Boron Nitride (BN) - Properties and Information on Boron Nitride

Material: Boron Nitride (BN) - Properties and Information on Boron Nitride
Composition: BN
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.0043 0.0045 m3/kmol 262.402 274.607 in3/kmol
Density 1.9 2.3 Mg/m3 118.613 143.584 lb/ft3
Energy Content 200 300 MJ/kg 21667.7 32501.6 kcal/lb
Bulk Modulus 12.5 65.7 GPa 1.81297 9.52897 106 psi
Compressive Strength 225 540 MPa 32.6335 78.3204 ksi
Ductility 0.00037 0.004 0.00037 0.004 NULL
Elastic Limit 27 83.3 MPa 3.91602 12.0816 ksi
Endurance Limit 23 64 MPa 3.33587 9.28241 ksi
Fracture Toughness 2.5 5 MPa.m1/2 2.27512 4.55023 ksi.in1/2
Hardness 660 3000 MPa 95.725 435.113 ksi
Loss Coefficient 1e-005 3e-005 1e-005 3e-005 NULL
Modulus of Rupture 33 110 MPa 4.78625 15.9542 ksi
Poisson's Ratio 0.21 0.27 0.21 0.27 NULL
Shear Modulus 7.8 41.3 GPa 1.13129 5.99006 106 psi
Tensile Strength 27 83.3 MPa 3.91602 12.0816 ksi
Young's Modulus 19.5 100 GPa 2.82823 14.5038 106 psi
Glass Temperature K °F
Latent Heat of Fusion 1440 1800 kJ/kg 619.085 773.857 BTU/lb
Maximum Service Temperature 1440 1990 K 2132.33 3122.33 °F
Melting Point 3150 3400 K 5210.33 5660.33 °F
Minimum Service Temperature 0 0 K -459.67 -459.67 °F
Specific Heat 770 1150 J/kg.K 0.595871 0.889937 BTU/lb.F
Thermal Conductivity 19 52 W/m.K 35.5686 97.3457 BTU.ft/h.ft2.F
Thermal Expansion 1 6 10-6/K 1.8 10.8 10-6/°F
Breakdown Potential 35 45 MV/m 889 1143 V/mil
Dielectric Constant 3.9 4.3 3.9 4.3 NULL
Resistivity 1e+018 1e+021 10-8 ohm.m 1e+018 1e+021 10-8 ohm.m
Environmental Properties
  Resistance Factors
1=Poor 5=Excellent
Flammability 5
Fresh Water 5
Organic Solvents 5
Oxidation at 500C 5
Sea Water 5
Strong Acid 4
Strong Alkalis 5
UV 5
Wear 5
Weak Acid 5
Weak Alkalis 5

This data is provided subject to AZoM.com's terms and conditions. Data reproduced with permission of Granta Design Limited www.grantadesign.com and Ceram Research Limited www.ceram.co.uk

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