"Tribologie" . . "Le poly-aryl-\u00E9ther-\u00E9ther-c\u00E9tone (PEEK) est un polym\u00E8re thermoplastique qualifi\u00E9 de haute performance. Celui-ci suscite l\u2019int\u00E9r\u00EAt de la recherche et de l\u2019industrie pour ses propri\u00E9t\u00E9s m\u00E9caniques remarquables et sa grande stabilit\u00E9 chimique. Cependant, le PEEK reste relativement sensible \u00E0 l\u2019usure. Le d\u00E9p\u00F4t d\u2019un rev\u00EAtement dur \u00E0 la surface d\u2019un mat\u00E9riau sujet \u00E0 l\u2019usure est un moyen de prot\u00E9ger ce dernier de l\u2019usure. Les rev\u00EAtements de type diamond-like carbon (DLC) sont des mat\u00E9riaux connus pour avoir une tr\u00E8s bonne r\u00E9sistance \u00E0 l\u2019usure permettant de prot\u00E9ger efficacement les substrats sur lesquels ils sont d\u00E9pos\u00E9s. La g\u00E9n\u00E9ration d\u2019une texturation \u00E0 la surface du mat\u00E9riau d\u2019int\u00E9r\u00EAt est un autre moyen de contr\u00F4ler son usure. Les lasers femtosecondes se r\u00E9v\u00E8lent \u00EAtre des dispositifs tr\u00E8s int\u00E9ressants pour r\u00E9aliser rapidement des texturations de grande pr\u00E9cision. Les travaux pr\u00E9sent\u00E9s dans ce m\u00E9moire ont pour objectif de combiner le d\u00E9p\u00F4t d\u2019un rev\u00EAtement de surface de type DLC et la texturation de surface par laser femtoseconde afin d\u2019am\u00E9liorer les performances tribologiques du PEEK. La d\u00E9marche employ\u00E9e a consist\u00E9, dans un premier temps, \u00E0 \u00E9laborer un rev\u00EAtement DLC permettant de prot\u00E9ger efficacement le PEEK de l\u2019usure et ayant une excellente adh\u00E9rence avec celui-ci puis, \u00E0 \u00E9tudier l\u2019influence de la texturation de surface, et plus pr\u00E9cis\u00E9ment l\u2019influence des param\u00E8tres g\u00E9om\u00E9triques de la texturation, sur le comportement tribologique du PEEK rev\u00EAtu de DLC." . . . . "Elaboration d'un composite DLC-PEEK textur\u00E9 par laser femtoseconde et caract\u00E9risation de ses propri\u00E9t\u00E9s m\u00E9caniques et tribologiques" . "Usure" . . "Elaboration d'un composite DLC-PEEK textur\u00E9 par laser femtoseconde et caract\u00E9risation de ses propri\u00E9t\u00E9s m\u00E9caniques et tribologiques" . . "PEEK" . "Laser femtoseconde" . "Development of a surface textured DLC-PEEK composite using a femtosecond laser and characterization of its mechanical and tribological properties" . . . "Poly-ether-ether-ketone (PEEK) is a thermoplastic polymer which is often described as a high performance polymer. It is a material subjected to intensive academic and industrial researches for its remarkable bulk mechanical properties and its high chemical stability. However, PEEK is relatively sensitive to wear. The deposition of hard coatings onto materials subjected to wear is a means of protecting them from wear. Diamond-like carbon (DLC) coatings are known to be highly resistant to wear allowing to efficiently protect the substrate onto which they are deposited. Surface texturing is another means of controlling wear. Femtosecond lasers have proven to be very interesting devices in order to quickly produce high-precision textured surfaces. The work presented in this thesis aims at combining the deposition of a DLC coating and laser surface texturing in order to improve the tribological properties of PEEK. The approach was first to develop a highly adherent DLC coating able to efficiently protect the PEEK substrate from wear and then to study the influence of surface texturing, and more precisely the influence of some geometrical parameters, on the tribological behavior of the DLC-coated PEEK. Tt" . . . . . "Adh\u00E9rence" . "Th\u00E8ses et \u00E9crits acad\u00E9miques" . "Texturation" . . . . "Tribologie (technologie)" . . . "Text" . . . "Traitements de surfaces par laser" . . . "DLC" . "2017" .