Objective
1.To determine the surface reactivity of silicon nitride matrices and corresponding silicon nitride-silicon carbide composites in environments representative of fossil fuel conversion systems.
2.To determine how the presence of impurities such as sulphur vapour, sulphur dioxide and chlorine within the corrosion environment affects the surface reactivity of silicon nitride and silicon nitride-silicon carbide composites.
3.To elucidate the mechanisms of high temperature chemical degradation in corrosive environments, which contain either oxygen or sulphur or chlorine.
4.To optimise the composition of composites in terms of additive and silicon carbide content for use in aggressive situations.
The main results obtained from the work performed are summarized as follows:
a. A qualitative rating of the structure damage tolerance behaviour can be established based on the rating of materials obtained at the coupon level. Therefore a linking line between the basic properties of the composites matrices and the damage tolerance properties of detailed specimens was developed (CASA, LBF, Uni. of Leoben).
b. Several new testing techniques were developed and implemented during the work:
- Mixed Mode bending (Mode I/Mode II) for coupon testing (Univ. of Leoben).
- Microscopy method for determining delamination growth under fatigue (CASA, Un. of Leoben).
- Method to correlate the delamination growth and the change of compliance to derive the crack propagation growth and the crack propagation growth (LBF).
c. A computer program called IMPACT was developed. The program allows to calculation of the number of cycles needed for a fixed growth of the determination, or the reached size of a delamination after a fixed number of cycles in a laminate (LBF, CASA). This prediction method is applicable if there is sublaminate buckling. CASA and LBF are trying to introduce empirical factors that can allow the use of the use of the program for structures.
This model will use the laminate plate theory, the stability theory and fracture mechanics method, and needs an iterative process. The necessary input data would be obtained from standard compression after impact test samples.
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.
- engineering and technology materials engineering composites
- natural sciences chemical sciences inorganic chemistry inorganic compounds
- natural sciences chemical sciences inorganic chemistry halogens
- engineering and technology environmental engineering energy and fuels
- natural sciences chemical sciences inorganic chemistry metalloids
You need to log in or register to use this function
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.
Data not available
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.
Data not available
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
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.
Data not available
Coordinator
28906 GETAFE
Spain
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.