Dayoo Advanced Ceramic Co.,Ltd
| Delivery Time | Negotiable |
| Payment Terms | Negotiable |
| Transparency | Opaque |
| Bulk Density | >3.63 |
| Method | lsostatic presure |
| Tensile Strength | 250 MPa |
| Alumina Content | 92% & 95% |
| Mechanical Strength | Very High |
| Hardness | 9 Mohs |
| Dielectric Constant | 9.8 |
| Dimensional Tolerance | ±0.001 mm |
| Precision Tolerance | High |
| Maximum Operating Temperature | 1,500°C |
| Surface Finish | Polished |
| Type | Nozzles |
| Properties | electric insulation |
| Size | Customized |
| Place of Origin | Made In China |
| Brand Name | Dayoo |
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Product Specification
| Delivery Time | Negotiable | Payment Terms | Negotiable |
| Transparency | Opaque | Bulk Density | >3.63 |
| Method | lsostatic presure | Tensile Strength | 250 MPa |
| Alumina Content | 92% & 95% | Mechanical Strength | Very High |
| Hardness | 9 Mohs | Dielectric Constant | 9.8 |
| Dimensional Tolerance | ±0.001 mm | Precision Tolerance | High |
| Maximum Operating Temperature | 1,500°C | Surface Finish | Polished |
| Type | Nozzles | Properties | electric insulation |
| Size | Customized | Place of Origin | Made In China |
| Brand Name | Dayoo | ||
| High Light | High Wear Alumina Ceramic ，Chemical Resistance Alumina Ceramic | ||
Our alumina ceramic insulation heat sink substrates are manufactured from 99.6% high-purity alumina material, specifically engineered for thermal management and electrical insulation requirements in high-power electronic devices. Featuring excellent thermal conductivity (24-30W/(m·K)) and ultra-high insulation strength (>15kV/mm), with precision-polished surfaces achieving roughness below Ra 0.1μm, these substrates represent the ideal solution for high-temperature, high-power applications including power semiconductors, LEDs, and IGBT modules.
Power Electronics: IGBT modules, MOSFETs, thyristor heat sinks
LED Lighting: High-power LED chip packaging substrates
New Energy Vehicles: Motor controllers, charging pile power modules
5G Communications: Base station power amplifier heat sinks
Industrial Control: Frequency converters, servo drive power units
⚡ Efficient Heat Dissipation: Thermal conductivity up to 30W/(m·K), 10× better than standard PCBs
⚡ Superior Insulation: Breakdown voltage >15kV/mm, volume resistivity >10¹⁴Ω·cm
⚡ High-Temperature Resistance: Continuous operation up to 850°C
⚡ Dimensional Stability: CTE 7.2×10⁻⁶/℃, excellent match with chips
⚡ Precision Machining: Flatness ≤0.02mm/50mm, laser-cuttable
| Parameter | Standard (96%) | High-Performance (99.6%) |
|---|---|---|
| Al₂O₃ Content | 96% | 99.6% |
| Thermal Conductivity (W/(m·K)) | 24 | 30 |
| Flexural Strength (MPa) | 300 | 400 |
| Dielectric Constant (1MHz) | 9.5 | 9.2 |
| Thickness Range (mm) | 0.25-5.0 | 0.25-5.0 |
| Maximum Size (mm) | 150×150 | 150×150 |
Powder Preparation: High-purity alumina powder (D50≤0.8μm)
Tape Casting: Precise slurry viscosity and thickness control
Isostatic Pressing: 200MPa high-pressure densification
Atmosphere Sintering: 1650°C hydrogen-protected sintering
Precision Machining: Double-side grinding + laser cutting
Surface Treatment: CMP polishing to Ra 0.1μm
Full Inspection: AOI + insulation testing
⚠ Professional Recommendations:
Soldering temperature <280°C, duration <10 seconds
Apply thermal grease to enhance thermal contact
Avoid mechanical impact and localized stress concentration
Storage humidity <60% RH
Recommend regular insulation checks (every 5,000 hours)
Technical Support: Thermal simulation analysis services
Rapid Response: 48-hour expedited delivery for standard sizes
Customization: Special shapes and metallization treatments available
Failure Analysis: SEM+EDS testing laboratory equipped
Q: How to select proper substrate thickness?
A: 0.63mm recommended for general power devices, ≥1.0mm for high-power applications
Q: Is double-side metallization possible?
A: Supports thick-film printing, thin-film sputtering, DBC and other metallization processes
Q: How to ensure reliability in vibration environments?
A: Recommend our patented edge reinforcement structure design
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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