Objective
A silicon nitride (Si3N4) powder has been developed which produces high hardness, high density, and characteristic fracture toughness, if densified by hot isostatic pressing and using low level 1% to 3% sintering aid. If the sintering aid level was raised to 5%, then over-pressure sintering in the powder bed can achieve near theoretical energy density.
TO ACCELERATE THE SINTERING OF SILICON NITRIDE PARTS, SINTER ADDITIVES MUST BE ADDED BUT THESE LIMIT MECHANICAL STRENGTH AND DECREASE HIGH TEMPERATURE PROPERTIES DUE TO THE FORMATION OF GLASSY PHASES. TO EXCLUDE SUCH NEGATIVE EFFECTS THE SINTERING OF SI3N4 HAS IDEALLY TO BE MADE WITHOUT SINTER AGENTS, IN WHICH CASE SOME OTHER METHOD OF INCREASING THE CHEMICAL REACTIVITY OF SI3N4 HAS TO BE FOUND.
ONE SOLUTION IS TO USE VERY FINE, SUB-MICRON SIZE POWDER PRODUCED BY CHEMICAL DEPOSITION OF ORGANOMETALLIC SILICON COMPOUNDS.
THE OBJECTIVE OF THIS PROJECT IS TO PRODUCE SI3N4 POWDER IN A REPRODUCIBLE MANNER WITH SPECIFIC CHARACTERISTICS BY A NEW ROUTE USING ORGANOMETALLIC SILICON COMPOUNDS IN ORDER TO OBTAIN ULTRA-DENSE SI3N4 CERAMICS WITH MUCH IMPROVED MECHANICAL PROPERTIES AT HIGH TEMPERATURE COMPARED TO CURRENTLY AVAILABLE MATERIAL.
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 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)
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.
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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
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
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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.
Coordinator
ST4 7LQ STOKE-ON-TRENT
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.