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.

PRESSURE-LESS JOINING OF CERAMIC MATRIX COMPOSITES / Salvo, Milena; Casalegno, Valentina; Rizzo, Stefano; Ventrella, Andrea; S., Novak; K., Handrick; Ferraris, Monica. - ELETTRONICO. - unico:(2012), pp. 1-8. ((Intervento presentato al convegno 15th European Conference on Composite Materials tenutosi a Venice nel 24-28 June 2012.

PRESSURE-LESS JOINING OF CERAMIC MATRIX COMPOSITES

SALVO, Milena;CASALEGNO, VALENTINA;RIZZO, STEFANO;VENTRELLA, ANDREA;FERRARIS, Monica
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.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2499242
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo