Page 1 of 1
Video - Making MgB2 Superconductors
Posted: Sun May 25, 2008 1:59 pm
by MSimon
Posted: Thu Feb 05, 2009 12:30 pm
by Billy Catringer
The video does not show the necessary annealing steps in the process, but they may be annealing on the fly. Both copper and nickel have the nasty habit of work hardening.
Posted: Thu Feb 05, 2009 1:31 pm
by KitemanSA
Neat video, but this is what American Superconductors calls 1st generation wire. Their 2nd generation wire basically has better properties in all areas.
Of course, AmSC make HTS, (BSCCO, YBCO) not MgB2; though the issues may be the same.
Posted: Thu Feb 05, 2009 5:43 pm
by Billy Catringer
If they are using nickel and copper in the new composites, they have to do some annealing along the way during fabrication. I am surprised that they do not offer some of these with silver cores instead of copper.
Posted: Thu Feb 05, 2009 7:19 pm
by MSimon
MgB has "metalic" mechanical properties and has good neutron resistance. Its neutron resistance could be increased if it was made with pure B11.
Posted: Thu Feb 05, 2009 7:29 pm
by KitemanSA
MSimon wrote:...Its neutron resistance could be increased if it was made with pure B11.
?? Shouldn't that be B10 which can absorb a neutron and remain Boron? Admittedly, I am outside my field here.
Posted: Thu Feb 05, 2009 7:44 pm
by Billy Catringer
Additional note. Silver is itself a good absorber of neutrons and there are some alloys of it that hold up well in nuclear service.
Posted: Thu Feb 05, 2009 8:50 pm
by MSimon
KitemanSA wrote:MSimon wrote:...Its neutron resistance could be increased if it was made with pure B11.
?? Shouldn't that be B10 which can absorb a neutron and remain Boron? Admittedly, I am outside my field here.
Neutron absorption causes lattice defects. The less the better. Thus B11.