Description
| Category | Item | 99AluminaCeramic | 95AluminaCeramic |
| Main Composition | Al₂O₃ ≥ 99% | Al₂O₃ ≥ 95% | |
| Physical Properties | Density | 3.85 | 3.6 |
| Water Absorption % | 0 | 0 | |
| Sintering Temperature °C | 1700 | 1680 | |
| Hardness HV | 1700 | 1500 | |
| Flexural Strength (4pt) | >3500 | >3000 | |
| Compressive Strength Kgf/cm² | 30000 | 25000 | |
| Maximum Service Temperature °C | 1500 | 1400 | |
| Thermal Properties
|
Thermal Expansion Coefficient | 8 | 7.8 |
| 10⁻⁶/°C | 8 | 7.8 | |
| 0-1000°C | 8 | 7.8 | |
| Thermal Shock Resistance (°C) | 200 | 220 | |
| Thermal Conductivity W/m·k | 31 | 22 | |
| Electrical Properties | Volume Resistivity Ω·cm | >10¹² | >10¹² |
| Dielectric Breakdown Strength Kv/m | 18 | 16 | |
| Dielectric Constant 1MHz (E) | 9.2-10.5 | 9.0-10 |
Product Dimensions
| Length(mm) | Width(mm) | Thickness(mm) | Specification Size(mm) |
|---|---|---|---|
| 50 | 50 | 5 | 50×50×5 |
| 50 | 50 | 6 | 50×50×6 |
| 50 | 50 | 7 | 50×50×7 |
| 50 | 50 | 8 | 50×50×8 |
| 50 | 50 | 9 | 50×50×9 |
| 50 | 50 | 10 | 50×50×10 |
| 50 | 50 | 15 | 50×50×15 |
| – | – | – | Customizable for additional sizes |
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

