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Beryllium Oxide Disk

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Composition: BeO 99.5 Form: Disk Material: Beryllium Oxide CAS Number: 1304-56-9 Commodity: Ceramics
Beryllium Oxide Disk is a high-performance ceramic renowned for its exceptional thermal conductivity, electrical insulation, and mechanical strength. With a thermal conductivity comparable to metals yet maintaining full dielectric properties, it is ideal for applications where efficient heat dissipation and electrical isolation must coexist. Industries such as high-power electronics, aerospace, and advanced semiconductor manufacturing utilize BeO disks in components like heat spreaders, high-frequency transistor substrates, and laser diode mounts. Specific uses include microwave device housings requiring both high thermal transfer and minimal signal loss, optoelectronic component mounts for precision alignment and heat control, and insulating platforms in power conversion systems. In research, BeO disks are invaluable for exploring thermal management in miniaturized electronics, studying high-temperature dielectric stability, and developing next-generation power semiconductor packaging. Its unique blend of high thermal performance, electrical resistance, and durability ensures it remains a critical material in high-reliability and high-performance industrial technologies.

Acute toxicity

Serious health hazard

Starting at $1,020.00 each
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Material Properties

Chemical Resistance
Element Value
Acids - concentrated Poor
Acids - dilute Fair
Alkalis Fair
Halogens Fair
Metals Good
Electrical Properties
Element Value
Dielectric constant 6.5-7.5
Dielectric strength( kV mm⁻¹ ) Oct-14
Volume resistivity( Ohmcm ) >10¹⁴@25
Physical Properties
Element Value
Apparent porosity( % ) 0
Water absorption - saturation( % ) 0.07
Density( gcm⁻³ ) 2.86
Thermal Properties
Element Value
Upper continuous use temperature( C ) 1800-1900
Specific heat( J K⁻¹ kg⁻¹ ) 1020-1120@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 260-300@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 8.4-9@20-1000°C
Mechanical Properties
Element Value
Tensile modulus( GPa ) 340-400
Hardness - Vickers( kgf mm⁻² ) 1100-1300
Shear strength( MPa ) 180-250
Pultrusions
Element Value
Compressive strength( MPa ) 1550-1850
each

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Available Configurations

Properties common to all products in this list

Composition: BeO 99.5 Form: Disk Material: Beryllium Oxide CAS Number: 1304-56-9 Commodity: Ceramics

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Tolerances

Disk
Thickness ±20%