Product Code : CE-BeO-5N-CR
BeO ceramic conducts heat more quickly than virtually all metals with the exception of copper and silver. Beryllia exhibits extremely low dielectric loss characteristics, possesses high electrical resistivity, and offers excellent strength with high specific stiffness properties. BeO provides all the desirable physical and dielectric characteristics exhibited by aluminum oxide or aluminum nitride and, in addition, offers thermal conductivity ten times higher than alumina, and fifty percent higher than aluminum nitride, a dielectric constant that is lower than both alumina and aluminum nitride, and weight per given volume that is fully a quarter less than alumina, and nearly ten percent less than aluminum nitride.
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Product Information
It is endowed with a virtuously unique combination of thermal, electrical, optical, and mechanical properties which may be exploited for a diverse range of applications from thermal management systems for integrated electronics to high temperature high performance refractory components for nuclear reactors. No other oxide ceramic material collectively exhibits these highly desirable properties and characteristics.
As a thermally conductive and electrically insulating material its performance is exceeded only by that of diamond. it is an ideal material for applications requiring large heat dissipation as well as dielectric and mechanical strength. It is particularly well suited for use as a diode laser and semiconductor heat sinks and as a rapid thermal transfer medium for miniaturized circuitry and tightly contained electronic assemblages.
Beryllium oxide ceramic crucibles are made of high purity beryllium oxide ceramics. Beryllium oxide, or beryllia, is the best ceramic thermal conductor and competes with the most conductive metals, and its electrical isolation is equivalent to that of alumina and the best electrical insulators. BeO crucibles possess a unique combination of thermal, dielectric, and mechanical properties, and they are highly desirable in electronic applications.
Synonyms
Beryllium oxide, Beryllium monoxide, oxoberyllium
Beryllium Oxide Ceramic Crucibles Specifications
Dimensions
Per your request or drawing
We can customized as required
Properties（Theoretical）
| Appearance | White crucible |
| Melting Point | 2507 °C (4545 °F) |
| Boiling Point | 3900 °C (7052 °F) |
| Density | 2.9 g/cm3 |
| Solubility in H2O | N/A |
| Poisson's Ratio | 0.26 |
| Specific Heat | 1050 J/kg-K |
| Tensile Strength | 140 MPa (Ultimate) |
| Thermal Conductivity | 270 W/m-K |
| Thermal Expansion | 8.0 µm/m-K |
| Young's Modulus | 350 GPa |
| Exact Mass | 25.0071 |
| Monoisotopic Mass | 25.007097 Da |
| Maximum working temperature | 1800°C |
| Chemical stability（1: 9HCl ） | ≤0.3 μg / cm² |
| Chemical stability（10% NaOH ） | ≤0.2 μg / cm² |
| Resistivity（100℃ ） | ≥1013 Ω cm |
| Resistivity（300℃ ） | ≥1010 Ω cm |
| Electrical Resistivity | 13 10x Ω-m |
| Dielectric strength（DC ） | ≥15 KV / mm |
| Dielectric loss tangent（1 MHz 20℃） | ≤4× 10 ⁻⁴ |
| Dielectric loss tangent（10 GHz 20℃） | ≤8× 10 ⁻⁴ |
| Dielectric constant（1 MHz 20℃） | 6.5-7.5 |
| Dielectric constant（10 GHz 20℃） | 6.5-7.5 |
| Linear expansion coefficient（20℃-500℃ ） | 7-8.5 × 10 ⁻⁴ /℃ |
| Mechanical | Unit | 97%BeO | 99%BeO |
| Colour | —— | White | White |
| Density | g/cm³ | ≥2.85 | ≥2.85 |
| Flexural Strength | MPa | ≥170 | ≥190 |
| Air Tightness | Pa.m³/s | ≤10×10-11 | ≤10×10-11 |
| Average Grain Size | um | 12~30 | 12~30 |
| Thermal | Unit | 97%BeO | 99%BeO |
| Maximum Use Temperature | ℃(No load) | 1600 | 1600 |
| Thermal Conductivity @ 25°C | W/(m・K) | ≥200 | ≥240 |
| Thermal Conductivity @ 100°C | W/(m・K) | ≥160 | ≥190 |
| Thermal Expansion a at 25–500°C | 1 x 10-6/°C | 7~8.5 | 7~8.5 |
| Thermal Shock Resistance | ℃(Put in water) | 800 | 800 |
| Electrical | Unit | 97%BeO | 99%BeO |
| Dielectric Constant | 1MHz | 6.9±0.4 | 6.9±0.4 |
| Dielectric Strength | KV/mm | 50 | 50 |
| Dielectric Loss | 1MHz | 4 x 10-4 | 4 x 10-4 |
| Volume Resistivity @ 25°C | Ω・cm | ＞1014 | ＞1014 |
| Volume Resistivity @ 300°C | Ω・cm | ＞1011 | ＞1011 |
Advantages
High strength over a wide temperature range
High hardness
Low friction coefficient
Excellent wear resistance
Good heat resistance
High operating temperature
Good chemical resistance
Applications of Beryllium Oxide Ceramic Crucibles
-High-end laser diodes for commercial systems;
-Industrial laser metal cutting and marking equipment;
-Long-distance fiber optic transmission;
-Semiconductor processing equipment;
-End effector and arm assembly;
-Wafer chuck;
-Crucible for high temperature melting.
-In-situ X-ray analysis for downhole drilling;
-Concentrated photovoltaic (CPV) system;
-Transmitter, receiver, modulator and switch;
-Power amplifiers and drivers;
-Microwave and millimeter wave communication modules;
-Wireless communication;
-Point-to-point and point-to-multipoint radio;
-Satellite communication module.
-Beryllium oxide ceramic crucibles are used as a filler in some thermal interface materials such as thermal grease. Some power semiconductor devices have used beryllium oxide ceramic between the silicon chip and the metal mounting base of the package in order to achieve a lower value of thermal resistance than for a similar construction made with alumina. It is also used as a structural ceramic for high-performance microwave devices, vacuum tubes, magnetrons, and gas lasers.
Packing of Beryllium Oxide Ceramic Crucibles
Standard Packing:
Sealed bags in carton boxes. Special package is available on request.
As a ceramic material, BeO is quite fragile in a lot of cases. The Beryllia Crucibles are usually held in plastic bags by vacuum, and protected with heavy foam.
ATTs’ Beryllia Crucibles is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
Chemical Identifiers
| Linear Formula | BeO |
| MDL Number | MFCD00003457 |
| EC No. | 215-133-1 |
| Beilstein/Reaxys No. | 3902801 |
| Pubchem CID | 14775 |
| IUPAC Name | Oxoberyllium |
| SMILES | [Be]=O |
| InchI Identifier | InChI=1S/Be.O |
| InchI Key | LTPBRCUWZOMYOC-UHFFFAOYSA-N |
| CAS | 1304-56-9 |
