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Product Description
| Alumina Ceramic Introduction: Alumina Ceramic Ring is formed through dry pressing/pressurized sintering and subjected to high-temperature sintering (at 1600–1750℃). Common purity levels for this product range from 95%, 99%, to 99.5% Al₂O₃. |
Alumina Ceramic Ring: 1.High hardness and wear resistance: Vickers hardness ranging from 1800 to 2000 HV 2.High-temperature oxidation resistance: Long-term operating temperature range: 1200–1400℃. 3.Excellent electrical insulation: Volume resistivity > 10¹³ Ω·cm |
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| Alumina ceramic advantages: 4. Corrosion resistance: Resistant to acids, alkalis, salt solutions and most molten metals. 5. Dimensional stability: Low thermal expansion coefficient (~7×10⁻⁶/K), and the dimensional accuracy after sintering can reach ±0.1%. |
Alumina ceramic application: Shape: Flat ring, stepped ring, flange ring, ring with groove, thin-walled ring (the wall thickness can be as low as 0.3 mm). Process: Dry pressing → Isostatic pressing → CNC fine grinding / laser cutting |  |
氧化铝
Alumina
Alumina Purity | 92% | 95% | 96% | 99% | 99.6% |
颜色 Color | White | White | White | Ivory White | White |
体积密度 Volume density(g/cm3) | 3.45 | 3.5 | 3.7 | 3.75 | 3.9 |
吸水率 Water Absorption | 0 | 0 | 0 | 0 | 0 |
抗弯强度 Flexural Strength | 300Mpa | 300Mpa | 320Mpa | 330Mpa | 330Mpa |
维氏硬度 Vickers hardness | 1300 | 1400 | 1400 | 1800 | 1800 |
介电常数 Dielectric Constant (at 1MHZ 25℃) | 10 | 10 | 10 | 10 | 10 |
弹性模量 Modulus of elasticity | 350Gpa | 350Gpa | 350Gpa | 370Gpa | 370Gpa |
热导率 thermal conductivity (30℃) | 18W/M.K | 24W/M.K | 24W/M.K | 25W/M.K | 28W/M.K |
体积电阻率 Volume resistivity | 10^14Ω•cm | 10^14Ω•cm | 10^14Ω•cm | 10^14Ω•cm | 10^15Ω•cm |
介电强度 Dielectric strength | 20KV/mm | 20KV/mm | 20KV/mm | 20KV/mm | 30KV/mm |
Company Profile
Packaging & Shipping
Packing Details | We will packing by professional export packing,safety against breakage, finally into the wooden cases/ carton/pallet or customized package. We have ERP authentication. |
Delivery Details | We can deliver by SEA,air,rail transportation,the China-Europe Railway Express etc. TNT, DHL,UPS, FEDEX, EMS，S.F EXPRESS etc. |
| 1. Sample service | 2. Optimal price | 3. Customized logo |
| 4. Fast feedback | 5. Customized size | 6. Safety package |
| 7. ISO9001 | 8. Aftersale service | 9. Low procurement risk |
