Ceramic Components - Material Properties (Alumina, Zirconia, Quartz)
     Property  Unit   99.8%
Alumina
99.5%
Alumina
Zirconia Quartz

  Mechanical

Color - Ivory Ivory/White Ivory white/transparent
Density g/cm3 3.9 3.8-3.9 5.79-6.05 2.2
Water Absorption % 0 0 0 0
Flexural Strength MPa@R.T. 400 310-379 900-980 80
Compressive Strength MPa@R.T. 3180 2070 - 2620 - 650-1100
Hardness Gpa 14.0-15.0 13.8-17.6 11.0-12.7 11.5-13.5
Thermal Coefficient of Linear thermal Expansion 1E-6/C (>25C to  1000C) 8.0 9.0-9.4 9.2-10.3 0.55
Thermal Conductivity W/mK@R.T. 29.5 25.1-35.6 2.2-3.8 1.4
Specific Heat cal/gC@R.T. 0.21 0.19-0.21 0.12 0.16
Thermal Shock resistance DT( C ) 250 200 280-360 -
Maximum Use temperature C 1800 1600-1750 2400 1200
Electrical Volume Resistivity Wcm@R.T. >1014 >1014 - 7 x 107
Dielectic Constant 1Mhz@R.T. 9.8 9.6-10.2 - 3.75
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