Lanthanum Hexaboride Disc is a refractory ceramic material. Stanford Materials Corporation (SMC) supplies our customers with the high-quality Lanthanum Hexaboride ceramic disc (LaB6 ceramic discs).
Lanthanum Hexaboride Disc (LaB6 Disc, also called lanthanum boride and LaB6) is an inorganic chemical. With a melting point of 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 intensely 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.
|
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 |
|
* 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
SMC’s LaB6 ceramics are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
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