Niobium Alloy & Metal Leverandør

Om rent niobiummetal (Nb) og Niobiumlegeringer

Niobium, også kendt som Columbium, er et skinnende gråt eller sølvfarvet duktilt metal, der ikke pletter eller oxiderer ved stuetemperatur. Niob reagerer kun med ilt og halogener, når det opvarmes. Niob er mindre korrosionsbestandigt end tantal ved høj temperatur. Niob er ikke angrebet af salpetersyre op til 100 ° C, men aggressivt angrebet af blanding af salpetersyre og flussyre. Hed, koncentreret saltsyre, svovlsyre, og fosforsyrer angriber det, men varmt, koncentreret salpetersyre ikke.

Niob påvirkes ikke ved stuetemperatur af de fleste syrer. Det angribes af alkaliske opløsninger til en vis grad ved alle temperaturer. På grund af dets lave indfangningstværsnit for termiske neutroner, Niobium har anvendelse i den nukleare industri. Niob kan opvarmes elektrisk og eloxeres til en bred vifte af farver, der gør det meget attraktivt i smykkeindustrien. Niob sættes til jern eller nikkel for at producere legeringer i luftrummet, medicinske og elektroniske industrier.

What are the primary uses of Niobium?

Applikationer: used in aerospace applications (i.e. rocket boosters), sodium vapor lamps, and superconductors. Niobium is used in the manufacture of synthetic diamonds; in sputtering targets for fiber optic applications or architectural glass; in nickel based superalloys; and alloyed with titanium or tin, in superconductors. In nuclear reactors it has low thermal neutron cross section and superior corrosion resistance, It is an excellent getter and finds use in high temperature vacuum furnaces, and is resistant to attack by the molten alkali metals found in sodium vapor lamps.

How does Niobium benefit steel production?

At atmospheric pressure, it has the highest critical temperature of the elemental superconductors. Niobium has the largest magnetic penetration depth of any element. High-energy physics researchers use some electron accelerators that include chambers cast from pure or alloyed niobium.

What medical applications does Niobium have?

Niobium is used as an alloying agent and for jewelry. Other uses include adding small amounts to improve stainless steel, as an alloying agent in carbon and alloy steels and in non-ferrous metals to improve strength. It is key element in manufacturing jet engines and rockets.

Is Niobium a refractory metal?

Ja, Niobium is malleable, weldable, machinable and formable.

What superconductor applications is Niobium well suited for?

When chilled to near absolute zero, these niobium chambers become both highly magnetic and superconducting, which permits researchers to increase the speed of subatomic particles without using increasing amounts of electricity.