FIELD: process engineering.
SUBSTANCE: invention relates to production of composite laminar tubes and may be used for high-temperature electrochemical devices, say, solid-oxide fuel cells. Inner tubular structure and outer tubular structure are moulded. Note here that outer tubular structure features larger radial shrinkage in free sintering compared with inner structure. One of said structures comprises ceramic material while another one includes metal. Outer tube is arranged concentric with and above inner tube. Said structures are sintered so that outer tube shrinks radially to mechanically joint with inner structure to make composite laminar tubular structure.
EFFECT: tubular structures made up of several concentric different-properties layers.
21 cl, 7 dwg, 1 tbl, 1 ex
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