High-Purity Alumina Ceramic Parts for Industrial Applications
Price:
as negotiated and agreed
MOQ:
as negotiated and agreed
Delivery Time:
depend on the actual product
Brand:
Dayoo
Product Description
Alumina Ceramic - Premium Industrial Material with Exceptional Chemical Resistance
Product Specifications
| Attribute | Value |
|---|---|
| Type | Alumina Ceramic Parts |
| Material | Alumina |
| Application | Industrial Ceramic |
| Properties | Electric insulation |
| Thermal Expansion Coefficient | 8.5 x 10-6 /K |
| Chemical Resistance | Excellent |
| Wear Resistance | Excellent |
| Mechanical Strength | High |
| Size | Customized |
| Dielectric Constant | 9.8 |
| Purity | 96%, 99% |
| Dielectric Strength | 14 kV/mm |
| Applications | High temperature and high voltage electrical insulators, wear-resistant components, cutting tools, biomedical implants |
| Corrosion Resistance | Excellent |
| Maximum Use Temperature | 1600°C |
| Shape | Cylinder |
| Flexural Strength | 350 MPa |
| Thermal Conductivity | 35 W/mK |
| Elastic Modulus | 380 GPa |
| Materials | 92% Alumina Powder |
| Dimensional Tolerance | ±0.001 mm |
| Transparency | Opaque |
| Density | 3.9 g/cm3 |
| Melting Point | 2040°C |
| Hardness | 9 Mohs |
| Compressive Strength | 2000 MPa |
Manufacturing Process
Our high-performance alumina ceramic is produced through precise engineering and controlled processes to achieve optimal purity, density, and microstructure:
- Powder Preparation
- High-purity Al₂O₃ powder (typically 99.5%+ purity) synthesized via Bayer process or chemical precipitation
- Optimized particle size distribution (submicron to a few microns) to enhance sintering activity
- Forming Techniques
- Dry Pressing: Suitable for simple shapes; powder compacted under high pressure (50-200 MPa)
- Isostatic Pressing (CIP/HIP): Uniform compaction for complex geometries using hydrostatic pressure
- Injection Molding: For intricate parts; Al₂O₃ powder mixed with binders, molded, and debound
- Slip Casting: Used for thin-walled components; aqueous slurry poured into porous molds
- Sintering
- Fired at 1500-1800°C (depending on purity) in air or controlled atmospheres
- Densification occurs via solid-state diffusion, achieving >98% theoretical density
- Grain growth is carefully managed to balance strength and toughness
- Post-Processing
- Precision machining (laser cutting, grinding) for tight tolerances
- Surface treatments (polishing, coating) to enhance functionality
Advanced manufacturing variants include:
- Hot Pressing (HP) or Spark Plasma Sintering (SPS) for nanocrystalline structures
- Additive Manufacturing: Emerging technology for customized ceramic components
This rigorous production process ensures our alumina ceramics meet the most demanding applications in aerospace, semiconductors, and biomedical fields.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dayoo Advanced Ceramic Co.,Ltd
Location
No. 6, Shuangjin Street, Qiubin Industrial City, Qiubin Street, Wucheng District, Jinhua, Zhejiang
Contact Person
Lu