Terbium Metal Tb CAS 7440-27-9 For Magneto-optical Recording Material

Terbium is rare in nature, mainly in minerals such as monazite sand. Its compounds can be used to manufacture efficient phosphors as green activators in tricolor phosphors, which emit green light in the excited state and improve the display effect. In addition, terbium is also widely used in magneto-optical storage materials, such as Tb-Fe amorphous films, for magneto-optical discs, significantly improving the storage capacity of computer memory components.
In the medical field, terbium also plays an important role, used to enhance the sensitivity of X-ray film, improve the accuracy of diagnosis. At the same time, Faraday rotatory glass containing terbium is the manufacturing material of key equipment such as rotator and isolator in laser technology. Terbium dysprosium ferromagnetostriction alloy (TerFenol) has opened up a new use of terbium, its size in the magnetic field is very variable, is widely used in the field of precision machinery control.

product details

Terbium Metal Tb CAS 7440-27-9 For Magneto-optical Recording Material

Name: Terbium metal, distillation Terbium

Molecular formula: Tb

CAS: 7440-27-9

Molecular weight: 158.93

Description

Terbium can be made into various forms: Terbium Foil, Terbium block, Terbium sheet, Terbium powder, Terbium sputtering target. Terbium and other rare earth elements coexist in monazite sand, and the content of terbium is generally 0.03%. Other sources are yttrium phosphate ore and black rare gold ore, both of which are oxide mixtures, containing up to 1% terbium, a small amount of which is found in the phosphorous cerium thorium sand and the silicon beryllium yttrium ore. Terbium is a soft and malleable silver gray rare earth metal. It is easy to be corroded by air at high temperature and very slow at room temperature. Soluble in acid, salt is colorless.

Specification

Name		Tb_4N	Tb_3N	Tb_2N5
Molecular formula		Tb	Tb	Tb
CAS		7440-27-9	7440-27-9	7440-27-9
Total rare earth TREM	%	≥99.0	≥99.0	≥99.0
Tb/TREM	%	≥99.99	≥99.90	≥99.50
Total rare earth impurities	%	≤0.01	≤0.10	≤0.50
Fe	%	≤0.02	≤0.05	≤0.1
Si	%	≤0.01	≤0.03	≤0.06
C	%	≤0.01	≤0.02	≤0.03
Property		As-cast or crystalline, silver-gray luster
Application area		Additives for giant magnetostrictive alloys, magneto-optical recording materials, neodymium-iron-boron alloys and non-ferrous metal alloys
Package		Anti-oxidation measures sealed packaging, flexible packaging according to customer needs

Packing: Under Argon atmosphere or vacuum packaging, 25kg or 50kg per bag, also provide small package: 100g, 500g, 1kg, 5kg and other small packaging.

Used

The rotatory Glass Containing Terbium is the key material to manufacture rotator, isolator and circulator widely used in laser technology. Among the magneto-optical storage materials, the terbium magneto-optical materials have reached the scale of mass production. The storage capacity of the magneto-optical disk made of TB Fe amorphous film is increased by 10-15 times as a computer storage element.