Zirconia Ceramic Zirconium Oxide

Zirconia (ZrO2) is a unique advanced ceramic. Products manufactured from zirconia powder exhibit superior mechanical properties such as high strength and flexibility. Heat insulating properties and oxygen-ion conductivity indicate zirconia has potential for use in a wide variety of applications - everything from telecommunications to the new energy of the future and environmentally beneficial products.

Zirconia offers chemical and corrosion resistance to temperatures well above the melting point of Alumina. In its pure form crystal structure changes limit mechanical applications, however stabilized Zirconias produced by addition of Calcium, Magnesium or Ytrium Oxides can produce very high strength, hardness and particularly toughness. In addition the material has low thermal conductivity and is an ionic conductor above 600°C. This has lead to applications in oxygen sensors and high temperature fuel cells.

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ACT Material
Code >
  AC-MSZ853 AC-YSZ453
Description >  
Zirconia
    Magnesia
Partially
Stabilized
Yttria
Partially
Stabilized
ACT Material
Code >
  AC-MSZ853 AC-YSZ453
Color - Dark Ivory Ivory
Density g/cc 5.70-5.75 6.00-6.05
Porosity % 0-1 0-1
Flexural
Strength
psi (MPa) 85,000
(586)
115,000
(793)
Compressive
Strength
psi (Mpa) 250,000
(1,732)
340,000
(2,344)
Tensile
Strength
psi (MPa) 50,000
(345)
62,000
(427)
Elastic
Modulus
psi x 106 (GPa) 30
(207)
31
(214)
Fracture
Toughness
MPa/m 9-10 10-11
Dielectric
Strength
Volts/mil 230 230
Dielectric
Loss Tangent
@ 1 MHz 0.001 0.001
Thermal
Conductivity
W/m°K 2.5 2.5
Coefficient
Of Thermal
Expansion
cm/cm/°C
(RT to 700°C)
10 10
Safe Use
Temperature
°F
°C
950
510
2700
1480

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