Objective
The goal of the project is the development and application of highly adherent CVD diamond (in polycrystalline and nanocrystalline NCD- forms) and diamond like carbon (DLC) coatings on compatible Si3N4 materials.
This ceramic presents a close thermal expansion coefficient to that of diamond, reducing the thermal stresses at the interface, promoting high adhesion strength. CVD diamond/Si3N4 and DLC/Si3N4 materials have a high application potential, its use as biomaterial for surgical implants and medical dev ices being emphasized.
The standard artificial joints are constituted by the UHMWPE/metal bio-tribological system that can be advantageously replaced by smooth DLC or NCD/Si3N4 bio-tribosystems.
This is made by coating a bioactive tough ceramic that enters into the bone, with an ultra-hard biocompatible film with outstanding wear and corrosion resistance. The absence of metallic wear eradicates metallosis. Simultaneously, the reduction of UHMWPE wear will diminish the implant failure probability.
Also, the production of diamond/Si3N4 medical devices for odontologic, orthopaedic and surgical uses, anticipates extended lifetime and resistance to sterilisation procedures. Si3N4 samples are diamond coated by both the microwave plasma chemical vapour deposition ( MPCVD) technique for flat specimens and hot filament (HFCVD) method for complex geometries.
The DLC films are grown by DC or RF magnetron sputtering. Further experiments dealing with friction and wear behaviour of CVD diamond aim the development of dry-running machine elements and metalworking tools that require no pollutant lubrication, with evident environmental benefits.
As cutting tools, CVD diamond/Si3N4 inserts are tested in turning operations with real-time acquisition of cutting forces by dynamometry. The cutting of very hard materials hardmetals, like cemented carbides (WC/Co), with CVD diamond coated Si3N4 inserts, is another goal for this new system.
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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- engineering and technology mechanical engineering tribology lubrication
- natural sciences chemical sciences inorganic chemistry transition metals
- engineering and technology materials engineering coating and films
- engineering and technology industrial biotechnology biomaterials
- engineering and technology materials engineering ceramics
You need to log in or register to use this function
We are sorry... an unexpected error occurred during execution.
You need to be authenticated. Your session might have expired.
Thank you for your feedback. You will soon receive an email to confirm the submission. If you have selected to be notified about the reporting status, you will also be contacted when the reporting status will change.
Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2004-MOBILITY-5
See other projects for this call
Funding Scheme
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.
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
AVEIRO
Portugal
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.