METHOD OF LOW-DEFORMING DIFFUSION WELDING OF ELEMENTS MADE FROM SINTERED NON-OXIDE CERAMICS AND WORKPIECE MADE FROM NON-OXIDE CERAMICS WITH SEAMLESS JOINT

摘要

FIELD: welding jobs.;SUBSTANCE: invention can be used for jointing ceramic elements made from sintered non-oxide ceramics. The elements are brought in contact and jointed by diffusion welding in a low-deforming way, in the presence of protective gas and with a forced applied to form a monolith. Welding temperature makes at least 1600°C, preferably, over 1800°C, most desirable, over 2000°C. The method makes the elements to be jointed subjected to plastic strain less that 5%, and preferably less than 1%.;EFFECT: producing seamless monolith with shape complying with that of finished workpiece that allows rejecting subsequent mechanical processing.;19 cl, 7 dwg, 6 ex