Boron Nitride Ceramics

Boron Nitride Ceramics 2017-12-05T15:33:14+00:00

Project Description

Sample Products

Advanced Finishing Services

  • Precision Machining and grinding
  • Laser machining
  • Engineering design and support
  • Metallizing

Manufacturing Options

  • Hot Pressed
  • Roll compacting
  • Co-firing
  • Isostatic pressing
  • Dry pressing
  • Hot pressing
  • Tape casting
  • Slip casting

Material Properties

Density gm/cc 3.92
Crystal Size (Average) Microns 6
Water absorption (open porosity) % 0
Gas permeability % 0
Color ¯ Ivory
Flexural Strength (MOR) 20°C MPa (psi x 103) 375 (54)
Elastic Modulus 20°C GPa (psi x 106)  370 (54)
Poisson’s Ratio 20°C ¯  0.22
Compressive Strength 20°C MPa (psi x 103)  2500 (363)
Hardness GPa (kg/mm2)  14.1  (1440)
R45N  83
Tensile Strength 25°C MPa (psi x 103)  248 (36)
Fracture Toughness K(I c) mpa m1/2  4-5
Thermal Conductivity 20°C W/m K 30.0
Coefficient of Thermal Expansion 25-1000°C X 10-6/°C 8.2
Specific Heat 100°C 880 J/kg*K 880
Thermal Shock Resistance   ΔTc  °C 200
 Maximum Use Temperature   °C  1750
Dielectric Strength 6.35mm ac-kV/mm (ac V/mil) 8.7 (220)
Dielectric Constant 1 MHz 25°C  9.8
Dielectric Loss (tan delta) 1 MHz 25°C  <0.0001
Volume Resistivity 25°C ohm-cm  >10
                            500°C ohm-cm
                            1000°C ohm-cm
*The chart is intended to illustrate typical properties. Property values vary with method of manufacture, size, and shape of part. Data contained herein is not to be construed as absolute and does not constitute a representation or warranty for which Ortech, Inc. assumes legal responsibility.