Alumina Ceramic Multihole Round Plates High Strength 95%-99.99% Alumina Ceramic Round Discs
- Materials：Alumina (Al2O3)/ Zirconia(ZrO2) /Si3N4 /SiC ...etc
- Sizes：Custom according to the drawings
- Delivery times：2 -25 days(depends on the quantity)
- Precision：Ra 0.1um tolerance: 0.001mm... etc
- Features：Heat resistance / Wear resistance / High purity / Refractory / High Corrosion / Good Insulation...
- Customized：Can be custom for special sizes and shapes
1. Factory price and shipment within 24 hours In stocks
2. MOQ: 1pc
3. Payment Term: PayPal; T/T; L/C etc.
4. Shipment: by sea by air by courier by post etc.
Alumina Ceramic Multihole Round Plates High Strength 95%-99.99% Al₂O₃ Ceramic Round Discs
Ceramic Multihole Round Plates (Al₂O₃ Ceramic Discs) are a type of high-performance ceramic components with multihole structures and alumina (95%~99.99% Al₂O₃) as the main component. They have excellent high temperature resistance, corrosion resistance, high hardness and insulation properties, and are widely used in industry, electronics, medical and other fields.
The hardness of alumina ceramic round plates is as high as level 9, with excellent wear resistance and corrosion resistance. They can be used for a long time in harsh environments without wear. Due to the high melting point of alumina, they can work for a long time in high temperature environments without deformation, cracking or falling off, and are suitable for high-temperature industrial scenes.
In addition, alumina ceramic round plates have good electrical insulation properties, can effectively isolate the conduction of current and heat, and are suitable for the manufacture of electronic components. Low thermal expansion coefficient and good dimensional stability are suitable for occasions with high requirements for thermal stability.
alumina and zirconia ceramic discs round plates made by Mingrui Ceramic
Application fields of alumina ceramic round plates/discs
1. Electronic industry
Alumina ceramic round plates can be used to make electronic ceramic substrates, conductive adhesives, capacitors and other electronic components to meet the needs of low high-frequency dielectric loss and excellent insulation performance.
2. Mechanical industry
Its high hardness and wear resistance make it an ideal material for making high-wear-resistant parts such as cutting tools, bearings, and seals. It can also be used to make ceramic blades and ceramic balls.
3. Semiconductor field
In semiconductor equipment, alumina ceramic round plates are often used to make precision parts, such as etching cavities, gas nozzles, gas distribution plates, and fixed rings, etc., to meet the requirements of high precision and low expansion coefficient.
4. Biomedicine
Alumina ceramic round plates have good biocompatibility and corrosion resistance, and can be used to prepare medical devices such as artificial joints and dental restoration materials.
5. Environmental protection field
Alumina ceramic round plates can be used to make filters and catalyst carriers for purifying exhaust gas and wastewater to meet environmental protection needs.
6. New energy field
In the manufacture of key components such as fuel cells and solar cells, alumina ceramic round plates can be used for solid-state battery diaphragm materials and new energy vehicle battery module insulation parts.
Al₂O₃ Ceramic Round Plate & Disc precision process:
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Precision of manufacture |
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Dimensional accuracy |
Up to 0.001mm |
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Smoothness |
Highest possible mirror |
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Concentricity |
Up to 0.003mm |
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Parallelism |
Up to 0.002mm |
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The inner hole tolerance |
The minimum 0.005mm |
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Straight flute |
The narrowest 0.1x100mm |
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The thickness of the size |
Minimum to 0.02mm |
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The screw thread |
Minimum internal thread M2 |
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Cylindricity |
Up to 0.004mm |
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The linear tolerance |
Up to 0.001mm |
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The smallest aperture |
The minimum 0.07mm |
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Precision process |
CNC maching,grinding,lapping |
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Surface finish |
Glazed,polishing or metallized |
Visual quality:
1. No cracks, no dark dots, no contamination and sharp edges;
2. Evenly distributed glaze with very smooth surface |
Raw materials-Molding process - Sintering - Machining & Grinding - Quality Inspector
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Ceramic Parameter:
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Properties |
Units |
AL2O3 |
ZrO2 |
SiC |
Si3N4 |
|
Density |
g/cm3 |
3.65-3.93 |
5.95-6.0 |
3.12 |
3.23 |
|
Water absorption |
0 |
0 |
0 |
0 |
0 |
|
Coefficientof thermal expansion |
10-16/k |
7.9-8.5 |
10.5 |
3 |
3.2 |
|
Modulus of elasticity young`s mod |
GPa |
280-340 |
210 |
440 |
300 |
|
Poission`s ratio |
/ |
0.21-0.22 |
0.3 |
0.17 |
0.26 |
|
HV hardness hv |
MPa |
1650 |
1300-1365 |
2800 |
1500 |
|
Flexural strength |
MPa |
310 |
950 |
390 |
720 |
|
Flexural strength(700℃) |
MPa |
230 |
210 |
380 |
450 |
|
Compressive strength |
MPa |
2200 |
2000 |
1800 |
2300 |
|
Fracture toughness |
MPa*m1/2 |
4.2 |
10 |
3.9 |
6.2 |
|
Heat conductivity |
W/m*k |
26-30 |
2-2.2 |
120 |
25 |
|
Electrical resistivity |
Ω*mm2/m |
>1016 |
>1015 |
>103 |
>1013 |
|
Max use temperature |
℃ |
1750 |
1050 |
1550 |
1050 |
|
Resistance to acid alkaline |
/ |
high |
high |
high |
high |
|
Dielectric constant |
/ |
9.6 |
29 |
9.66-10.03 |
/ |
|
Dielectric strength |
KV/mm |
8.7 |
9 |
/ |
/ |
|
Thermal shock resistance |
△T（℃） |
180-220 |
280-350 |
230-260 |
/ |
|
Tensile strength |
MPa |
248 |
250 |
/ |
/ |
|
Customization & Machining Service：
As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of ceramic round plates&discs or other ceramic parts.High quality,Factory price, on-time delivery, High composition of ceramics
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For more information about ceramics parts,please contact our engineers in time >>> |
 
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