%0 Generic
%A Moutis, N. V.
%A Jimenez, C.
%A Speliotis, T.
%A Azpiroz, X.
%A Mergia, K.
%T Graphite-nimonic alloy brazing
%J Advanced Materials Research
%D 2009
%@ 1022-6680
%U https://hdl.handle.net/11556/2700
%X A graphite sheet has been successfully brazed to a Nimonic 105 superalloy using a commercial TiCuSil paste. A chromium layer was deposited on the graphite surface by sputtering and controlled heat treatments were employed in order to develop a suitable microstructure. Scanning electron microscopy measurements showed rough, crack-free interfaces between the filler metal and both the graphite and nimonic parts. From metallographic examination a well defined layered structure of the metallic elements close to the filler/graphite interface has been found. The metallic elements transport from the interface to the carbon bulk where they fill all the graphite pores up to a depth up of 50 μrn and form a layered structure within the pores.
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