RT Journal Article
T1 Joining of C f/SiC ceramics to Nimonic alloys
A1 Jiménez, C.
A1 Mergia, K.
A1 Moutis, N. V.
A1 Azpiroz, X. A.
A1 Wilhelmi, Ch
A1 Speliotis, Th
A1 Messoloras, S.
AB C f/SiC ceramic composites have been brazed to Nimonic alloys using TiCuAg filler metal. In order to improve wettability and to provide compatibility between ceramic and metal, the C f/SiC surface was metallized through the deposition of a chromium layer. Subsequent heat treatments were carried out to develop intermediate layers of chromium carbides. Excellent wetting of both the composite ceramic and the metal from the filler metal is observed in the fabricated joints. Shear tests show that failure occurs always within the ceramic material and not at the joint. In the filler region depletion of Ti and formation of Ag and Cu rich regions are observed. At the C f/SiC-filler interface a layered structure of the filler metallic elements is observed. Titanium interacts with the SiC matrix to form carbides and silicides.
SN 1059-9495
YR 2012
FD 2012-05
LK https://hdl.handle.net/11556/3323
UL https://hdl.handle.net/11556/3323
LA eng
NO Jiménez , C , Mergia , K , Moutis , N V , Azpiroz , X A , Wilhelmi , C , Speliotis , T & Messoloras , S 2012 , ' Joining of C f /SiC ceramics to Nimonic alloys ' , Journal of Materials Engineering and Performance , vol. 21 , no. 5 , pp. 683-689 . https://doi.org/10.1007/s11665-012-0183-6
NO This work has been carried out within the framework of the Integrated European Project ‘‘ExtreMat’’ (contract NMP-CT-2004-500253) with financial support by the European Community. The paper only reflects the views of the authors and the European Community is not liable for any use of the information contained therein.
DS TECNALIA Publications
RD 31 jul 2024