. . . . . . . . . .    ANM 2010     3rd International Conference on Advanced Nano Materials     12-15 September 2010 - Agadir, Morocco Back    Abstract ANMM304 NANOCRYSTALLINE DIAMOND COATINGS FOR MECHANICAL SEALS APPLICATION J. A. Santos (1), V.F. Neto (1), D. Ruch (2), J. Grácio(1) (1) Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal (2) Department of Advanced Materials and Structures, Centre de Recherche Public Henri Tudor, 66, rue du Luxembourg, L-4002 Esch/Alzette, Luxembourg . A mechanical seal is a type of seal used in rotating equipment, such as pumps and compressors. It consists of a mechanism which promote the connection of systems or mechanisms, preventing leakage or excluding contamination. A common cause of failure of these devices is there end face wear out, thus the use of a hard, smooth and wear resistant coating such as nanocrystalline diamond would be of great importance to improve their working performance. In this paper, a review of the different approaches used to improve the diamond coating characteristics has been presented. Before this, the major problems hindering rotary seals, namely the successful nucleation and growth of diamond on the seals base materials and a layout criteria for possible interlayer selection to give optimum results in producing adherent diamond coatings are highlighted. Finally, the paper presents the challenges that need to be met, which relate to the successful implementation of diamond coatings on the working components. . © nanoAC . . . . . . . . . .

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