E-mail：admin@cerampart.com

Ceramic plate

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...

Hotline

+86181-2297-4730

E-mail

admin@cerampart.com

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
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:
Precision of manufacture
Dimensional accuracy Up to 0.001mm
Smoothness Highest possible mirror
Concentricity Up to 0.003mm
Parallelism Up to 0.002mm
The inner hole tolerance The minimum  0.005mm
Straight flute The narrowest 0.1x100mm
The thickness of the size Minimum to 0.02mm
The screw thread Minimum internal thread M2
Cylindricity Up to 0.004mm
The linear tolerance Up to 0.001mm
The smallest aperture The minimum 0.07mm
Precision process CNC maching,grinding,lapping
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

 		   Ceramic Parameter:
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



For more information about ceramics parts,please contact our engineers in time  >>>       
 

Top

Dongguan Mingrui Ceramic Technology Co., Ltd.
TEL：+8618122974730
MB：+86 181 2297 4730 Tel：+86 746 3386888
Skype：+86 181 2297 4730
Email：admin@cerampart.com
ADD：No. 21, Chuangxing Road, Shangsha Second Industrial Zone, Chang'an Town, Dongguan City