Objective
Sputter deposited molybdum sulphide (MoSx) films were bombarded by 400 keV argon ions to a dose of 10{16} per square centimetre and showed excellent lubrication properties.
The coefficient of friction and wear of different types of steel were investigated after being implanted. Dose, energy and type of ions were varied.
For some implants extremely good results were obtained. For these implants the microstructure was studied by Moessbauer spectroscopy.
Punches, implanted covered with physical vapour deposition (PVD) and chemical vapour deposition (CVD) layers, were tested. Some of the implanted gas between words punches gave a significant increase in lifetime. Polycrystalline copper was implanted with different types of ions and exposed to an atmosphere of water and hydrogen sulphide. For a 5 x 10{17} aluminium ions per square centimetre implanted sample the amount of corrosion products was reduced by a factor of 50 when compared to an unimplanted one. Furthermore ion bombarded photoresist layers showed excellent wear reducing properties.
In this project, ion bombardment for surface property improvement will be studied in two practical applications: electrical contact materials (i.e. conducting materials for printed circuit boards and thin film hybrid circuits) and tool steels for cutting and forming processes. For the contact materials, the objective is to replace noble metals such as AG and AU by implanted CU and/or CU alloys, and also to improve the corrosion resistance of contacts by the implantation of AL, AG and other species. In the case of tool steels, a variety of N, C, C-H and other mixtures is to be examined using laboratory tests and field trials to establish optimum wear resistance.
The ion bombardment experiments are to be supplemented by surface analysis in order that the microstructure of the implanted surface layers may be thoroughly characterised. The ion surface treatment will also include the intermixing of various thin over layers deposited using Ibed and PVD-based techniques. The advantage of using ion bombardment in this case is that the thin surface coating becomes properly integrated with the substrate, which is expected to lead to a marked improvement in corrosion and mechanical properties.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences inorganic chemistry noble gases
- engineering and technology mechanical engineering tribology lubrication
- natural sciences chemical sciences inorganic chemistry post-transition metals
- engineering and technology materials engineering coating and films
- medical and health sciences medical biotechnology implants
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
5600 JM Eindhoven
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.