Beryllium Oxide Ceramics

Your Professional Beryllium Oxide Ceramics Supplier

Superior Ceramics Times Technology Co., Ltd. is a manufacturer specializing in the production of advanced ceramic materials, including nitrides, oxides, carbides, and composite ceramics. Our product portfolio encompasses silicon carbide, aluminum nitride, alumina, ultrapure alumina, yttria, zirconia, high-purity and high-performance boron nitride ceramics, zirconia toughened alumina (ZTA), alumina toughened zirconia (ATZ), silicon nitride, as well as other reinforced, composite, and high-performance ceramic materials.

Advanced Production Technology

The company employs advanced manufacturing technologies, including sintering, molding, grinding, CNC machining, laser drilling, precision grinding, and polishing processes.

Complete Production Equipment

Key production equipment includes sintering furnaces, isostatic presses, grinders, engraving machines, laser cutters, double-sided grinding machines, sand wire cutting devices, and injection molding machines.

 

Professional R&D Team

Our team consists of experienced experts dedicated to researching advanced ceramic materials. To date, the team has published over 100 academic papers, filed five Chinese invention patents, and obtained more than 20 utility model patents.

Professional Service

The product has technical support from Ph.D. experts and other experts during the research and development stage. The process is rigorous during the production process, and the after-sales service is on call 24 hours a day.

 

 

 
 
Parameter

 

Number

Performance

Unit

 

Beryllium oxide

BeO

1

Density

g/cm3

3.03

2

Flexural strength

MPa

150~200

3

Fracture toughness

MPa·m1/2

2~4

4

Dielectric constant

εr(20℃,1MHz)

6~7

5

Hardness

GPa

9

Hardness

HRC

90

6

Volume resistivity

Ω·cm(20℃)

1013~1014

7

Elastic modulus

GPa

300~350

8

Coefficient of thermal expansion

×10-6/k

6~7

9

Compressive strength

MPa

2800

10

Abrasions

g/cm2

0.01

11

Thermal conductivity

W/m×k(20℃)

200~250

12

Poisson's ratio

/

0.25~0.3

13

Insulation strength

kv/mm

10~15

14

Temperature

1900

15

Melting point

 

2570

16

Dielectric loss tangent value

 

4×10-4(0.1GHz)

 

Advantages of Beryllium Oxide Ceramics

 

Beryllium Oxide (BeO) Ceramic Disc
  • High Thermal Conductivity

    Beryllium oxide ceramic has exceptional thermal conductivity, making it an excellent choice for applications where heat dissipation is crucial. This property allows electronic components to operate at higher power levels without overheating.

  • Low Dielectric Loss

    BeO ceramic has a low dielectric loss, meaning it can transmit electrical signals with minimal loss of energy. This property is important for maintaining signal integrity, especially in high-frequency applications.

  • Mechanical Stability

    BeO ceramic PCBs offer high mechanical stability, which is beneficial for applications subjected to mechanical stress or vibration. This stability helps ensure the reliability and durability of the PCB.

  • Chemical Resistance

    Beryllium oxide ceramic is resistant to many chemicals, including acids and alkalis, which can extend the lifespan of the PCB and protect electronic components from corrosion.

 

Applications of Beryllium Oxide Ceramics

 

High-Power Electronics and Integrated Circuits

As high-power electronics demand better heat management, BeO ceramics have become popular for thermal design. With high thermal conductivity and a low dielectric constant, BeO is perfect for dissipating heat in electronic devices, helping prevent overheating and ensuring system reliability.
BeO ceramics are now widely used in:
High-performance microwave packaging.
High-frequency electronic transistor packaging.
Multichip components with high circuit density.

Nuclear Reactors

Ceramics are crucial in nuclear reactors due to their ability to withstand high temperatures and radiation. Beryllium oxide ceramics, in particular, offer excellent thermal stability, high density, and strength under high temperatures, making them ideal for nuclear applications.
BeO ceramics serve as:
Neutron reflectors and moderators in reactors.
Control rods in combination with uranium oxide (UO₂) for nuclear fuel.
Compared to metal, BeO is more stable under irradiation, has higher heat conductivity, and is cost-effective.

Special Metallurgical Crucibles

BeO ceramics, being refractory materials, are widely used for melting rare and precious metals. BeO crucibles are ideal for applications that require high-purity metals or alloys and can withstand temperatures up to 2000°C. With a melting point of 2550°C and high chemical stability, these crucibles are especially suited for handling molten glaze and plutonium.

