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EnglishA critical issue for a wider use of Ceramic Matrix Composites (CMC) is the development of cheap, user-friendly joining methods to assemble large components into more complex structures, but also to repair damaged parts after mission. Some pressure-less joining techniques and joining materials for CMC will be described: results obtained by using glass ceramics, modification of a commercial adhesive and W/SiC based joining materials will be discussed. Different kinds of joined samples have been manufactured to couple the reliability of a machined joint with bonding properties of the joining materials. The mechanical characterization of the joints will be also discussed. The use of glass-ceramics as joining materials in a neutron environment has been demonstrated up to 820°C, 5 dpa: comparison of bending and shear strength for neutron irradiated and non-irradiated glass-ceramic joined SiC and SiC/SiC indicates that the mechanical strength is unaffected by irradiation at the used irradiation conditions.
| Titolo: | PRESSURE-LESS JOINING OF CERAMIC MATRIX COMPOSITES |
| Autori: | |
| Data di pubblicazione: | 2012 |
| Abstract: | A critical issue for a wider use of Ceramic Matrix Composites (CMC) is the development of cheap, ...user-friendly joining methods to assemble large components into more complex structures, but also to repair damaged parts after mission. Some pressure-less joining techniques and joining materials for CMC will be described: results obtained by using glass ceramics, modification of a commercial adhesive and W/SiC based joining materials will be discussed. Different kinds of joined samples have been manufactured to couple the reliability of a machined joint with bonding properties of the joining materials. The mechanical characterization of the joints will be also discussed. The use of glass-ceramics as joining materials in a neutron environment has been demonstrated up to 820°C, 5 dpa: comparison of bending and shear strength for neutron irradiated and non-irradiated glass-ceramic joined SiC and SiC/SiC indicates that the mechanical strength is unaffected by irradiation at the used irradiation conditions. |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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http://hdl.handle.net/11583/2499242
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