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95% Alumina


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The higher the purity of alumina ceramics-95%, the greater their mechanical strength, corrosion resistance, electrical insulation, and thermal stability.

It is one of the most widely used and well-known precision ceramic materials. It exhibits excellent mechanical strength, electrical insulation properties, low dielectric loss, thermal conductivity, and high resistance to heat, wear, and corrosion. The advantages of alumina ceramics and their application industries are outlined below:




Performance and properties of 95% Alumina 

      characteristics  Value       characteristics     Value
     Sintered Density
       (1680℃,2h)
  3.72  g/cm³          permeability     0
   Water Absorption 0        Weibull Modulus     7-8
   Hardness,Mohs  9       Flexural Strength     300 Mp
       Tensile Modulus  320 gp    Compressive Strength     2400 Mp
       Poissons Ratio  0.22      Fracture Toughness   4.00 MPa-m¹%
      Volume Resistivity
            (400℃)
 >= 1.00e+12 ohm-cm       Dielectric Strength  10 - 20 kV/mm
     Dielectric Constant
           (le+6 Hz)
 9.5     Dielectric Loss Index
   (9.00e+9 Hz 0.0010)
      0.001
         CTE,linear
       (20.0-400°C)
    7.50  μm/m-℃           CTE,linear
       (20.0-1000°℃)
  8.1 μm/m-℃
  Specific Heat Capacity    0.880 J/g-°C    Thermal Conductivity   25.0   W/m-K

   Max.Service Temp.Air

    1450℃  Max.Service Temp.Inert      1450℃


Application Industries

  1. Electronics and Electrical Industry: Used in the manufacture of insulators, substrates, electronic components, and circuit boards.
  2. Mechanical Manufacturing: Used to produce wear-resistant parts, cutting tools, and mechanical seals.
  3. Aerospace: Utilized in high-temperature structural materials and turbine engine components.
  4. Chemical Industry: Employed in chemical reactor linings, pump components, and valves.
  5. Medical Equipment: Used in the manufacture of bioceramics, such as artificial joints and dental implants.
  6. Automotive Industry: Applied in oxygen sensors and high-performance engine components.
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