Tantalum
Tantalum is a metal element with Ta, an atomic number of 73, a density of 16.68 g/cm3, and a melting point of 2980 ° C. It is the third most difficult to melt after tungsten and tantalum. Metal.
The pure enamel has a blue color and excellent ductility. It can be rolled into a very thin (less than 0.01 mm) plate without cold annealing in the cold state.
The anti-corrosion ability of niobium is the same as that of glass. At medium temperature (about 150 ° C), only fluorine, hydrofluoric acid, sulfur trioxide (including fuming sulfuric acid), strong alkali and some molten salts have an effect on niobium. The metal ruthenium is stable in air at normal temperature, and heating to above 500 ° C accelerates oxidation to form Ta205. Ta has a series of excellent properties such as high melting point, low vapor pressure, good cold workability, high chemical stability, strong resistance to liquid metal corrosion, and large dielectric constant of surface oxide film. It is used in electronics, metallurgy, steel, chemicals, and hard alloys. High-tech fields such as atomic energy, superconducting technology, automotive electronics, aerospace, medical and scientific research have important applications. At present, the most important application of germanium is tantalum capacitor. In nature, it must be found together with bismuth, which is similar in chemical properties. It is generally found in coltan, coltan and coltan.
Physical properties: The appearance is steel gray, high temperature resistance and corrosion resistance.
Chemical composition of cockroaches
|
Brand |
Impurity content (≤%) |
|
|
Nb |
C |
O |
N |
Fe |
Ni |
W |
|
Ta-1 |
0.01 |
0.02 |
0.2 |
0.01 |
0.01 |
0.005 |
0.003 |
|
Ta-2 |
0.02 |
0.04 |
0.3 |
0.02 |
0.02 |
0.010 |
0.005 |
|
|
Mo |
Si |
Zr |
Al |
Cu |
Cr |
Ti |
|
Ta-1 |
0.003 |
0.02 |
0.003 |
0.003 |
0.003 |
0.005 |
0.003 |
|
Ta-2 |
0.005 |
0.02 |
0.003 |
0.005 |
0.005 |
0.010 |
0.005 |
The main purpose of Tantalum
It is mainly used in bismuth-containing superalloys and bismuth-based heat-resistant and corrosion-resistant alloy additives. It can improve the high temperature performance and corrosion resistance of alloy materials and is widely used in electronics, petroleum, chemical and aerospace industries.
Product specifications: (0.1-1) × (10-300) × (450-1000) mm
Packing: wooden box packaging
