AVS 51st International Symposium
    Advanced Surface Engineering Tuesday Sessions
       Session SE-TuM

Invited Paper SE-TuM1
Tribological Coatings: Synthesis, Structure, and Properties

Tuesday, November 16, 2004, 8:20 am, Room 303D

Session: Hard and Low Friction Coatings with Advanced Designs
Presenter: D.V. Shtansky, Moscow State Institute of Steel and Alloys, Russia
Correspondent: Click to Email
Various approaches to design and evolution of tribological coatings are review and refer to our recent results on the deposition, characterization, testing, and application of multicomponent nanostructured thin films. The targets for PVD based on the systems TiN+TiB@sub 2@, Ti@sub 5@Si@sub 3@+Ti, Ti@sub 5@Si@sub 3@+TiN, TiB@sub 2@+Si, TiB@sub 2@+SiC, TiB+Ti@sub 9@Cr@sub 4@B+Cr@sub 2@Ti, CrB@sub 2@, TiB@sub 2@+TiAl+Ti@sub 2@AlN, TiC+Ti@sub 3@SiC@sub 2@+TiSi@sub 2@, TiC@sub 0.5@+ZrO@sub 2@, TiC@sub 0.5@+CaO, Ti@sub 5@Si@sub 3@+ZrO@sub 2@, and TiC@sub 0.5@+Nb@sub 2@C were manufactured by means of self-propagating high-temperature synthesis (SHS). Multicomponent films were deposited by DC magnetron sputtering of composite targets either in an atmosphere of argon or reactively in a gaseous mixture of argon and nitrogen. The BN and WSe@sub x@ films were deposited using a sintered hexagonal BN and a cold compacting WSe@sub 2@ target, respectively. The WSe@sub x@ films were deposited by pulsed laser deposition (PLD) and ion-assisted PLD technique. The microstructure and chemical composition of films were studied by means of AES, EDXS, XRD, SEM, TEM, high-resolution TEM, XPS, and EELS. The films were characterized in terms of their hardness, elastic modulus, elastic recovery, adhesion, surface topography, friction, and wear. The biocompatibility of the medical films was evaluated by both in vitro and in vivo experiments. Three groups of films are considered: 1) nanostructured hard, tribological coatings Ti-B-N, Ti-Cr-B-N, Ti-Si-N, Ti-Al-B-N, Ti-Si-C-N, Ti-Si-B-N, BN, and Cr-B-N; 2) double-layer self-lubricating/hard coatings WSe@sub x@/TiC, WSe@sub x@/TiCN, WSe@sub x@/TiSiN, and 3) biocompatible hard coatings for medicine Ti-Ca-C-O-(N), Ti-Zr-C-O-(N), Ti-Zr-Si-O-(N), and Ti-Nb-C-(N). Particular attention is paid to the analysis of the structure of the films in the nanometric scale and the evaluation of the properties of the individual nanostructures.