Process for the moderately refractory assembling of articles made of SiC-based materials by non-reactive brazing in an oxidizing atmosphere, brazing compositions, and joint and assembly obtained by this process

A process for moderately refractory assembly of at least two articles made of silicon carbide-based materials by non-reactive brazing in an oxidizing atmosphere, the process consisting of:

• placing the at least two articles in contact with a non-reactive brazing composition to form an assembly;
• and
• heating the assembly formed by the at least two articles and the non-reactive brazing composition under an oxidizing atmosphere to a brazing temperature that is sufficient to melt the non-reactive brazing composition in order to form a moderately refractory joint,
• wherein said oxidizing atmosphere remains present during said melting of the non-reactive brazing composition, and
• wherein, the non-reactive brazing composition is a composition A consisting of silica (SiO2), alumina (Al2O3) and calcium oxide (CaO) and optionally an addition of titanium oxide or an addition of boron oxide or both, or alternatively a composition B consisting of alumina (Al2O3), calcium oxide (CaO) and magnesium oxide (MgO) and optionally an addition of titanium oxide or an addition of boron oxide or both.