Preparation & Characterization of h-BN Coatings on Ti-Based Substrate Synthesized via the PDCs Route:Tribological Applications in Severe Conditions
H-BN coatings can be achieved by the Polymer Derived Ceramics (PDCs) route on metallic substrate,i.e.titanium.The ceramization process is led via an optical treatment by IR irradiation to overcome the problem of the metal stability at high temperature (needed in classical process).Structural and chemical characterisations by XRD,IR,RAMAN and EDS show that the obtained crackless coatings have a micro composite structure composed by a μ-layer of TiBx/TiN at the interphase,the h-BN coating and a layer of BN(O) at the surface.Hereafter,tribological and mechanical analyses investigated through nano-and micro-indentation give a weak friction coefficient and show a good adherence between the substrate and the coating.This good adherence can be explained by the formation of Ti-B-N bond at the interface.
h-BN PDCs IR irradiation micro-composite TiBx/TiN Interphase
S.Yuan B.Toury S.Benayoun
Laboratoire des Multimatériaux et Interfaces,UMR 5615 CNRS-Université Lyon 1,Université de Lyon,43 b Laboratoire des Multimatériaux et Interfaces,UMR 5615 CNRS-Université Lyon 1,Université de Lyon,43 b Laboratoire de Tribologie et Dynamique des Surfaces,UMR 5513 CNRS-Ecole Centrale de Lyon,36 Avenue G
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
858-863
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）