Beryllium Oxide (BeO) Ceramic Plate

Beryllium oxide (BeO) ceramic plate belongs to the cubic crystal system, with a density of 3.03g/cm3 and a melting point of 2570 ℃. It has high thermal conductivity and thermal conductivity λ It is 200-250W/(m · K), and has good thermal shock resistance. The dielectric constant is 6-7 (0.1MHz), and the dielectric loss tangent is about 4 × 10-4 (0.1GHz), it can be used for a long time under 1800 ℃ vacuum, 2000 ℃ inert atmosphere, e 1800 ℃ oxidation atmosphere.

Description of Beryllium Oxide Ceramic

Beryllium oxide ceramic is an advanced ceramic with beryllium oxide (BeO) as the main component. It is characterized by 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. It is a structural ceramic material with excellent performance and is widely used in special metallurgy, aerospace, vacuum electronics, nuclear technology, microelectronics,s and optoelectronics, Especially in high-power semiconductor devices, high-power integrated circuits, high-power microwave vacuum devices, and nuclear reactors, it has been the mainstream ceramic materials for preparing high thermal conductivity components.

Beryllium Oxide (BeO) Ceramic Plate applications

Due to its excellent thermal, electrical, nuclear, and mechanical properties, beryllium oxide ceramics can be used as carrier parts and assemblies in the aerospace field, as a neutron retarder and radiation protection material in atomic reactors in the nuclear industry, as a high-performance, high-power microwave package, as well as a wide band high-power electric vacuum device, and as a crucible for melting rare metals and precious metals, such as uranium and plutonium, It can also be used as refractory material for supporting rods of heating elements, etc., and has an excellent application in various fields.

Technical Parameter of Beryllium Oxide Ceramic

Item	Test Condition	Unit	Índice
Bulk Density		g/cm³	≥2.85
Beryllium oxide content		%	≥99
Airtightness			Pass
Liquid permeability			Pass
Flexural strength		MPa	≥170
Thermal shock resistance			Pass
Coefficient of linear expansion	20℃-500℃	×10^-6 /℃	7-8.5
Condutividade térmica	25℃	W/(m·k)	≥250
Partial constant	100℃	W/(m·k)	≥190
Tangent value of dielectric loss angle	1MHz 20℃		6.5-7.5
Volume resistivity	10GHz 20℃		6.5-7.5
Breakdown strength	1MHz 20℃	×10^-4	≤4
Chemical stability	10GHz 20℃	×10^-4	≤8

Performance index

N o	Product	Application
1	99 Beryllium oxide ceramic substrate	Solid-state electronics, various high-power devices, optical communication
2	99 Beryllium oxide ceramic metallized substrate	Solid state electronics, various high-power devices, optical communication
3	99 Beryllium oxide ceramic polishing substrate	Solid-state electronics, various high-power devices, optical communication
4	97 Beryllium oxide ceramic substrate	Solid-state electronics, various high-power devices, optical communication
5	99 Beryllium oxide ceramic pole	High-power traveling wave tube
6	99 Beryllium oxide ceramic tile	High-power electronic device
7	99 Beryllium oxide ceramic column	High power electronic device
8	99 Beryllium oxide ceramic cylinder	Vacuum device
9	99 Beryllium oxide ceramic crucible	Melting
10	99.5 Beryllium oxide ceramic shaped parts	Nuclear, high power period, vacuum device, microwave