Superconductivity (1 Viewer)

[!! CaR`JiE !!]

can someone explain this syllabus dot point?? please?

Process information to identify some of
the metals, metal alloys and compounds that have been
identified as exhibiting the property of
superconductivity and their critical temperatures.

 

[xiao1985]

wrong thread carjie... tis supose to be in phys...
btw ain't u ... already done ur hsc?!

there are type1/type2 super conductors...
type1: heavy metal which has their critical temp at few kelvin
type2: rare earth metal ceramics (eg, ybco, yuttrium, barium, carbon oxygen)
as i recall having significantly higher critical temp and more than one critical temp..

 

[!! CaR`JiE !!]

oh yeh.. hahah.. opps..thx xiaoie..
wonder how to move this thread to phys.. hMMMM..

 

[acmilan]

Metals (Metal and Critical temperature in kelvins)
Tungsten 0.02
Titanium 0.40
Aluminium 1.18
Tin 3.72
Mercury 4.15
Lead 7.19

Metal Alloys
Nb-Ti Alloy 10.2
Nb-Zr Alloy 10.8

Compounds
PbMo₆S₈ 14.0
V₃Ga 16.5
Nb₃Sn 18.3
Nb₃Al 18.9
Nb₃Ge 23.0
YBa₂Cu₃O₇ 92.0
Bi₂Sr₂Ca₂Cu₃O₁₀ 110.0
Tl₂Ba₂Ca₂Cu₃O₁₀ 125.0
HgBa₂Ca₂Cu₂O₈ 153.0