Lanthanum Hexaboride Disc Description
Lanthanum Hexaboride Disc (LaB6 Disc, also called lanthanum boride and LaB6) is an inorganic chemical. With melting point 2528 K, LaB6 is a refractory ceramic material, which is highly insoluble in water and converts to oxide when heated (calcined), and is very stable in a vacuum. Stoichiometric samples are colored intense purple-violet, while boron-rich ones (above LaB6.07) are blue. Ion bombardment changes its color from purple to emerald green. LaB6 Disc is a superconductor with a relatively low transition temperature of 0.45 K.
Borides are hard, high-melting materials with metal-like conductivity, and they are stable to nonoxidizing acids but break down in strong oxidizing agents and strong alkalis. Borides are used in semiconductors, superconductors, diamagnetic, paramagnetic, ferromagnetic, anti-ferromagnetic, turbine blades, and rocket nozzles. High Purity (99.999%) Lanthanum Boride Sputtering Target nanopowder forms may be considered.
Lanthanum Hexaboride Disc Specification
|
Product
|
Lanthanum Hexaboride
|
Structure
|
Polycrystalline
|
|
Symbol
|
LaB6
|
Thermal Conductive
|
47 W/mK (20℃)
|
|
Cas No.
|
12008-21-8
|
Thermal Expansion
|
6.2 10-6K-1 (20-900℃)
|
|
Atomic Mass
|
203.78 g/mol
|
Electrical Resistance
|
ca.15 μΩ cm (20℃)
|
|
Density
|
4.72 g/cm3
|
Electrical Conductive
|
6.65x104 S/cm (20℃)
|
|
Melting Point
|
2528 K
|
Currenty Denstiy
|
150 A/cm2 (1950℃)
|
|
Hardness
|
87.5 RA
|
Electron Emissivity
|
2.6 eV
|
|
Flexure Strength (σ)
|
200 Mpa
|
Fracture toughness (Kic)
|
3.0 MN/m3/2
|
Chemical Composition
|
LaB6 (% min.)
|
|
99.9%
|
|
B(% min.)
|
|
31%
|
|
Rare Earth Impurities
|
Non-RE Impurities
|
|
Ce
|
<120ppm
|
Fe
|
<250ppm
|
|
Pr
|
<150ppm
|
Si
|
<100ppm
|
|
Nd
|
<180ppm
|
Ca
|
<90ppm
|
|
Sm
|
<112ppm
|
C
|
<300ppm
|
|
Y
|
<250ppm
|
Mg
|
<100ppm
|
| |
|
Ti
|
<100ppm
|
Lanthanum Hexaboride Disc Applications
* Thermionic emission (cathode)
* Plasma source for plasma enhanced coating(PECVD)
* Vacuum electron beam welding machine
* Electron beam surface reforming device
* Electron beam lithography device
* Transmission electron microscope
* Scanning electron microscope
* Surface analysis device
* Radiotherapy devices
Lanthanum Hexaboride Disc Packing
SAMs’ LaB6 ceramics are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
Prototyping service also available for other ceramics material
Alumina
Aluminum Nitride
Boron Nitride
Silicon Carbide
Silicon Nitride
Zirconia
