Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Environmentally friendly corrosion protection shows its effect by simple spraying

05.04.2012
Materials researchers from Saarbruecken developed a new composite material, which prevents corrosion of metals even under extreme conditions in an environmentally friendly way.

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.


corrosion protection
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:
Dr. Carsten Becker-Willinger
Program Division „Nanomere“
INM – Leibniz-Institut für Neue Materialien
Phone: +49 681 9300 196
Email: nanomere@inm-gmbh.de
INM, situated in Saarbruecken/Germany, is an internationally leading research centre for innovative materials. Specialised in the three research fields of Chemical Nanotechnology, Interface Materials and Materials in Biology, the institute provides research and development from molecule to pilot production delivered by a highly skilled team of chemists, physicists, biologists, materials and engineering scientists. It cooperates with national and international institutes and develops materials with tailor-made properties for companies throughout the world. INM is an institute of the Scientific Association Gottfried Wilhelm Leibniz and employs around 190 collaborators.

Dr. Carola Jung | idw
Further information:
http://www.inm-gmbh.de/
http://www.wgl.de/

More articles from Materials Sciences:

nachricht Breaking bad metals with neutrons
16.01.2018 | DOE/Argonne National Laboratory

nachricht White graphene makes ceramics multifunctional
16.01.2018 | Rice University

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

Im Focus: A thermometer for the oceans

Measurement of noble gases in Antarctic ice cores

The oceans are the largest global heat reservoir. As a result of man-made global warming, the temperature in the global climate system increases; around 90% of...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

White graphene makes ceramics multifunctional

16.01.2018 | Materials Sciences

Breaking bad metals with neutrons

16.01.2018 | Materials Sciences

ISFH-CalTeC is “designated test centre” for the confirmation of solar cell world records

16.01.2018 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>