Terbium Metal
E-mail： sales@shxlchem.com
Introduction
Formula: Tb
CAS No.: 7440-27-9
Molecular Weight: 158.93
Density: 8.219 g/cm3
Melting point: 1356 °C
Appearance: Silvery grey ingot, rods, foils, slabs, tubes, or wires
Stability: Stable in air
Ductibility: Medium
Multilingual: Terbium Metall, Metal De Terbium, Metal Del Terbio
Terbium Metal is the important additive for NdFeB permanent magnets to raise the Curie temperature and improve temperature coefficiency. Another most promising use of distilled Terbium Metal, code 6563D, is in the magnetostrictive alloy TEFENOL-D. There are also other applications for some special master alloys. Terbium is primarily used in phosphors, particularly in fluorescent lamps and as the high intensity green emitter used in projection televisions. Terbium Metal can be further processed to various shapes of ingots, pieces, wires, foils, slabs, rods, discs and powder.
Certificate of Analysis
| Product Code | 6563D | 6563 | 6565 | 6567 |
| Grade | 99.99%D | 99.99% | 99.9% | 99% |
| CHEMICAL COMPOSITION | ||||
| Tb/TREM (% min.) | 99.99 | 99.99 | 99.9 | 99 |
| TREM (% min.) | 99.9 | 99.5 | 99 | 99 |
| Rare Earth Impurities | ppm max. | ppm max. | % max. | % max. |
| Eu/TREM Gd/TREM Dy/TREM Ho/TREM Er/TREM Tm/TREM Yb/TREM Lu/TREM Y/TREM | 10 20 30 10 10 10 10 10 10 | 10 20 50 10 10 10 10 10 10 | 0.03 0.03 0.05 0.03 0.03 0.005 0.005 0.005 0.01 | 0.01 0.5 0.3 0.05 0.03 0.01 0.01 0.01 0.03 |
| Non-Rare Earth Impurities | ppm max. | ppm max. | % max. | % max. |
| Fe Si Ca Al Mg W Ta O C Cl | 200 100 200 100 100 100 50 300 100 50 | 500 100 200 100 100 100 100 500 100 50 | 0.15 0.01 0.1 0.05 0.05 0.1 0.01 0.2 0.01 0.01 | 0.2 0.02 0.2 0.1 0.1 0.2 0.05 0.25 0.03 0.02 |