Niobiumlegering en metaalverskaffer

Oor suiwer niobiummetaal (NB) en niobium legerings

Niobium, Ook bekend as Columbium, is 'n blink grys of silwerige smeebare metaal wat nie by kamertemperatuur beskadig of oksideer nie. Niobium reageer slegs met suurstof en halogene as dit verhit word. Niobium is minder korrosiebestand as tantaal by hoë temperatuur. Niobium word nie aangeval deur salpetersuur tot 100 ° C, maar aggressief aangeval deur mengsel van salpeter- en fluoorsuur. Warm, gekonsentreerde soutsuur, swawelagtige, en fosforsure val dit aan, maar warm, gekonsentreerde salpetersuur nie.

Niobium word by kamertemperatuur nie deur die meeste sure beïnvloed nie. Dit word tot 'n mate by alle temperature deur alkaliese oplossings aangeval. As gevolg van sy lae vang deursnit vir termiese neutrone, Niobium het toepassing in die kernindustrie. Niobium kan elektries verhit en geanodiseer word tot 'n wye verskeidenheid kleure wat dit baie aantreklik maak in die juweliersbedryf. Niobium word by yster of nikkel gevoeg om legerings in die lugvaart te produseer, Mediese en elektroniese bedrywe.

What are the primary uses of Niobium?

Aansoeke: 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.