Grinding, Deagglomeration and dispersion to small, relativley uniform particle size.
Dispersion and Deagglomeration by ultrasonication are a result of ultrasonic cavitation.
Boch, Phillipe(1991): Ultrasonic Deagglomeration of AI2O3 and BaTiO3 for tape casting.
Thereby, particle size reduction such as milling, Deagglomeration, and dispersion are achieved.
Deagglomeration describes the process of breaking up or dispersing particles which have agglomerated,
aggregated, or formed clusters.
For the Deagglomeration of the silver nanoparticles and for their sedimentation on the hydroxyapatite,
a Hielscher UP400S was used.
Ultrasound is an effective means for the dispersion and emulsifying, Deagglomeration and milling of such components in coatings.
The effects can be used in liquids for many processes,
e.g. for mixing and blending, Deagglomeration, milling and cell disintegration.
Hard applications with high intensity/ high power
ultrasound(mostly under elevated pressure) are wet-milling, Deagglomeration & particle size reduction, and dispersing.
This includes the use of ultrasonics during precipitation and the Deagglomeration of nano-size materials, like metal oxides or carbon nanotubes.
Thereby, high-power/ low-frequency ultrasound can be used for
the processing of liquids such as mixing, emulsifying, dispersing and Deagglomeration, or milling.
It is designed to work in clusters of four or more units, for large volume processing, such as homogenizing,
dispersing and Deagglomeration.
Due to the effective ultrasonic particle breakage,
the use of surfactants is essential to prevent Deagglomeration of the sub-micron and nano-sized particles obtained.
The basic system consists in the top-down transducer UP200St_TD that is driven by the 200 watt generator(UP200St-G)
suppling the electrical energy for various ultrasonic applications such as dispersing and Deagglomeration, sample preparation, and deaeration.
The effects of power ultrasound for the production of nano materials are well-known: Dispersing, Deagglomeration and Milling & Grinding as well
as Fragmentation by sonication are often the only effective method to treat nano particles.