Obiettivo
Self Lubricating Metal and Ceramic Matrix Nan Composites are materials consisting of a metal or harts off matrix with dispersed self-lubricating Nan particles. Fun Piston/Liner systems the matrix may be a refractory metal like tungsten, molybdenum and chromium or a carbide or nitride of these metals or titanium, etc. The solid lubricant would be graphite, disulfide, h-BN, etc. SLMCMNCs have so far never been synthesized and there exists no process technology frothier synthesis. Self-lubricating Nan composites with a lubricant matrix (DLC) and carbide (WC, B4C) inclusions are state of the art since 15 years. They are produced by a P&CVD method on a large scale. SelflubricatingMetal and Ceramic Matrix Micro Composites are state of the art since at least a century. They are produced by filling (Sic/C), sintering and casting (e.g. grey cast iron, Pub/PTFE, Cusp, Alan, etc), galvanic & electrolessdeposition (Ni/PFE), plasma spraying (alloy + Moss, PTFE). They are used for gliding seals. The technologies used for self-lubricating microcomp.can not be used for non-com. for workers hygiene reasons, since they would involve handling of large quantities of powders of nanosizedparticles, which are a clear health risk. The state of the art PVD or CVD methods have failed so far in producing such non-com. (with the exception of Asian), since these technologies usually do not produce bi-phasematerials. In NAPILIS project two solutions will be explored:
1.sputter deposition process, combining the selection of inappropriate metallurgy with the use of extremely short (mess) intense heat spikes to promote the appropriate segregation.
2. In a combined arc+ sputter process, strong particle-particle emission from a graphite source will be obtained. SLMCMNCs will be then applied to Piston/Liner systems with the objective to have an high performance sealing giving an important contribution to clean and resource efficient IC engines.'
Campo scientifico
- engineering and technologymechanical engineeringtribologylubrication
- engineering and technologymaterials engineeringcomposites
- natural scienceschemical sciencesinorganic chemistrytransition metals
- engineering and technologymaterials engineeringcoating and films
- engineering and technologymaterials engineeringnanocomposites
Parole chiave
Argomento(i)
Invito a presentare proposte
FP6-2002-NMP-1
Vedi altri progetti per questo bando
Meccanismo di finanziamento
STREP - Specific Targeted Research ProjectCoordinatore
ORBASSANO (TO)
Italia