Patent ID: 7462255

Claim:
A method for producing gastight and high-temperature resistant connection of shaped parts, the parts made of a non-oxidic ceramic, comprising: providing solder at a joint area at surfaces of the shaped parts to be joined, the solder comprising at least one of 80-30% by weight yttrium oxide and 55-15% by weight zirconium oxide, 5-70% by weight aluminum oxide, 0-50% by weight silicon dioxide and 0-10% by weight silicon, and having a melting temperature; and subsequently raising a temperature at the joint area above the melting temperature of the solder by a laser, without presence of a protective gas atmosphere or a vacuum, to melt the solder and obtain sufficient wettability for connection of the surfaces to be joined by the melted solder by silicon dioxide, the silicon dioxide comprises at least one of silicon dioxide that originates from the ceramic, silicon dioxide that originates from the solder, silicon dioxide that is formed through oxidation with atmospheric oxygen of SiO that evaporates, and silicon dioxide that is applied to the joint area.