Question

First measured critical temperature in a ceramic superconductor

Answer 1

In 1986, it was discovered that some cuprate-perovskite ceramic materials have a critical temperature above 90 K(−183 °C). Such a high transition temperature is theoretically impossible for a conventional superconductor, leading the materials to be termed high-temperature superconductors.

Answer 2

Answer:

In 1986

Explanation:

Superconductivity is a set of physical properties observed in certain materials where electrical resistance vanishes and magnetic flux fields are expelled from the material. Any material exhibiting these properties is a superconductor.