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Alumina Ceramic Custom Finishing
Ultra-Thin Processing Technology structure ceramics
Alumina ceramics are also known as precision ceramics, special ceramics, or high-tech ceramics. It is a ceramic with highly selected raw materials, produced according to a special manufacturing process, which can precisely control the chemical composition and has excellent properties. Alumina ceramic can make thin, flat pieces of ceramic material made primarily from aluminum oxide (Al2O3). They are widely used in various electronic applications due to their exceptional properties.
Key Characteristics:
High Thermal Conductivity:
Alumina ceramic substrates exhibit excellent thermal conductivity, enabling efficient heat dissipation from electronic components mounted on them.
Electrical Insulation:
These substrates possess high electrical resistivity, making them suitable for insulating electrical components and preventing short circuits.
Mechanical Strength:
Alumina ceramic substrates are mechanically robust and can withstand high mechanical stresses, vibrations, and shock.
Chemical Resistance:
They are highly resistant to chemicals, solvents, and corrosion, ensuring long-term reliability in harsh environments.
Low Thermal Expansion:
Alumina ceramic substrates have a low coefficient of thermal expansion, minimizing thermal stress on mounted components during temperature changes.
Customised Production:Customised production involves tailoring the manufacturing process to meet specific customer requirements. In the context of aluminium oxide ceramic blind tubes, this may include customising the dimensions, shapes, surface finishes, and other specifications to suit the intended application.
Main characteristics: high melting point, high hardness, can be made into transparent ceramics, non-toxic, insoluble in water, high strength.
Main applications: corundum ball mill, lamps for high pressure sodium lamps, crucibles, tap valve cores.
SHENZHEN HAORUI can offer not only qualified products, we can also supplying quality service including design, development, export and after sales. With our professional skills, advanced technology and quality material, we can design and develop new products or new applications according to the clients' expectation. We have custom-made new products and promoted the specifications for more than 1000 clients, and we have gotten good reputation from our clients.
Properties of Alumina material (Al2O3)
Property | Item | 95% Al2O3 | 99% Al2O3 | 99.8%Al2O3 | Unit |
Mechanical Characteristics | Color | White | light yellow | Ivory | |
Bulk Density | 3.7 | 3.85 | 3.93 | g/cm3 | |
Water Absorption | 0 | 0 | 0 | % | |
Bending Strength | 300 | 310 | 370 | MPa | |
Compressive Trength | 2,300 | 2,400 | 2500 | MPa | |
Elastic Modulus | 320 | 340 | 390 | GPa | |
Fracture Toughness | 3~4 | 3~4 | 4 | MPa m1/2 | |
Weber Coefficient | 12 | 12 | 12 | m | |
Vickers Hardness | 1,400 | 1,600 | 1850 | HV 0.5 | |
Thermal Characterics | Coefficient of Line Thermal Expansion | 7~8 | 7~8 | 7~8 | 10-6 K-1 |
Thermal Conductivity | 20 | 29 | 32 | W/mK | |
Thermal Shock Resistance (Put in Water) | 250 | 200 | 280 | ΔT °C | |
Max Working Temperature | 1,500 | 1,600 | 1700 | °C | |
Electrical Characteristics | Volume Resistance At 20°C | >1014 | >1014 | >1014 | Ωcm |
Dielectric Strength | 15×106 | 15×106 | 15×106 | V/m | |
Dielectric Constant | 9 | 10 | 10 | εr | |
One MHZ Dielectric Loss Angle at 20°C | 0.0004 | 0.0002 | 0.0001 | tanδ | |
Chemical Characteristics | Nitric Acid (60%) 90°C | 0.1 | 0.1 | 0.05 | 24H WT Loss mg/cm2 |
Sulphuric Acid (95%) 95°C | 0.3 | 0.34 | 0.22 | ||
Caustic Soda (30%) 80°C | 0.9 | 0.95 | 0.04 |
Alumina Ceramic Custom Finishing
Ultra-Thin Processing Technology structure ceramics
Alumina ceramics are also known as precision ceramics, special ceramics, or high-tech ceramics. It is a ceramic with highly selected raw materials, produced according to a special manufacturing process, which can precisely control the chemical composition and has excellent properties. Alumina ceramic can make thin, flat pieces of ceramic material made primarily from aluminum oxide (Al2O3). They are widely used in various electronic applications due to their exceptional properties.
