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99 Alumina Ceramic Custom Finishing
Alumina ceramic discs with hole CNC machining
Alumina ceramic discs with holes are specialized components made from alumina (aluminum oxide) ceramic material that feature one or more perforations or holes. Alumina ceramic discs can be manufactured with precision-drilled or machined holes. These discs are designed for specific applications where the presence of holes serves a particular purpose.
Potential Applications:
1.Sensor Components:
Alumina ceramic discs with holes can find use in sensor assemblies, where they may facilitate the passage of certain substances while providing structural support.
2. Ceramic Filters:
The discs can be employed as ceramic filters in various industries, such as foundries or metal casting, where molten metals need to be filtered.
3. Electronic Insulation:
In electronic applications, these discs can be used as insulating components, providing electrical isolation while allowing for the passage of certain elements like light or gases.
4. Gas Diffusers:
In applications requiring the diffusion of gases, discs with holes can be used to control and distribute the flow of gases.
5. Support or Spacer Components:
The discs with holes can serve as support or spacer components in assemblies where separation or positioning of elements is necessary.
6. Fluid Flow Control:
Alumina ceramic discs with holes can be used in fluid handling systems to control the flow of liquids or gases. The holes can be strategically placed for specific flow patterns.
7. Thermal Insulation Plates:
Alumina ceramic discs with holes can be used as thermal insulation plates in applications where precise control of heat transfer is required. The holes can contribute to reducing thermal conductivity.
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 |
99 Alumina Ceramic Custom Finishing
Alumina ceramic discs with hole CNC machining
Alumina ceramic discs with holes are specialized components made from alumina (aluminum oxide) ceramic material that feature one or more perforations or holes. Alumina ceramic discs can be manufactured with precision-drilled or machined holes. These discs are designed for specific applications where the presence of holes serves a particular purpose.
Potential Applications:
1.Sensor Components:
Alumina ceramic discs with holes can find use in sensor assemblies, where they may facilitate the passage of certain substances while providing structural support.
2. Ceramic Filters:
The discs can be employed as ceramic filters in various industries, such as foundries or metal casting, where molten metals need to be filtered.
3. Electronic Insulation:
In electronic applications, these discs can be used as insulating components, providing electrical isolation while allowing for the passage of certain elements like light or gases.
4. Gas Diffusers:
In applications requiring the diffusion of gases, discs with holes can be used to control and distribute the flow of gases.
5. Support or Spacer Components:
The discs with holes can serve as support or spacer components in assemblies where separation or positioning of elements is necessary.
6. Fluid Flow Control:
Alumina ceramic discs with holes can be used in fluid handling systems to control the flow of liquids or gases. The holes can be strategically placed for specific flow patterns.
7. Thermal Insulation Plates:
Alumina ceramic discs with holes can be used as thermal insulation plates in applications where precise control of heat transfer is required. The holes can contribute to reducing thermal conductivity.
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 |