2 superconductivity and crystalline defects.
Ceramic superconductors price.
The yttrium compound is somewhat unique in that it has a regular crystal structure while the lanthanum version is classified as a solid solution.
The high temperature superconductors are ceramic materials with layers of copper oxide spaced by layers containing barium and other atoms.
Superconductors are classified as type i or type ii.
Mgb 2 costs a few euros per metre versus tens of euros for ceramic.
Humphreys in concise encyclopedia of advanced ceramic materials 1991.
Mgb 2 needs to be chilled below that of a ceramic superconductor which costs more.
Metonboss superconductor laser engraved titanium spinning top made with aerospace grade 5 titanium heat colored purple.
The first high temperature superconductor was discovered in 1986 by ibm researchers bednorz and müller 3 6 who were awarded the nobel prize in physics in 1987 for their important break through in the discovery of superconductivity in ceramic materials.
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The yttrium compound is often called the 1 2 3 superconductor because of the ratios of its constituents.
It turns out that from a technical or performance standpoint a long flexible single crystal like wire of the highly brittle ceramic superconductor is required.
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It has the advantage of being cheaper though.
Many ceramic superconductors physically behave as superconductors of the second type.
The superconductors of technological interest are type ii.
The mystery of ceramic superconductors in action.