Construction with high Tc superconductor material and process for producing the construction

The invention relates to a construction including a metal-oxide high T superconductor material, whose parts include at least a substrate made from an electrically insulating material, the coefficient of thermal expansion of which is matched to that of the superconductor material, an intermediate layer arranged on the substrate, at least one buffer layer which has been deposited on the intermediate layer and a layer of the superconductor material which has been deposited on the buffer layer. The invention also relates to a process for producing a corresponding superconductor construction. A construction of this general type and a corresponding production process are to be found in European Patent Specification 0,312,015 B. A superconductor structure is disclosed, comprising a composite body made of an electrically insulating substrate to which an intermediate layer is bonded, a buffer layer is deposited on the intermediate layer and a layer of a metal-oxide high Tsuperconductor material is deposited on the buffer layer. The intermediate layer comprises a glass material with a coefficient of thermal expansion greater than 6×10K. To produce the structure, at least one deposition process is selected in which the maximum temperature is at most 150 K higher than the transformation temperature of the glass material.