Key Characteristics:
High Thermal Conductivity:
Alumina ceramic substrates exhibit excellent thermal conductivity, enabling efficient heat dissipation from electronic components mounted on them.
Electrical Insulation:
These substrates possess high electrical resistivity, making them suitable for insulating electrical components and preventing short circuits.
Mechanical Strength:
Alumina ceramic substrates are mechanically robust and can withstand high mechanical stresses, vibrations, and shock.
Chemical Resistance:
They are highly resistant to chemicals, solvents, and corrosion, ensuring long-term reliability in harsh environments.
Low Thermal Expansion:
Alumina ceramic substrates have a low coefficient of thermal expansion, minimizing thermal stress on mounted components during temperature changes.
Customised Production:Customised production involves tailoring the manufacturing process to meet specific customer requirements. In the context of aluminium oxide ceramic blind tubes, this may include customising the dimensions, shapes, surface finishes, and other specifications to suit the intended application.
Main characteristics: high melting point, high hardness, can be made into transparent ceramics, non-toxic, insoluble in water, high strength.
Main applications: corundum ball mill, lamps for high pressure sodium lamps, crucibles, tap valve cores.
SHENZHEN HAORUI can offer not only qualified products, we can also supplying quality service including design, development, export and after sales. With our professional skills, advanced technology and quality material, we can design and develop new products or new applications according to the clients' expectation. We have custom-made new products and promoted the specifications for more than 1000 clients, and we have gotten good reputation from our clients.
Properties of Alumina material (Al2O3)
Property | Item | 95% Al2O3 | 99% Al2O3 | 99.8%Al2O3 | Unit |
Mechanical Characteristics | Color | White | light yellow | Ivory | |
Bulk Density | 3.7 | 3.85 | 3.93 | g/cm3 | |
Water Absorption | 0 | 0 | 0 | % | |
Bending Strength | 300 | 310 | 370 | MPa | |
Compressive Trength | 2,300 | 2,400 | 2500 | MPa | |
Elastic Modulus | 320 | 340 | 390 | GPa | |
Fracture Toughness | 3~4 | 3~4 | 4 | MPa m1/2 | |
Weber Coefficient | 12 | 12 | 12 | m | |
Vickers Hardness | 1,400 | 1,600 | 1850 | HV 0.5 | |
Thermal Characterics | Coefficient of Line Thermal Expansion | 7~8 | 7~8 | 7~8 | 10-6 K-1 |
Thermal Conductivity | 20 | 29 | 32 | W/mK | |
Thermal Shock Resistance (Put in Water) | 250 | 200 | 280 | ΔT °C | |
Max Working Temperature | 1,500 | 1,600 | 1700 | °C | |
Electrical Characteristics | Volume Resistance At 20°C | >1014 | >1014 | >1014 | Ωcm |
Dielectric Strength | 15×106 | 15×106 | 15×106 | V/m | |
Dielectric Constant | 9 | 10 | 10 | εr | |
One MHZ Dielectric Loss Angle at 20°C | 0.0004 | 0.0002 | 0.0001 | tanδ | |
Chemical Characteristics | Nitric Acid (60%) 90°C | 0.1 | 0.1 | 0.05 | 24H WT Loss mg/cm2 |
Sulphuric Acid (95%) 95°C | 0.3 | 0.34 | 0.22 | ||
Caustic Soda (30%) 80°C | 0.9 | 0.95 | 0.04 |