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Your current location :Home > Cerium Hexaboride - CeB6

Cerium Hexaboride (CeB6)

Cerium Hexaboride (CeB6)Cerium hexaboride is an inorganic chemical, a boride of cerium. It is a refractory ceramic material. It has low work function and one of the highest electron emissivity known, and is stable in vacuum. The principal use of cerium hexaboride is a coating of hot cathodes, or hot cathodes made of cerium hexaboride crystals. It usually operates at temperature of 1450 °C.

Lanthanum hexaboride (LaB6) and cerium hexaboride (CeB6) are used as coating of some high-current hot cathodes. Hexaborides show low work function, around 2.5 eV. They are also somewhat resistant to cathode poisoning. Cerium boride cathodes show lower evaporation rate at 1700 K than lanthanum boride, but it becomes equal at 1850 K and higher above that. Cerium boride cathodes have one and half the lifetime of lanthanum boride, due to its higher resistance to carbon contamination. Boride cathodes are about ten times as "bright" than the tungsten ones and have 10–15 times longer lifetime. In some laboratory tests, CeB6 has proven to be more resistant to the negative impact of carbon contamination than LaB6. They are used e.g. in electron microscopes, microwave tubes, electron lithography, electron beam welding, X-Ray tubes, and free electron lasers.

Cerium hexaboride, like lanthanum hexaboride, slowly evaporates during the cathode operation. In conditions where CeB6 cathodes are operated under 1850 K, CeB6 should maintain its optimum shape longer and therefore last longer. While the process is about 30% slower than with lanthanum boride, the cerium boride deposits are reported to be more difficult to remove.

The Ce heavy fermion compounds have attracted much attention since they show a variety of unusual and interesting macroscopic properties. In particular, interest has been focused on the 4f narrow-band occupancy, and the role of hybridization with the conduction band states which strongly affects the physical properties.

Basic Information

Other names:cerium boride, ceBIX, CEBIX
CAS Number:12008-02-5
ECHA InfoCard: 100.031.375
EC Number:234-526-9

Chemical formula:CeB6
Molar mass:204.986 g/mol

    Density: 4.80 g/cm3
    Melting point: 2,552 °C; 4,625 °F; 2,825 K
    Solubility in water:insoluble
    Crystal structure:Cubic
    Space group:Pm3m ; Oh

Cerium Hexaboride Sputtering Targets - CeB6 Target

Purity--- 99.9%

Shape---Discs, Plate, Step (Dia ≤480mm, Thickness ≥1mm)

Rectangle, Sheet, Step (Length ≤420mm, Width ≤270mm, Thickness ≥1mm)

Tube( Diameter< 300mm, Thickness >2mm ) 

Application - Coating for thin film, Chromium(III) boride is an inorganic compound with the chemical formula CrB. It is used in wear resistant coatings.

Cerium Hexaboride Evaporation Material - CeB6 Granule

Purity - 99.9%

Granule - 3-6mm, 1-6mm

Application - Coating for thin film

Cerium Hexaboride Powder - CeB6

Purity--- 99.9%

Granularity --- 100mesh、200 mesh、325mesh

Relation Products:

Boron sputtering targets - B;

Boron carbide sputtering target - B4C;

Boron Nitride sputtering target - BN;

Aluminium Diboride Sputtering target - AlB2;

Cerium Hexaboride sputtering targets - CeB6;

Chrominium Boride sputtering targets - CrB;

Cobalt Boride sputtering target - CoB;

Hafnium Diboride (HfB2) Sputtering Target - HfB2;

Iron Boride sputtering targets - FeB;

Lathanum Hexaboride sputtering targets - LaB6;

Magnesium Diboride sputtering targets - MgB2;

Molybdenum Diboride sputtering targets - MoB2;

Neodymium Boride (NdB) Sputtering Target;

Nickel Boride sputtering targets -Ni2B;

Niobium Diboride (NbB2) Sputtering target - NbB2;

Tantalum Diboride Sputterng target - TaB2;

Titanium Aluminum Boron Sputtering Targets - TiAlB;

Titanium Diboride sputtering targets - TiB2;

Tungsten Diboride Sputtering tarets - WB2;

Vanadium Boride (VB2) Sputtering Target - VB / VB2;

Zirconium Diboride Sputtering targets - ZrB2;

 

 

 

 

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