silicon nitride ball,zirconia ball,alumina ball,ceramic bearing,grinding media,Sinoma Advanced Nitride Ceramics Co., Ltd.
current position: HOME >> TECHNICAL
technical
  • HIP Silicon Nitride VS GPS Silicon ..
  • Form and Surface Roughness Toleranc..
  • HIP Si3N4 VS GPS Si3N4
  • Performance Comparison of Si3N4, Zr..
  • Zirconia Oxide Ball Ingredients
  • Silicon Nitride Ball Ingredients
  • ZrO2+CeO2 Material Data Sheet
      • Performance Comparison of Si3N4, ZrO2, SiC, Steel

      Performance Comparison of Si3N4, ZrO2, Al2O3, Steel


      Si3N4

      ZrO2

      Al2O3(99%)

      SiC

      Steel

      Density (g/cm³)

      3.26

      6.05

      3.92

      3.2

      7.85

      Water Absorption %

      0

      0

      0

      0

      0

      Elastic Modulus (GPa)

      300

      210

      340

      440

      208

      Linear Expansion Coefficient (10-6/K)

      3.2

      10.5

      8.5

      3.0

      12.5

      Hardness (HV) Load 5KG GPa

      15

      13

      16.5

      22

      7

      Fracture Toughness (MPam1/2)

      7.0

      10

      4.2

      3.9

      25

      Bending Strength (MPa)

      720

      950

      310

      450

      /

      Compressive Strength (MPa)

      3200

      2000

      2200

      1800

      /

      Poisson’s Ratio

      0.25

      0.3

      0.22

      0.17

      0.3

      Thermal Conductivity W(mK)-1

      20

      2

      26

      120

      40

      Specific Resistance Ratio (Ω·mm2/m)

      >1018

      >1015

      >1016

      >1013

      0.1-1

      Highest Temperature (℃)

      1400

      750

      1750

      1550

      300

      Corrosion Resistance

      Strong

      Strong

      Strong

      Strong

      Weak