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Thermochromism refers to the phenomenon where a material undergoes color changes under temperature changes. This change is usually caused by changes in the electronic or molecular structure of the material. Its application principle mainly involves t...
Hexagonal or amorphous nano aluminum nitride powders is widely used as aluminum nitride ceramic crucibles.
product origin:
Chinaitem no.:
L528shipping port:
Guangzhoucolor:
grey powderpayment:
T/T, PayPalAluminum Nitride Ceramic Crucibles Used AlN Nano Aluminum Nitride Powders
The spec for AlN Nano powders:
1. L522, 100-200nm, 99.9%, amorphous
2, L523, 300-500nm, 99.5%, amorphous
3. L528, 1-2um, 99%, amorphous
4. L530, 5-10um, 99.5%, amorphous
Aluminum Nitride ceramic crucibles:
Aluminum nitride ceramic crucibles: using corrosion-resistant of aluminum nitride ceramic and non-adhesion with molten metal properties can be used formelting precious metals and the preparation of single crystal, our factory could produce nano size and micron siz aluminum nitride powders for AlN crucibles.
AlN is a diamond-like carbon nitride, the maximum stable to 2200 ℃.High-temperature strength and strength decreases slowly with increasing temperature. Good thermal conductivity, thermal expansion coefficient, good thermal shock resistance material. Erosion resistance to molten metal strong,cast iron, preferably of aluminum or aluminum alloy material of the crucible.Aluminum nitride, or an electrical insulator, good dielectric properties, is promising as electrical components. Coating the surface of gallium aluminum nitride, to protect it from ion implantation annealing. Aluminum nitride is alsothe catalyst from hexagonal boron nitride to cubic boron nitride.
Aluminum nitride can be used for melting the metal container and the vacuum evaporation, vacuum evaporation is particularly suitable for aluminum crucible, because the aluminum nitride is heated in a vacuum vapor pressure, even if the decomposition, it does not pollute the aluminum. Aluminum nitride can also be a thermocouple protective cover, in the air 800 - 1000 ℃continuous immersion of aluminum in the pool is not more than 3000h erosiondamage. In the semiconductor industry, instead of using aluminum nitride crucible gallium arsenide synthetic quartz crucible, can completely eliminate thecontamination of Si to obtain a gallium arsenide high purity product ..
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