| Grade | Unit | BN-A | BN-B | BN-E | BN-AlN | BN-S |
|---|---|---|---|---|---|---|
| Main Ingredients | BN99% | BN99% | BN+ZrO2+Si | BN+AlN | BN+Si3N4 | |
| Density | g/cm3 | 2.15 | 2.15 | >2.3 | 2.85 | >2.7 |
| Hardness | HL | 300 | 450 | 600 | 650 | 650 |
| Flexural Strength | Mpa | 35 | 95 | 150 | 250 | 300 |
| Coefficient of Thermal Expansion | (10-6/K) | -1~2.5 | 1~2 | 2~3 | 2.5~3 | 2~3 |
| Thermal Conductivity at 20°C | W/mk | 50 | 35 | 15 | 85 | 45 |
| MAX-Temperature of use | Oxidizing | 900°C | 900°C | 900°C | 900°C | 1700°C |
| Vacuum | 1800°C | 1600°C | 1800°C | 1800°C | ||
| Inert | 2200°C | 1800°C | 1700°C | 2200°C | ||
| RT Resistivity | Ω.cm | >1014 | >1014 | >1012 | >1013 | >1014 |
| Property | Unit | Value | |
|---|---|---|---|
| Lattice constant | µ m | a:2.504×10-10 c:6.692×10-10 | |
| Apparent density | g/cm3 | 2.0 -2.21(board) 2.0 -2.17(crucible) | |
| Helium transmissivity | cm3/s | 1×10-12 | |
| Solidity by microscope | N/mm2 | 691.88 | |
| Volume resistivity | Ω·cm | 3.11×1011 | |
| Tensile strength | (Strength‖“C”)N/mm2 | 153.86 | |
| Bending strength | (Strength‖“C”)N/mm2, a: | 243.63 | |
| (Strength⊥“C”)N/mm2, c: | 197.76 | ||
| Elasticity modulus | N/mm2 | 235690 | |
| Pyroconductivity | W/m·k | “a” direction | “c“ direction |
| W/m·k (200℃) | 60 | 2.60 | |
| W/m·k (900℃) | 43.70 | 2.80 | |
| Dielectric strength (room temperature) | KV/mm | 56 | |
| Purity | ％ | 99.99-99.999 | |
| Grade | Application |
|---|---|
| BN-A | 1. High purity BN crucibles for molten metal processing 2. Crucibles and setter plate for Nitride phosphors, Silicon Nitride and Aluminum nitride firing 3. Insulators and protective tubes for high-temperature furnaces 4. Insulators for polysilicon furnace |
| BN-B | 1. Boron nitride parts for ion implanters 2. Boron nitride insulation spacer and sealing element for high-temperature equipment 3. Boron nitride parts for vacuum metalized machines 4. Boron nitride nozzles for powder metal atomization |
| BN-E/S | 1. Boron nitride continuous casting break rings 2. Boron nitride side dams for thin-strip casting 3. Boron nitride nozzles for amorphous and nanocrystalline 4. Nozzles for powder metal atomization |
| BN-AlN | 1. Electrical Insulation components 2. Semiconductor equipment components 3. Molded glass fixture material 4. Vacuum components 5. Heat sinks 6. Crucibles for vacuum deposition 7. Bearings and gears 8. Specialty refractory parts and tubes |
| PBN | 1. OLED Production 2. MOCVD Heater 3. Polycrystalline Synthesis 4. Molecular Beam Epitaxy (MBE) 5. Compound Semiconductor Crystal Growth 6. Satellite Communication TWT |
