Design of competitive light-weight composite materials: SiC/TiSi2
| Main Authors: | Giuranno Donatella, Novakovic Rada, Nowak Rafal, Petrin Dmytro, Polkowski Wojciech, Homa Marta, Bruzda Grzegorz, Kudyba Artur, Narciso Javier, Sobczak Natalia |
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| Format: | Proceeding poster |
| Bahasa: | eng |
| Terbitan: |
, 2018
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| Online Access: |
https://zenodo.org/record/3668104 |
Daftar Isi:
- POSTER PRESENTATION Thermo-mechanical resistant light-weighting materials open new frontiers in designing and assembling transportation systems, from ground to space (aircraft, high-speed trains, satellites, etc). Currently, few and no-commercial new materials are suitable for such kind of highly demanding applications. To find less-costly alternatives, R&D is highly focused on advanced refractories and composites, i.e. MMC and CMC-types where the metal phase is an Al, Si or Ti-based alloy and SiC the reinforcement. Reactive Infiltration processes have well known advantages over other conventional sintering and hot-pressing techniques, i.e. lower processing temperatures, shorter times and near-net shape fabrication capabilities. Many aspects are not fully understood related to interfacial phenomena occuring during the infiltration process, making difficult both to decrease the unreacted Si (affecting thermo-mechanical resistance) and to “control” the “pore closure” phenomenon. The ad-hoc selection of a Si-Me alloy as infiltrating phase of C- or SiC/C-preforms to obtain a SiC/Me-Silicide composite with improved thermo-mechanical properties is one of the winning strategies. Key contributions could be coming from know-how on wetting characteristics, reactivity, surface properties and thermodynamics concerning reacting phases. Aiming to successfully fabricate SiC/TiSi2 composite by reactive infiltration, an all-round investigation on thermodynamics, wettability and infiltration of Si-Ti/C and Si-Ti/SiC couples is on going in the framework of “SIC-WIN: Reactivity of SI-alloy/C-material system: Wetting vs Infiltration" Project, H2020-MCSA, POLONEZ-3 and some results are here presented.
- The NCN-National Science Center, Poland is greatly acknowledged for the financial support through the POLONEZ project number UMO-2016/23/P/ST8/01916. This project was carried out under POLONEZ-3 program which has received funding from European Union's Horizon 2020 research and innovation program under Marie Skłodowska-Curie grant agreement. No 665778.