.…”

Section: Modes Of Laser-machining Of Anodic Alumina Filmmentioning

confidence: 96%

Laser micromachining of porous anodic alumina film

et al. 2007

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A laser direct-write process on porous anodic alumina film is carried out for the fabrication of microstructure on the film, using nanosecond, second harmonic Nd:YAG laser. Laser micromachining can be preformed in two different ways on colored and pore-sealed anodic alumina film, to generate microstructures on the film. Removal of the aluminum substrate before laser irradiation greatly improves the shape characteristics of the microstructure. The depth of microstructures can be controlled by the power and the scanning speed of the laser beam. Several structures with depths from 1 to 35μm were fabricated on anodic alumina film with good precision and reproducibility.

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Zur Struktur der Aluminiumtrihydroxide

Cited by 32 publications

References 2 publications

The Influence of Alkali Metal Ions on Homogeneous Nucleation of Al(OH)3 Crystals from Supersaturated Caustic Aluminate Solutions

The Influence of Alkali Metal Ions on Homogeneous Nucleation of Al(OH)3 Crystals from Supersaturated Caustic Aluminate Solutions

Area-selective microscale metallization on porous anodic oxide film of aluminium

Laser micromachining of porous anodic alumina film

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