| 摘要 |
<p>Process for the preparation of a superconductive product based on bismuth, strontium, calcium, copper and oxygen, comprising at least one stabilising element chosen from the group comprising lead, antimony and tin, and characterised in that it comprises the following stages: a - preparation of a solution containing the elements bismuth, strontium, calcium, copper and at least one stabilising element, b - drying the said solution, c - calcination of the dried product in air. A product exhibiting a single transition temperature is thus obtained in a single stage.</p> |
