Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Grease-free bonded coating with incorporated corrosion protection

Material researchers at the INM have developed a bonded coating that combines two properties. It has similar lubrication properties to those associated with greases and oils, and additionally protects against corrosion. The new material is suitable as a coating for metals and metal alloys such as steel, aluminum and magnesium.

The INM will be exhibiting these and other developments from 23 to 24 October at Eurofinish 2013 in Ghent (Belgium).

The new bonded coating is grease-free and also protects against corrosion
Source: Uwe Bellhäuser

Machine parts such as gear wheels, screw threads, cranks and bicycle chains wear if there is friction between their metal surfaces; lubricants and functional oils help prevent this. These grease-based lubricants combine with dirt, abrasion and dust, and over time form lumps or become resinous.

Machine parts then have to be expensively cleaned and regreased, which means more frequent maintenance, greater consumption of resources, polluting waste and at times machine breakdowns. Researchers at the INM have now developed a bonded coating which is grease-free and also protects against corrosion.

“The thing about our bonded coating is its composition and structure”, explains Carsten Becker-Willinger, Head of the Nanomers Program Division. “We have incorporated platelet-like solid lubricants and platelet-like particles in a binder. When this mixture is applied to a surface, it produces a well-ordered structure in which these various particles are arranged in a roof tile pattern”, he adds. This forms a so-called transfer film between the bonded coating and the object through which surfaces can slide with the minimum of friction. “The particular mixture ratio means that our composite has a very low coefficient of friction. If we only used a solid lubricant, the coefficient of friction would be considerably higher”, says the chemist.

The roof tile structure not only provides low-friction sliding, it also acts as a barrier. This is a particular advantage because as a result the material also prevents moisture or salts penetrating metal surfaces, thus also protecting against corrosion. In a neutral salt spray context, the composite has a corrosion resistance of over 1000 hours on low-alloy steel.

The bonded coating can be applied using classic wet chemistry processes such as spraying or dipping. The roof tile structure forms by simple thermal curing without any further assistance in self-organization.

Dr Carsten Becker-Willinger
INM – Leibniz Institute for New Materials
Spokesman Chemical Nanotechnology
Head Program Division Nanomere
Phone: +49681-9300-196
INM conducts research and development to create new materials – for today, tomorrow and beyond. Chemists, physicists, biologists, materials scientists and engineers team up to focus on these essential questions: Which material properties are new, how can they be investigated and how can they be tailored for industrial applications in the future? Four research thrusts determine the current developments at INM: New materials for energy application, new concepts for implant surfaces, new surfaces for tribological applications and nanosafety/nanobio interaction. Research at INM is performed in three fields: Chemical Nanotechnology, Interface Materials, and Materials in Biology.

INM – Leibniz Institute for New Materials, situated in Saarbruecken, is an internationally leading centre for materials research. It is an institute of the Leibniz Association and has about 190 employees.

Dr. Carola Jung | idw
Further information:

More articles from Trade Fair News:

nachricht Development and Fast Analysis of 3D Printed HF Components
19.03.2018 | Fraunhofer-Institut für Hochfrequenzphysik und Radartechnik FHR

nachricht Photovoltaics: easy implementation thanks to modern printing techniques
14.03.2018 | Fraunhofer-Institut für Angewandte Polymerforschung IAP

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

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

Im Focus: Tiny implants for cells are functional in vivo

For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.

In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...

Im Focus: Locomotion control with photopigments

Researchers from Göttingen University discover additional function of opsins

Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...

Im Focus: Surveying the Arctic: Tracking down carbon particles

Researchers embark on aerial campaign over Northeast Greenland

On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...

Im Focus: Unique Insights into the Antarctic Ice Shelf System

Data collected on ocean-ice interactions in the little-researched regions of the far south

The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...

Im Focus: ILA 2018: Laser alternative to hexavalent chromium coating

At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.

When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

Virtual reality conference comes to Reutlingen

19.03.2018 | Event News

Ultrafast Wireless and Chip Design at the DATE Conference in Dresden

16.03.2018 | Event News

International Tinnitus Conference of the Tinnitus Research Initiative in Regensburg

13.03.2018 | Event News

Latest News

A new kind of quantum bits in two dimensions

19.03.2018 | Physics and Astronomy

Scientists have a new way to gauge the growth of nanowires

19.03.2018 | Materials Sciences

Virtual reality conference comes to Reutlingen

19.03.2018 | Event News

Science & Research
Overview of more VideoLinks >>>