Customize Beryllia Ceramic BeO Pot Beryllium Oxide crucible

In recent years, due to competitive research in Japan, the United States, and Europe, ceramic material technology has developed rapidly. As a new type of structural material that can adapt to various environments, ceramic materials have entered the stage of practical application. 

The properties of beryllium oxide ceramics crucible can be divided into thermal properties, electrical properties, nuclear properties, mechanical properties, and chemical properties. In the electronics industry, the commonly used parameters to evaluate the performance of beryllium oxide ceramics include bulk density, airtightness, liquid permeability, flexural strength, thermal shock resistance, coefficient of linear expansion, thermal conductivity, dielectric constant, volume resistivity, breakdown strength, and resistance to acidic and alkaline chemical conditions.

Beryllium oxide ceramics crucibleare a type of high-performance structural ceramic material, characterized by high thermal conductivity, high melting point, high strength, excellent insulation, high chemical and thermal stability, low dielectric constant, low dielectric loss, and good process adaptability. They are widely used in fields such as special metallurgy, vacuum electronics, nuclear technology, microelectronics, and optoelectronics.

Thermal properties of BeO ceramics crucible: In conductors, thermal conductivity is primarily determined by free electrons.

Conductors generally have high thermal conductivity but poor insulating properties. 

For most ceramics, thermal conductivity mainly depends on the thermal vibrations of atoms, ions, or molecules, resulting in poor heat conduction but good insulation. Only materials like beryllium oxide(BeO) ceramics crucible conduct heat through phonons, which allows them to have both high thermal conductivity and high insulation properties.

The thermal conductivity of BeO ceramics crucible is the highest among all practical ceramic materials, being 6 to 7 times that of dense Al2O3 and 3 times that of MgO. For BeO ceramics with a purity greater than 99% and a density above 99%, the thermal conductivity at room temperature can reach 310 W/(m·K). 
Generally, the thermal conductivity of BeO ceramics mainly depends on the material's purity and density—the higher the purity and density, the better the thermal conductivity.
Compared to alumina ceramics, beryllium oxide ceramics crucible have a higher thermal conductivity, allowing the heat generated in high-power devices to be conducted away efficiently and in a timely manner. This enables the devices to withstand higher continuous wave output power, thereby ensuring their stability and reliability. Therefore, they are also widely used in broadband high-power electronic vacuum devices, such as the power transmission windows of traveling wave tubes, support rods, and depressed collectors.

Widespread Applications of Beryllium Oxide crucible

Beryllium oxide (BeO) is widely used in fields such as aerospace, power electronics, optoelectronics, and the nuclear industry. It is especially the material of choice for applications requiring high thermal conductivity in high-power devices and circuits.

The high thermal conductivity and low dielectric constant are key reasons BeO ceramics are extensively applied in the electronics field. BeO ceramics crucible are currently used in high-performance, high-power microwave packages, high-frequency electronic transistor packages, and multi-chip components with high circuit density.

BeO ceramics crucible are also widely used in broadband high-power electronic vacuum devices, such as energy transmission windows, support rods, and depressed collector electrodes in traveling wave tubes (TWTs). The low dielectric constant and low loss contribute to excellent broadband matching characteristics and also help reduce power loss.

As a refractory material, BeO ceramics can be used for refractory support rods in heating elements, protective shields, furnace linings, thermocouple tubes, superconducting cathodes, thermal heating substrates, and coatings.

BeO ceramic products are also classified as refractory materials. BeO crucibles can be used to melt rare and precious metals, especially in situations requiring high-purity metals or alloys. The operating temperature of these crucibles can reach 2000°C. Due to their high melting point (around 2550°C), high chemical stability (alkali resistance), thermal stability, and purity, BeO ceramics can also be used to melt uranium and plutonium.

Additionally, these BeO crucibles have been successfully used to produce standard samples of silver, gold, and platinum. BeO’s high 'transparency' to electromagnetic radiation allows metals in these crucibles to be melted using induction heating.

Technical Specifications