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High-temperature superconductivity (high-T c or HTS) is superconductivity in materials with a critical temperature (the temperature below which the material behaves as a superconductor) above 77 K (−196.2 °C; −321.1 °F), the boiling point of liquid nitrogen. [1]
In October 2020, they reported room-temperature superconductivity at 288 K (at 15 °C) in a carbonaceous sulfur hydride at 267 GPa, triggered into crystallisation via green laser. [ 25 ] [ 26 ] This was retracted in 2022 after flaws in their statistical methods were identified [ 27 ] and led to questioning of other data.
Due to quantum mechanics, the energy spectrum of this Cooper pair fluid possesses an energy gap, meaning there is a minimum amount of energy ΔE that must be supplied in order to excite the fluid. Therefore, if Δ E is larger than the thermal energy of the lattice, given by kT , where k is the Boltzmann constant and T is the temperature , the ...
The table below shows some of the parameters of common superconductors.X:Y means material X doped with element Y, T C is the highest reported transition temperature in kelvins and H C is a critical magnetic field in tesla.
MC and M 23 C 6 (M = metal) carbides are the strengthening phase in the absence of γ'. B,Zr 0-0.1% Boron and zirconium provide strength to grain boundaries. This is not essential in single-crystal turbine blades, because there are no grain boundaries. Nb 0-5% Nb can form γ'', a strengthening phase at lower (below 700 °C) temperatures.
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A Hole In Texas is a 2004 novel by Herman Wouk, which describes the adventures of a high-energy physicist following the surprise announcement that a Chinese physicist had discovered the long-sought Higgs boson. Parts of the plot are based on the aborted Superconducting Super Collider project. [citation needed]