· Flexural strength | · Chemical resistance | · Electrical insulation | · Corrosion resistance | · Dielectric strength |
· Wear resistance | · Temperature resistance | · Thermal conductivity | · High voltage | · Hardness... |
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 | / | / |
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 |
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Customization & Machining Service
As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of ceramic sheet,plates,block or other ceramic parts.High quality,Factory price, on-time delivery, High composition of ceramics
FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-10 days, pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; L/C.
7. Shipment: by sea, by air, by courier, by post, etc.
Feedback
1. For any query or doubt, please contact us firstly, we will update with you soon;
2. For any other satisfaction, please also feedback to us, which could improve our service better and better.
For more information about ceramics parts,please contact our engineers in time >>> |
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