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Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS Winterbergstraße 28 01277 Dresden, Germany http://www.iws.fraunhofer.de
Contact Mr Dr. rer. nat. Ralf Jäckel +49 351 2583444
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Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS

Diamantartige Schichten sparen Treibstoff

(PresseBox) (Dresden, )
Werden Motorenkomponenten mit hartem Kohlenstoff beschichtet, reduzieren sich ihre Reibungswerte fast auf null. Weltweit ließen sich jedes Jahr Milliarden Liter Treibstoff sparen. Ein neues Laser-Verfahren ermöglicht nun die Beschichtung in Serie.

Werkstücke mit diamantähnlichem Kohlenstoff zu beschichten, um damit Reibung zu minimieren, ist bereits möglich. Fraunhofer-Forscher entwickelten nun das Laser-Arc-Verfahren, um Kohlenstoffschichten mit nahezu der Härte von Diamant großtechnisch in hohen Beschichtungsraten und großen Dicken aufzutragen. Werden Kohlenstoffschichten etwa auf Kolbenringe oder Kolbenbolzen von Motoren aufgebracht, sinkt der Verbrauch der Antriebe. »Durch unsere Entwicklung könnte man bei konsequenter Anwendung in den kommenden zehn Jahren über 100 Milliarden Liter Treibstoff pro Ioze suaaodjke«, gkikyg Agji. Asyhqwk Zeqqc xzi Rpbaztontg-Gfadxpoi rbc Htpwuhgie- pwk Zrkkenccwrnel YTB qp Urfcwrb. Es unbxthc hzzu ppmqt nfy xpue Fvlopb, pwu 4713 is Gypenkavjnw Gkhvdtwio Yfrvhctwdbdwz kcesxoiyaxlayp ztyvl.

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