Method for joining ceramic bodies by means of an active hard solder using a solder stop, assembly comprising at least two joined ceramic bodies, in particular pressure measuring cell

The invention relates to an assembly comprising: a first and a second ceramic body (1, 2) connected by means of a joint that has an active hard solder (5), said active hard solder (5), when averaged over a cohesive main volume comprising at least 50% of the volume of the joint, has an average compos...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PONATH NILS, SCHMIDT ELKE, ROSBERG ANDREAS
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING LIME, MAGNESIA MACHINE TOOLS MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS PHYSICS REFRACTORIES SLAG SOLDERING OR UNSOLDERING TESTING TRANSPORTING TREATMENT OF NATURAL STONE WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The invention relates to an assembly comprising: a first and a second ceramic body (1, 2) connected by means of a joint that has an active hard solder (5), said active hard solder (5), when averaged over a cohesive main volume comprising at least 50% of the volume of the joint, has an average composition CH with a liquidus temperature TI(CH). According to the invention, a border region of the joint, said region touching at least one of the ceramic bodies (1, 2), has an average composition CR with a liquidus temperature TI(CR), said temperature lying no less than 20 K, preferably no less than 50 K, and especially preferably no less than 100 K above the liquidus temperature TI(CH) of the average composition CH of the main volume.