Niobium zlitina in dobavitelj kovin

O čisti kovini niobij (Nb) in niobijeve zlitine

Niobij, znan tudi kot Columbium, je sijoča ​​siva ali srebrna nodularna kovina, ki pri sobni temperaturi ne potemni ali oksidira. Niobij reagira s kisikom in halogeni le pri segrevanju. Niobij je pri visoki temperaturi manj odporen proti koroziji kot tantal. Dušikova kislina ne napada niobija do 100 ° C, vendar agresivno napadena z mešanico dušikove in fluorovodikove kisline. Vroče, koncentrirana klorovodikova, žveplov, fosforne kisline pa jo napadajo, ampak vroče, koncentrirana dušikova kislina ne.

Večina kislin pri sobni temperaturi ne vpliva na niobij. Alkalne raztopine ga napadajo do neke mere pri vseh temperaturah. Zaradi nizkega preseka zajema toplotnih nevtronov, Niobij se uporablja v jedrski industriji. Niobij je mogoče električno segrevati in anodizirati v najrazličnejše barve, zaradi česar je zelo privlačen v industriji nakita. Niobij se dodaja železu ali niklju za proizvodnjo zlitin v vesolju, medicinska in elektronska industrija.

What are the primary uses of Niobium?

Aplikacije: 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?

Da, 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.