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Yttria-stabilized Zirconia Balls

Formula: ZrO₂/Y₂O₃
Form: Ball/Sphere
Material: Zirconia - stabilized with Yttria
CAS Number: 114168-16-0
Commodity: Ceramics
Type: Precision Sphere
Sphericity: 0.625µm
Zirconia - stabilised with Yttria Balls are a specialized product within Goodfellow's range of balls. With 10 variations, these balls exhibit hardness, strength, and thermal shock resistance. The balls find use in valve components, seals, bearings, and other demanding applications where high temperature stability is needed. Zirconia - stabilised with Yttria Balls enable improved performance thanks to their optimized materials properties.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Ball/Sphere
Diameter Standard ±5%
Diameter Precision See Item

Material Properties for Ceramics

Thermal Properties
Element Value
Melting point( C ) 2700
Upper continuous use temperature( C ) 2200
Specific heat( J K⁻¹ kg⁻¹ ) 400-500@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 2.5@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 10@20-1000°C
Physical Properties
Element Value
Density( gcm⁻³ ) 5.9
Mechanical Properties
Element Value
Tensile modulus( GPa ) 200
Hardness - Vickers( kgf mm⁻² ) 1250
Tensile strength( MPa ) 300-600
Pultrusions
Element Value
Compressive strength( MPa ) 2000

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