The Meissner Influence demonstrated by levitating a magnet over a cuprate superconductor, that is cooled by liquid nitrogen Under some conditions, such as really very low temperatures, some ceramics exhibit high-temperature superconductivity (in superconductivity, "high temperature" indicates above thirty K). The rationale for this isn't recognized, but There are 2 https://dnaextractionreagent16981.shotblogs.com/helping-the-others-realize-the-advantages-of-silicon-carbide-ceramic-columns-53180596