Other Notable Applications

Laser Technology: Due to their high thermal conductivity, BeO ceramics contribute to lasers with high efficiency and output power.
X-ray Tubes: BeO ceramics can be added to glass to produce X-ray transparent glass, useful for X-ray tubes in medical and structural analysis.
Electronic Components: The unmatched thermal conductivity and low dielectric loss of BeO ceramics make them irreplaceable in certain electronic applications.

 

Common Processing Methods of Beryllium Oxide Ceramics
 
 
 

Diamond Grinding

This is the most widely used method. Diamond grinding wheels are used to remove material and achieve the desired shape and surface finish.

 
 

Ultrasonic Machining (USM)

USM uses high-frequency vibrations and an abrasive slurry to erode the material. This is suitable for creating complex shapes and intricate details.

 
 

Laser Machining

Laser machining can be used to cut, drill, and engrave BeO ceramic. It offers high precision and minimal material waste.

 
 

Electrical Discharge Machining (EDM)

EDM uses electrical sparks to remove material. This is suitable for creating complex shapes and hard-to-reach areas.

 

 

Comparison of Beryllium Oxide Ceramics with Alumina (Al2O3) and Aluminum Nitride (AlN)

 

Property

Beryllium Oxide (BeO)

Alumina (Al2O3)

Aluminum Nitride (AlN)

Thermal Conductivity (W/m·K)

250-300

20-40

170-220

Electrical Insulation

Excellent

Good

Excellent

Melting Point (°C)

2550

2072

2200

Cost

High

Low

Moderate

Toxicity

Toxic (Powder)

Non-Toxic

Non-Toxic

Key Applications

High-power electronics, lasers, nuclear

General-purpose ceramics

High-performance electronics

 

Packaging and Shipping

 

Packaging

The package of our products usually includes bubble wrap, carton, pallet and wooden case, etc. Also it can be designed according to your demands.

Shipping

We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc.

 

 

Our Factory

 

Superior Ceramics Times Technology Co., Ltd. was established in 2005 and has several production plants in Taizhou, Shaoxing, etc. We also have a registered company in the United States, located at 10 ROBIN, IRVINE, CA 92604.

 

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Our Certificates

 

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FAQ

 

Q: What is beryllium oxide ceramic?

A: Beryllium oxide ceramic is an inorganic non-metallic material made by sintering beryllium oxide (BeO) as the main raw material. It has extremely high thermal conductivity and excellent electrical insulation. It is a typical "high thermal conductivity-electrical insulation" functional ceramic.

Q: What are the properties of beryllium oxide ceramics?

A: Beryllium oxide (BeO) ceramics have the characteristics of high thermal conductivity, high melting point, high strength, high insulation, high chemical and thermal stability, low dielectric constant, low dielectric loss and good process adaptability.

Q: Why does beryllium oxide ceramic have high thermal conductivity?

A: The Be²⁺ and O²⁻ ions in BeO crystals have small radii and high charge density, and there is less phonon scattering when the lattice vibrates, forming an efficient heat conduction path, similar to the thermal conduction mechanism of diamond.

Q: What is the thermal expansion coefficient of beryllium oxide ceramics?

A: The thermal expansion coefficient at room temperature is 9.0×10⁻⁶/℃, and the matching with silicon (2.6×10⁻⁶/℃) and GaAs (6.0×10⁻⁶/℃) needs to be adjusted through composite coating.

Q: What are the precautions for storage and transportation of beryllium oxide ceramics?

A: Store in a sealed dry environment to prevent moisture absorption (BeO is slightly soluble in water to form Be (OH)₂).
Transportation must be marked as "toxic substances" to avoid dust leakage, and operators must wear protective equipment.

Q: What are the surface metallization processes for beryllium oxide ceramics?

A: Mo-Mn method: High temperature sintering of Mo-Mn slurry, followed by electroplating of Ni/Au.
Direct copper bonding (DBC): Bonding of ceramics to copper layers through active metal solder.
Thin film deposition: Magnetron sputtering to prepare Ti/Cu/Ni multilayer conductive films.

As one of the most professional beryllium oxide ceramics manufacturers and suppliers, we're featured by quality products and good price. Please rest assured to buy high-grade beryllium oxide ceramics from our factory.

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