Talk:Niobium–titanium

Compound?
I have removed this alloy from the Titanium and Zirconium compound lists. I don't think alloys are generally considered to be compounds. --Dirk Beetstra 18:25, 7 May 2006 (UTC)

Early history
eg When was it discovered ? Rod57 (talk) 15:26, 7 December 2009 (UTC)


 * Article now says 1961 with a ref to a paywalled article. Here is an accessible article/history (Nb-Ti - from beginnings to perfection) - it covers different compositions, and methods to construct and draw the conductors - Rod57 (talk) 11:48, 2 March 2020 (UTC)

Other properties
Resistance in non-SC state : "At 300 K, a superconducting alloy of 53% niobium and 47% titanium has a resistivity of 0.734 μΩ⋅m according to " Specific Heat and Electrical Resistivity of 53%Niobium-47%Titanium Alloy Measured by Subsecond Calorimetric Technique (needs subscription) - Rod57 (talk) 00:15, 17 September 2019 (UTC)

How do properties vary by exact composition
How does eg the critical temperature and critical field, vary by exact composition ? At least some of the superconductive cables use 53% NB, 47% Ti (by weight?) - given the atomic masses (92.9, 47.9) this looks very close to NbTi2 but it is an alloy (rather than an inter-metallic compound). One of the "nearest-neighbor body-centered cubic binary solid-solution alloys" according to Nb-Ti - from beginnings to perfection(p5). Are there grain boundaries in the filaments ? Do grain boundaries affect the SC properties ? - Rod57 (talk) 10:56, 2 March 2020 (UTC)

Mechanical properties - ductility
Nb-Ti's advantage over NbSn is that Nb-Ti is far more ductile allowing it to be used in cables to be wound. Can we give a figure for the ductility, or for the tensile strength, Youngs Modulus etc ? - Rod57 (talk) 10:56, 2 March 2020 (UTC)

temperature of effect
Shouldn't it be mentioned that the superconducting properties are found with temperature below 138 kelvin? Plopfz (talk) 18:06, 3 August 2023 (UTC)