Nano Applications
"Nano" is the buzzword of the day. Nano technology is a collective term for a broad pallet of applications that have to do with structures and processes on the nanometer scale: solid particles in suspensions and powders, dusts, drops of liquid in emulsions, fogs, sprays or foams whose primary dimensions are less than 100 nm.
Nanoparticles have a very large specific surface, the surface atoms of which are usually very reactive. That is what makes nanoparticles so unique and results in their special properties.
With the aid of such particles, it is possible to manufacture extremely hard and scratch-resistant coatings, materials with new properties such as low-sintering ceramics, amorphous (transparent) metals, and materials with high tensile strength and fracture toughness at low temperatures or superplasticity at higher temperatures. Nanoparticles are smaller than viruses and bacteria. Therefore, as a rule, they can easily penetrate cells. This characteristic makes nanoparticles interesting for the pharmaceutical industry, since they can be used to transport "effective ingredients" through biological barriers such as the blood-cerebral barrier for example.
There are two ways to produce nanoparticles. With the condensation or "bottom-up" method, the particles are created through molecular aggregation of an existing substance in dissolved, liquid, or gaseous form. These sol-gel techniques, precipitation techniques, micro-emulsion and gas phase processes are advantageous in that it is possible to produce high-purity, practically mono-dispersed spherical particle systems. The disadvantage is that the maximum productive capacity is usually quite low. This means that, as a rule, these methods offer only limited capacity for scale-up.
The production of very fine particles through comminution of coarse particles is referred to as the dispersiondispersion
Dispersions are heterogeneous mixtures of at least two barely soluble or coalescing substances. or "top-down" method. High energy densities such as those achieved in agitator bead mills are required for such grindinggrinding
Crushing of a solid either in dry or suspended form. tasks. Wet grindinggrinding
Crushing of a solid either in dry or suspended form. is the primary mode of operation for agitator bead mills. They are employed in many branches of industry for comminution of raw materials as well as dispersingdispersing
Wetting, separation and stabilization of primary particles. fine pigments and products of the "bottom-up" method.
Additional Information and Machine Recommendations can be found on the following pages:
As chip capacitors for surface mounting, these tiny discrete capacitors are built into almost every electronic device on printed circuit boards. In principle, these multilayer ceramic capacitors consist of a multitude of individual capacitors that are stacked on top of each other and are connected in a parallel circuit.
Multilayer Ceramic Capacitors (MLCC)
With LCD (Liquid Crystal Display) technology it is possible to produce space-saving, flicker-free, low-radiation displays that are easier on the eyes than conventional television or computer monitors. In addition, liquid crystal displays have a sharper picture with greater contrast and they use less power.
The only known method to finely polish wafers for chip production is the CMP process (Chemical Mechanical Polishing). In this process, polishing agent suspensions are used to machine the material. These suspensions have a chemical effect on the layer being polished as well as a mechanical, abrasive effect on the surface of the wafer.
Under the influence of light, certain materials catalyze chemical reactions such as the decomposition of organic substances. The photo-catalytic properties of titanium dioxide (TiO2) are used for self-cleaning surfaces, antibacterial materials and for air and water purification.
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