Alumina Ceramics
High-Purity Alumina Ceramics
Applied Ceramics is a trusted high alumina ceramic manufacturer providing custom components made of 99.5% and 99.8% aluminum oxide. Clients choose ACI-995 & ACI-998 for their superior thermal conductivity, electrical insulation, & mechanical strength properties.
What is Alumina Ceramic?
Alumina ceramic, sometimes referred to as simply ‘alumina’ or aluminum oxide (Al₂O₃), is a high-performance technical ceramic best known for its hardness, corrosion resistance, and insulation properties. This versatile material is popular in a wide range of applications related to semiconductors, autos, medical devices, and more.
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Alumina Ceramics
Properties Units 99.5% Aluminum Oxide 99.8% Aluminum Oxide MECHANICAL Density gram/cm3 3.8-3.9 3.9 Color – ivory/white ivory Water Absorption % 0 0 Flexural Strength MPa@room temp.(R.T.) 310-379 400 Compressive Strength MPa@R.T. 2070-2620 3180 Hardness GPa 13.8-17.6 14.0-15.0 THERMAL Coefficient of Linear
Thermal Expansion1E-6/°C
(»25°C to Ј1000°C)9.0-9.4 8.0 Thermal Conductivity W/m°K@R.T. 25.1-35.6 29.5 Specific Heat cal/g°C@R.T. 0.19-0.21 0.21 Thermal Shock Resistance D T(°C) 200 250 Maximum Use Temperature °C 1600-1750 1800 ELECTRICAL Volume Resistivity Ohm. cm@R.T. >1014 >1014 Dielectric Constant 1MHz@R.T. 9.6-10.2 9.8
