Method for producing a multipart construction and such a construction

A method for manufacturing a multipart assembly of sintered oxide ceramic material, such as partially stabilized zirconia, comprising one first component (10, 22, 30, 144), which at least partially surrounds one second component (12, 26, 32, 141), such that detaching the first component from the second component is impossible without destroying the first and/or second component, comprising the steps of:

• producing a single-part first shaped part (110, 122, 130, 44) and a single-part second shaped part (112, 126, 132, 41) from an oxide ceramic blank, whereby the first shaped part and the second shaped part are enlarged—relative to the first component (10, 22, 30, 144) and the second component (12, 26, 32, 141)—by a scaling factor that compensates for shrinkage during sintering,
• completely sintering the second shaped part to produce the second component, and
• assembling the second component with the first shaped part and subsequently sintering them together,
• wherein as the first shaped part (110, 122, 130, 44) one employs a shaped part with an opening, whose effective cross section after sintering is either smaller than the effective cross section of the second shaped part after sintering in a region that extends within the first component, or is smaller that the effective cross section of the second component in front of and behind the opening.