Lanthanum Metal (La)-Sputtering Target
Characteristic
The lanthanum sputtering target is a solid target composed of high purity lanthanum metal. Lanthanum is a chemical element with the symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Lanthanum is traditionally counted among the rare earth elements. Like most other rare earth elements, the usual oxidation state is +3. Lanthanum has no biological role in humans but is essential to some bacteria. It is not particularly toxic to humans but does show some antimicrobial activity.
| Phase at STP: | Solid |
| Melting point: | 1193 K (920 °C, 1688 °F) |
| Boiling point: | 3737 K (3464 °C, 6267 °F) |
| Density (near r.t.): | 6.162g/cm3 |
| When liquid (at m.p.): | 5.94g/cm3 |
| Heat of fusion: | 6.20 kJ/mol |
| Heat of vaporization: | 400 kJ/mol |
| Molar heat capacity: | 27.11 J/(mol·K) |
Chemical Composition
|
Rare Earth Impurity(≤) |
La/RE |
≥99.5% |
||||
|
Item |
Ce/RE |
Pr/RE |
Nd/RE |
Sm/RE |
Y/RE |
…… |
|
Content(%) |
0.012 |
0.02 |
0.02 |
0.01 |
0.001 |
…… |
|
Non-Rare Earth Impurity(≤) |
RE |
≥99% |
||||
|
Item |
Fe |
Si |
Ca |
Mg |
Al |
C |
|
Content(%) |
0.12 |
0.018 |
0.01 |
0.01 |
0.025 |
0.043 |
Application
The lanthanum sputtering target is used for thin film deposition, decoration, semiconductor, display, LED and photovoltaic devices, functional coating as nicely as other optical information storage space industry, glass coating industry like car glass and architectural glass, optical communication, etc.
Major applications of lanthanum include:
An alloying agent for steels and cast irons.
Hybrid car batteries.
In cigarette lighter flints in the form of Mischmetal (an alloy primarily consisting of cerium and lanthanum).
Carbon arc lighting used in mation pictures, studio lighting and projection.
Package
Vacuum packing.
