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9 juillet 2013

Not-weak knots bolster carbon fiber

Not-weak knots bolster carbon fiber

July 8, 2013 — Large flakes of graphene oxide are the essential ingredient in a new recipe for robust carbon fiber created at Rice University.
The fiber spun at Rice is unique for the strength of its knots. Most fibers are most likely to snap under tension at the knot, but Rice's fiber demonstrates what the researchers refer to as "100 percent knot efficiency," where the fiber is as likely to break anywhere along its length as at the knot.
The new work from the Rice lab of chemist James Tour appears online today in the journal Advanced Materials.(...)