PROPRIETARY Sapphire Alumina (Al2O3)

Material group: Ceramics / Alumina (Al2O3)
Country / Standard: PROPRIETARY

Data updates

Latest Update: 2022-11
Total number of updates: 4
Update History
2022-07 2020-03 2018-04

This material has 114 properties — only a subset is shown here.

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PROPRIETARY Sapphire Physical Properties

Temperature

PROPERTY / VALUE
Compression Modulus
250 GPa
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Modulus of Elasticity
345 — 435 GPa
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Dielectric Strength
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kV/mm
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Volume Resistivity
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Ω·m
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Density
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kg/dm³
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Dissipation Factor (tan δ)
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Heat Capacity
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J/(kg∙°C)
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Relative Permittivity
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Thermal Conductivity
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W/(m∙°C)
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Crystal Structure
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Electrical Conductivity
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S/m
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Melting Temperature
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°C
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Poisson Coefficient
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Service Temperature
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°C
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Shear Modulus
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GPa
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Coefficient of Linear Thermal Expansion (CLTE)
val1
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10-6/°C
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Water Absorption
val1
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%
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Coefficient of Linear Thermal Expansion (CLTE) Normal
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10-6/°C
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Coefficient of Linear Thermal Expansion (CLTE) Parallel
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10-6/°C
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Gas Permeability
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%
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This material has 114 properties — only a subset is shown here.

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PROPRIETARY Sapphire Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
275 — 400 MPa
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Compression Strength
≤ 2000 MPa
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Modulus of Rupture
200 — 1035 MPa
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Knoop Hardness
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Vickers Hardness (HV)
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Mohs Hardness
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  • -Cross References
  • 1Composition
  • 18Mechanical Properties
  • 71Physical Properties
  • -Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • 20Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 4Total Suppliers