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Lanthanum Hexaboride (LaB6) Cathode

Catalog No.LB007
SizeCustomized
MaterialLaB6
Purity98%, 99%, 99.9%
ShapeCathode

Stanford Advanced Materials supplies our customers with high quality Lanthanum Hexaboride ceramic cathode (LaB6 cathode ceramic). Other shape of LaB6 cathode product: Lanthanum boride sputter targetLanthanum Hexaboride (LaB6) Disc

More details

Lanthanum Hexaboride Cathode(LaB6 cathode, also called lanthanum boride cathodeand LaB6 cathode) is an inorganic chemical. With melting point 2528 K, LaB6 cathode is a refractory ceramic material, which is insoluble in water or hydrochloric acid and very stable in vacuum. LaB6 cathode 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 cathode is a superconductor with a relatively low transition temperature of 0.45 K.

Specification:

Product

Lanthanum Hexaboride

Structure

Polycrystalline

Symbol

LaB6 cathode

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

Prototyping service also available for other ceramics material

Alumina

Aluminum Nitride

Boron Nitride

Silicon Carbide

Silicon Nitride

Zirconia

  

 

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

Radio therapy devices

 

 

Packing:

SAMs’ LaB6 cathode 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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