Method material parts assembly SiC by non-reactive brazing solder compositions, and joint and assembly obtained by such process.

A method of assembling at least two parts in silicon carbide based materials by non reactive brazing, wherein parts with a composition of non-reactive brazing is brought into contact, the assembly formed by the parts is heated and the braze composition to a sufficient brazing temperature to melt completely or at least partially the brazing composition, and cooled and the brazing composition to form after solidification thereof a moderately refractory refractory gasket; wherein the non reactive brazing composition is an alloy comprising, in atomic percentages, from 45% to 65% silicon, 28% to 45% nickel and 5% to 15% aluminum. solder composition as defined above. Paste, suspension, solder comprising a powder of said brazing composition and an organic binder. And seal assembly obtained by said method.