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

摘要

Process for the moderately refractory assembly of at least two articles made of silicon carbide-based materials by non-reactive brazing in an oxidizing atmosphere, in which the articles are placed in contact with a non-reactive brazing composition and the assembly formed by the articles and the brazing composition is heated in an oxidizing atmosphere at a brazing temperature sufficient to melt the brazing composition so as to form a moderately refractory joint, wherein the non-reactive brazing composition is a composition A composed of silica (SiO₂), alumina (Al₂O₃) and calcium oxide (CaO), or alternatively a composition B composed of alumina (Al₂O₃), calcium oxide (Cao) and magnesium oxide (MgO).;Brazing suspension, paste comprising a powder of said brazing composition and an organic binder.;Refractory joint and assembly.