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 Melting solid below the freezing point
23.01.2017 | Carnegie Institution for Science

nachricht An innovative high-performance material: biofibers made from green lacewing silk
20.01.2017 | Fraunhofer-Institut für Angewandte Polymerforschung IAP

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Quantum optical sensor for the first time tested in space – with a laser system from Berlin

For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.

According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Tracking movement of immune cells identifies key first steps in inflammatory arthritis

23.01.2017 | Health and Medicine

Electrocatalysis can advance green transition

23.01.2017 | Physics and Astronomy

New technology for mass-production of complex molded composite components

23.01.2017 | Process Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>