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Boron Nitride Property: | ||||||||||||
Grade | BN99 | CABN | ALBN | ZSBN | ZABN | SBN | ||||||
Compositions | BN>98.5% | BN>97.5% | AlN+BN | ZrO2+BN | ZrO2+AlN+BN | SiC+BN | ||||||
Binder | B2O3 | CaB2O3 | AlBO3 | B2O3 | AlBO3 | AlBO3 | ||||||
Density(g/cm3) | 1.95~2.0 | 2.0~2.1 | 2.6 | 2.9~3.0 | 3.2~3.3 | 2.4~2.6 | ||||||
25℃ Volume Resistivity(Ω·cm) | >1014 | >1013 | >1014 | >1012 | >1012 | >1012 | ||||||
Max. Service Temp. (℃) | ||||||||||||
Oxygen | 900 | 900 | 900 | 1000 | 900 | 900 | ||||||
Inert Gas | 2400 | 2400 | 2100 | 1800 | 1800 | 1700 | ||||||
High Vacuum | 2200 | 2200 | 1900 | 1800 | 1800 | 1700 | ||||||
Three-point | 30 | 70 | 130 | 120 | 130 | 91 | ||||||
Flexural Strength(Mpa) | ||||||||||||
Compressive Strength(Mpa) | 100 | 100 | 250 | 280 | 300 | 300 | ||||||
Coefficient of Thermal Expansion | 1.5 | 2 | 4.5 | 5 | 5 | 4 | ||||||
25~1000℃(10-6/K) | ||||||||||||
Thermal Conductivity(W/mK) | 15 | 20 | 50 | 20 | 40 | 40 |