Mechanical Strength Alumina Ceramic Plate Insulation Board Ceramic Substrate
Alumina Ceramic Plate insulation board ceramic substrate
Alumina is the most commonly used technical ceramic material. Thanks to its very good electrical insulation, dielectric strength, and high-temperature resistance up to 1500 °C, Alumina Ceramic is ideal for electrical applications and high-temperature applications.
Alumina ceramics feature:
- Good mechanical strength
- Good heat conductivity and fire resistance
- Good corrosion and wear resistance
- Very good electric insulatio
- Good surface with high smoothness/flatness and less porosity
- High resistance to heat shock
- Low warpage and camber
- Stable in very high temperature and corrosive chemical
- Very stable breaking strength and shape/dimension variance
Aluminum oxide ceramic plates have a wide variety of applications:
• Alumina plates are hard enough to become armor for personnel or vehicles.
• The corrosion resistivity of alumina plates makes them a great material for the chemical industry.
• Used as a material for industrial furnaces due to its ability to maintain its hardness at high temperatures.
• Used for making parts for CVD thin films, ion implants, photolithography, and semiconductor parts.
• In traditional industries, alumina ceramics are ideal for products such as injector tubes, gas nozzles, and insulators.
• Network resistor,
• Chip resistor,
• Chip resistor array
• Thick-film hybrid IC
• Thin-film hybrid IC
• General isolator
Product Parameter
| Alumina Ceramic Substrate Material Property | ||||
| Item | Unit | 96% Al2O3 | 99.6% Al2O3 | |
| Mechanical Properties | ||||
| Color | / | / | White | Ivory |
| Density | Drainage Method | g/cm3 | ≥3.70 | ≥3.95 |
| Light Reflectivity | 400nm/1mm | % | 94 | 83 |
| Flexural Strength | Three Point Bending | MPa | >350 | >500 |
| Fracture Toughness | Indentation Method | MPa·m1/2 | 3 | 3 |
| Vickers Hardness | Load 4.9N | GPa | 14 | 16 |
| Young's Modulus | Stretching Method | GPa | 340 | 300 |
| Water Absorption | % | 0 | 0 | |
| Camber | / | Length ‰ | T≤0.3: ≤5‰, Others: ≤3‰ | ≤3‰ |
| Thermal Properties | ||||
| Max. Service Temperature (non-loading) | / | ºC | 1200 | 1400 |
| CTE (coefficient of thermal expansion) | 200-800ºC | 1×10-6/ºC | 7.8 | 7.9 |
| Thermal Conductivity | 25ºC | W/m·K | >24 | >29 |
| Thermal Shock Resistance | 800ºC | ≥10 Times | No Crack | No Crack |
| Specific Heat | 25ºC | J/kg·k | 750 | 780 |
| Electrical Properties | ||||
| Dielectric Constant | 25ºC, 1MHz | / | 9.4 | 9.8 |
| Dielectric Loss Angle | 25ºC, 1MHz | ×10^-4 | ≤3 | ≤2 |
| Volume Resistivity | 25ºC | Ω·cm | ≥10^14 | ≥10^14 |
| Dielectric Strength | DC | KV/mm | ≥15 | ≥15 |
| Alumina Ceramic Substrate Production Specifications | |||||||
| 99.6% Al2O3 | |||||||
| Thickness (mm) | Maximum Size (mm) | Shape | Molding Technique | ||||
| As Fired | Lapped | Polished | Rectangular | Square | Round | ||
| 0.1-0.2 | 50.8 | 50.8 | √ | √ | Tape Casting | ||
| 0.25 | 114.3 | 114.3 | √ | Tape Casting | |||
| 0.38 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| 0.5 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| 0.635 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| Other special thicknesses within the thickness range of 0.1-0.635mm can be achieved by lapping. | |||||||
| 96% Al2O3 | |||||||
| Thickness (mm) | Maximum Size (mm) | Shape | Molding Technique | ||||
| As Fired | Lapped | Polished | Rectangular | Square | Round | ||
| 0.25 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| 0.3 | 120 | 114.3 | 114.3 | √ | Tape Casting | ||
| 0.38 | 140×190 | √ | Tape Casting | ||||
| 0.5 | 140×190 | √ | Tape Casting | ||||
| 0.635 | 140×190 | √ | Tape Casting | ||||
| 0.76 | 130×140 | √ | Tape Casting | ||||
| 0.8 | 130×140 | √ | Tape Casting | ||||
| 0.89 | 130×140 | √ | Tape Casting | ||||
| 1 | 280×240 | √ | Tape Casting | ||||
| 1.5 | 165×210 | √ | Tape Casting | ||||
| 2 | 500×500 | √ | Tape Casting | ||||
| Other special thicknesses within the thickness range of 0.1-2.0mm can be achieved by lapping. | |||||||
| Alumina Ceramic Substrate Product Tolerance | ||||
| Item | Substrate Thickness (mm) | Standard Tolerance (mm) | Best Tolerance (mm) | Laser Cutting Tolerance (mm) |
| Length And Width Tolerance | / | ±2 | ±0.15 | |
| Thickness Tolerance | T<0.3 | ±0.03 | ±0.01 | |
| 0.30-1.0 | ±0.05 | ±0.01 | ||
| T>1.0 | ±10% | ±0.01 | ||
| Alumina Ceramic Substrate Surface roughness | |||
| Material | Surface Roughness (μm) | ||
| As Fired | Lapped | Polished | |
| 96% Al2O3 | Ra 0.2-0.75 | Ra 0.3-0.7 | Ra ≤0.05 |
| 99.6% Al2O3 | Ra 0.05-0.15 | Ra 0.1-0.5 | Ra ≤0.05 |
| Inspection Of Bare Ceramic Substrates | ||
| Test ltems | Inspection Tool | Inspection Standard |
| Appearance | VisualInspection,Microscope | In accordance with the drawing |
| Length And Width | Vernier Caliper | |
| Thickness | Thickness Gauge,Micrometer | |
| Camber | Digimatic lndicater | |
| Surface Roughness | Surface Roughness Meter |
|
Production Flow Chart
FAQ
Q1:Why us?
- Professional manufacturer since 2003.
- Strict quality control on production process and tolerance.
- Free samples available
- Customized production based on your drawing or specification
- On-time delivery and reliable support and service
- Inventory available for quick shipment
- We keep confidentiality of all the drawings and business information between us.
Q2:Are you a trading company or a manufacturer?
A: We are a manufaturer.
Q3:Can you provide the free samples?
A3: Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.
Q4: Do you accept customized production based our specification?
A4: Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea, we will work out the drawing for you.
Q5: What's the delivery time?
A5: 7 working days for standard products 30 days for customized products.
Q6: What is the MOQ?
A6: No limit to the quantity. We can offer the best proposal and solutions according to your condition.
Q7: What is the payment terms you accept?
A7: T/T,LC,Western Union,moneygram are acceptable.
Q8: How to deal with the faulty?
A8: Firstly, Our product are produced in strict quality control system and the defective rate will be less than 2%.
If there are problems with the product, we will provide free replacement.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.