FABRICATION OF LARGE COMPONENTS BY SPARK PLASMA SINTERING
Spark Plasma Sintering (SPS) is an innovative sintering process that is emerging as a key enabling technology in the processing of numerous advanced materials however up to now the industrial upscaling of the technology has been limited due to the reduced size of the samples attainable and the material heterogeneities resulting in large samples.
The CINN collaborates very closely with companies of different sectors in the development of high-value innovative products based on SPSed materials. This pre-industrial research activity is performed in a dedicated full-equipped facility located in Sotrondio (Spain) the so called "Multifunctional Materials Development Unit".
The Nanomaterials and Nanotechnology Research Center (CINN) has both the experience and a unique preindustrial equipment to perform R&D and small series production of components up to Ø400 mm in size of nanostructured materials, composite materials and gradient materials with tailored microstructures.
The main advantages of Spark Plasma Sintering (SPS) over conventional hot pressing and sintering are:
- Use of lower temperature and mould pressure
- Reduction of cycle times to just a few minutes
- No need for sintering additives
- Fabrication of fully dense sintered components with nanostructures
- Sintering of composites with components that react with each other
- Diffusion bonding of dissimilar materials
Additionally CINN's SPS is a customized unit equipped with a radial, inductive heating system to prevent radial temperature gradients in large-sized components or to facilitate the inductive heating of materials that are otherwise inadequately conductive at room temperature. This taylor-made system is particularly suitable for industrial demonstration activities allowing the production of prototypes with dimensions up to ø400 mm.
- Ceramic armors
- Transparent ceramic windows
- Thermoelectric materials
- Ultrahard cutting tools
- Wear-resistant composite materials
- Nanostructured materials
- High-performance aluminium alloys
- Magnetic materials
Technical cooperation, subcontracting and R+D consultancy.
Development of joint R+D Projects for the adaptation of the SPS technology to the industrial needs.