Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Low friction coating and corrosion protection - nanocomposite material with double effect

03.04.2012
Materials researchers from Saarbruecken developed a low friction coating combining two properties: It shows lubrication properties similar to grease and oil and it protects from corrosion.
The new material is suitable for the coating of metals and metal alloys, such as steel, aluminium or magnesium. From 23 to 27 April 2012, the researchers from INM — Leibniz Institute for New Materials present these and further results at the leading trade fair "Research and Technology" in Hall 2 at the stand C 54.

Cog wheels, threads, machine parts, cranks and bicycle chains wear out, when their metallic surfaces rub against each other. Lubricants and oils can help to prevent that. But such lubricants containing fat combine with dirt and dust and agglutinate or resinify after a while. Machine parts need to be cleaned and greased in a time-consuming and expensive way – increasing maintenance and higher usage of resources or the temporary breakdown of the engines are the consequences. By using a low friction coating free of grease, such a problem can be avoided. The researchers at INM developed such a low friction coating, which also protects from corrosion.
"What is really special about our low friction coating is its composition and structure", explains Carsten Becker-Willinger, head of the program division "Nanomere". We embedded platelet-like solid-state lubricants and platelet-like particles in a binder. When the composite is applied onto a surface, a well-arranged microstructure forms, in which the various particles arrange in an imbricate structure", Becker-Willinger continues. A so-called transfer film forms between the low friction coating and the counterpart, which allows an almost frictionless sliding of the surfaces on each other. "Only through the special ratio of components, our composite has a very low friction coefficient. If we used only the solid-state lubricant, the friction coefficient would be significantly higher", the chemist notes.

"Our low friction coating can do even more", the expert for chemical nanotechnology explains. "The imbricate structure does not only allow an almost frictionless sliding, but it also shows the effect of a barrier. This is a special advantage, as our material prevents the penetration of humidity or salts to the metal surfaces, i.e. it also prevents from corrosion." Thus, the composite shows a corrosion resistance of over 1,000 hours in the neutral salt spray test on low-alloy steel.

The low friction coating can be applied by using the conventional wet-chemical processes, such as spray- or dip-coating. By simple thermal curing, the imbricate structure forms in self-organization without further interference.

Contact:
Dr. Carsten Becker-Willinger
INM – Leibniz-Institut für Neue Materialien gGmbH
Speaker Chemical Nanotechnology
Head of the Program Division Nanomere
Phone: +49 (0)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 Caterpillars of the wax moth love eating plastic: Fraunhofer LBF investigates degradation process
06.08.2020 | Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF

nachricht Machine learning methods provide new insights into organic-inorganic interfaces
04.08.2020 | Technische Universität Graz

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: ScanCut project completed: laser cutting enables more intricate plug connector designs

Scientists at the Fraunhofer Institute for Laser Technology ILT have come up with a striking new addition to contact stamping technologies in the ERDF research project ScanCut. In collaboration with industry partners from North Rhine-Westphalia, the Aachen-based team of researchers developed a hybrid manufacturing process for the laser cutting of thin-walled metal strips. This new process makes it possible to fabricate even the tiniest details of contact parts in an eco-friendly, high-precision and efficient manner.

Plug connectors are tiny and, at first glance, unremarkable – yet modern vehicles would be unable to function without them. Several thousand plug connectors...

Im Focus: New Strategy Against Osteoporosis

An international research team has found a new approach that may be able to reduce bone loss in osteoporosis and maintain bone health.

Osteoporosis is the most common age-related bone disease which affects hundreds of millions of individuals worldwide. It is estimated that one in three women...

Im Focus: AI & single-cell genomics

New software predicts cell fate

Traditional single-cell sequencing methods help to reveal insights about cellular differences and functions - but they do this with static snapshots only...

Im Focus: TU Graz Researchers synthesize nanoparticles tailored for special applications

“Core-shell” clusters pave the way for new efficient nanomaterials that make catalysts, magnetic and laser sensors or measuring devices for detecting electromagnetic radiation more efficient.

Whether in innovative high-tech materials, more powerful computer chips, pharmaceuticals or in the field of renewable energies, nanoparticles – smallest...

Im Focus: Tailored light inspired by nature

An international research team with Prof. Cornelia Denz from the Institute of Applied Physics at the University of Münster develop for the first time light fields using caustics that do not change during propagation. With the new method, the physicists cleverly exploit light structures that can be seen in rainbows or when light is transmitted through drinking glasses.

Modern applications as high resolution microsopy or micro- or nanoscale material processing require customized laser beams that do not change during...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“Conference on Laser Polishing – LaP 2020”: The final touches for surfaces

23.07.2020 | Event News

Conference radar for cybersecurity

21.07.2020 | Event News

Contact Tracing Apps against COVID-19: German National Academy Leopoldina hosts international virtual panel discussion

07.07.2020 | Event News

 
Latest News

Rare Earth Elements in Norwegian Fjords?

06.08.2020 | Earth Sciences

Anode material for safe batteries with a long cycle life

06.08.2020 | Power and Electrical Engineering

Turning carbon dioxide into liquid fuel

06.08.2020 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>