It can be used, wherever metals are exposed to strong weather conditions, aggressive gases, salty media, extensive wear and tear or high pressure. From 23 to 27 April 2012, researchers of INM — Leibniz Institute for New Materials present their results at the leading trade fair "Research and Technology" in Hall 2 at the stand C54.
Foto: Uwe Bellhäuser
"This patented composite shows its effect by simple spraying", explains Carsten Becker-Willinger, head of the program division "Nanomere". "What makes this coating so special is its structuring: The protective particles arrange themselves like roof-tiles. Similar to a wall, several layers of particles arrange themselves in a staggered pattern on top of each other, resulting in a self-organized, highly structured barrier", says the expert for chemical nanotechnology.
The protective coating is only a few millimeters thick and prevents the penetration of gases and electrolytes. It protects from corrosion caused by aggressive aqueous solutions, such as salty solutions (e.g. splash water containing road salt or sea water) or aqueous acids (e.g. acid rain). The protective coating is also an effective barrier against corrosive gases or under pressure.
After thermal curing, the composite adheres on metallic substrate, it is abrasion- and impact-resistant. For this purpose, it also withstands a highly mechanical load: The coating passes the ball-drop test with a 1.5 kg semi-spherical steel ball, which is dropped from a height of 1 metre without causing parts to chip off or the coating to crack. Only light deformation is shown. Thus, the new material can also be used with sand or mineral dust without wear and tear.
The composite can be deposited by spraying or with other wet-chemical processes and cured at temperatures from 150 to 200°C. It is suitable for steel, metal alloys or copper. Panels, tubes, cogwheels, tools or engine parts in any shape can be coated. The special mixture consists of a solvent, a binder and nanoscale platelet-like particles, but no chrome VI or other heavy metals.Contact:
InLight study: insights into chemical processes using light
05.12.2016 | Fraunhofer-Institut für Lasertechnik ILT
Physics, photosynthesis and solar cells
01.12.2016 | University of California - Riverside
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
06.12.2016 | Power and Electrical Engineering
06.12.2016 | Earth Sciences
06.12.2016 | Physics and Astronomy