solidification method can be used to synthetize polycrystals.
Directional solidification furnace is divided into 3 zones according to
Take gallium arsenide for example. Arsenic element will sublimate in low temperature region (about 630 ℃), then through the medium temperature region and form polycrystals in high temperature region with gallium gradually. PBN boats act the reaction vessel in high temperature region.
1. Our company can manufacture large size PBN boats (The maximum height can be 17 inches).
2. High density (It can reach to 2.19 g/cm3).
3. High purity (>99.99%).
4. High cracking resistance (Excellent coefficient of thermal expansion).
5. No deformation at high temperature (It can resist the high temperature of 2300℃ in vacuum)
6. Long service life time.
|microhardness (knoop)(ab side)||N/mm2||691.88|
|bend strength||(力|| “C”)||N/mm2||243.63|
|thermo conductivity||W/m·k||“a” direction “c” direction|
|dielectric strength（at room temperature）||KV/mm||56|
The product can be used to synthesize crystal, melt and evaporate metal. This PBN product is mainly used for the production of III-V single-crystal with horizontal directional solidification method.