par Strangwood, Martin;Ponton, Clive Brian;Delplancke, Marie-Paule 
;Vassileris, V.;Winand, René
Référence Materials Research Society symposia proceedings, 343, page (265-270)
Publication Publié, 1994
;Vassileris, V.;Winand, René Référence Materials Research Society symposia proceedings, 343, page (265-270)
Publication Publié, 1994
Article révisé par les pairs
| Résumé : | The kinetics of formation of reaction layers at the interface between a Ti-based alloy (β-21s) and graphite blocks coated first, by CVD techniques, with a 100 μm layer of SiC and then either TiC or C were detd. The rate controlling step for reaction at 900° and 10 MPa for up to 6 h was carbon diffusion through the reaction layer. The behavior was consistent with that of composite systems for prolonged heat treatment and the same growth behavior was exhibited by both systems. Incubation times of 0.42 and 0.9 h were detd. for reaction layer growth in the TiC- and C-coated systems resp. The reaction layer/Ti-alloy bond strength was good but all couples failed readily, esp. if any C layers remained. The growth conditions of TiC coatings by reactive magnetron sputtering were detd. for two different types of gas mixts.: CH4/Ar and C2H2/Ar. The compn. and structure of the films were extensively studied. |
