Objective
The nonoxide technical ceramics of the silicon carbide and silicon nitride groups have been developed specifically for a number of high temperature applications, of which gas turbine engine components and heat exchangers provide 2 well studied examples. In these and similar applications the materials are exposed to substances, already well known in the metallurgical area, likely to cause accelerated oxidation through interaction with protective oxide films. 2 examples are sodium sulphate and vanadium pentoxide. For this reason considerable effort has been put into studying silicon nitride based materials in oxidising environments at high temperature in the presence of fluxing metal salts and oxides.
Chemical stability is determined by 2 sets of factors, the thermodynamic and the kinetic, which must be examined separately.
Specific aspects in the present context are :
the thermodynamic stability at high temperature of a system prepared by equilibration under conditions of low oxygen potential but now exposed to a high oxygen potential;
the rate at which a new state of equilibrium can be attained, initially at least at the surface of the material.
Because of the importance of silicon dioxide, as the primary oxidation product for the corrosion process, this material is examined first.
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 inorganic compounds
- natural sciences chemical sciences electrochemistry electrolysis
- natural sciences chemical sciences inorganic chemistry transition metals
- natural sciences chemical sciences inorganic chemistry metalloids
- engineering and technology materials engineering ceramics
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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)
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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
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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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
LS2 9JT LEEDS
United Kingdom
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.