Dayoo Advanced Ceramic Co.,Ltd
| Delivery Time | Negotiable |
| Payment Terms | Negotiable |
| Machinability | Difficult |
| Maximum Use Temperature | 1,400°C |
| Volume Resistivity | 10^14 Ω·cm |
| Precision Tolerance | High |
| Thermal Conductivity | 35 W/mK |
| Electrical Resistivity | 10^14 Ohm-cm |
| Density | 3.9 g/cm3 |
| Properties | electric insulation |
| Material | Alumina Ceramic |
| Type | Alumina Ceramic Parts |
| Transparency | Opaque |
| Hardness | 9 Mohs |
| Flexural Strength | 350 MPa |
| Compressive Strength | 2500 MPa |
| Water Absorption | 0 |
| Place of Origin | Made In China |
| Brand Name | Dayoo |
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Product Specification
| Delivery Time | Negotiable | Payment Terms | Negotiable |
| Machinability | Difficult | Maximum Use Temperature | 1,400°C |
| Volume Resistivity | 10^14 Ω·cm | Precision Tolerance | High |
| Thermal Conductivity | 35 W/mK | Electrical Resistivity | 10^14 Ohm-cm |
| Density | 3.9 g/cm3 | Properties | electric insulation |
| Material | Alumina Ceramic | Type | Alumina Ceramic Parts |
| Transparency | Opaque | Hardness | 9 Mohs |
| Flexural Strength | 350 MPa | Compressive Strength | 2500 MPa |
| Water Absorption | 0 | Place of Origin | Made In China |
| Brand Name | Dayoo | ||
| High Light | Long Circle Type Alumina Products ，Long Circle Alumina Products ，Customized Alumina Products | ||
Alumina ceramic insulating components are advanced ceramic materials primarily composed of high-purity aluminum oxide (Al₂O₃), offering excellent electrical insulation, high-temperature resistance, and mechanical strength. With Al₂O₃ content typically ranging from 90% to 99.9%, higher purity grades deliver superior insulation performance, making them ideal for high-voltage, high-frequency, and high-temperature electrical applications.
Electronics & Electrical Industry: High-voltage insulators, circuit substrates, vacuum switch tubes
Energy Sector: Power transmission insulation components, transformer insulation parts
Semiconductor Equipment: Wafer carriers, plasma etching components
Industrial Machinery: Heating element insulation supports, sensor protection sleeves
Aerospace & Defense: Rocket engine insulation coatings, high-voltage isolation components
✅ Superior Insulation: Volume resistivity >10¹⁴ Ω·cm, dielectric strength >15 kV/mm
✅ High-Temperature Resistance: Long-term use up to 1600°C, short-term up to 1800°C
✅ Chemical Stability: Resistant to acids, alkalis, and most solvents
✅ High Mechanical Strength: Flexural strength 300-400 MPa, Mohs hardness 9
✅ Low Dielectric Loss: Stable performance even in high-frequency environments
| Parameter | Value |
|---|---|
| Al₂O₃ Content | 90%-99.9% |
| Bulk Density | 3.6-3.9 g/cm³ |
| Flexural Strength | 300-400 MPa |
| Dielectric Constant | 9-10 (1MHz) |
| Thermal Expansion Coefficient | 7-8×10⁻⁶/°C |
| Max Operating Temperature | 1600°C (long-term) |
Raw Material Preparation: High-purity Al₂O₃ powder mixing with forming agents
Forming Process: Dry pressing / Isostatic pressing / Injection molding (for complex shapes)
Sintering Process: High-temperature densification at 1600-1800°C
Precision Machining: CNC grinding, laser cutting, polishing
Quality Control: Insulation withstand voltage test, dimensional accuracy inspection
⚠️ Precautions:
Avoid thermal shock (temperature change rate <100°C/min)
Prevent mechanical stress concentration during installation to avoid cracking
Not recommended for strong acid (e.g., hydrofluoric acid) environments
Store in a dry environment to maintain insulation properties
We provide:
Technical support: Customized insulation solutions
Fast response: Solutions within 48 hours
Long-term cooperation: Bulk order discounts & maintenance services
Q: What is the maximum voltage alumina ceramic insulators can withstand?
A: Standard products can endure 15-30 kV/mm, with higher ratings available upon special treatment.
Q: What are the advantages over plastic insulation materials?
A: Higher temperature resistance, no aging, and greater mechanical strength, suitable for harsh environments.
Q: Can custom complex-shaped parts be manufactured?
A: Yes, CNC machining and injection molding enable production of intricate insulating components.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e... We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e...
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