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Wear-Resistant Alumina Ceramic With High Flexural Strength And Low Thermal Expansion Coefficient
Wear-Resistant Alumina Ceramic With High Flexural Strength And Low Thermal Expansion Coefficient
Specifications
Place of Origin :
Made In China
Brand Name :
Dayoo
MOQ :
Negotiable
Price :
Negotiable
Delivery Time :
Negotiable
Payment Terms :
Negotiable
Type :
Alumina Ceramic Parts
Application :
Industrial Ceramic
Electrical Resistivity :
10^14 Ohm-cm
Max Operating Temperature :
1500°C
Tensile Strength :
200 MPa
Dielectric Loss :
0.0002
Precision Tolerance :
High
Wear Resistance :
High
Low Thermal Expansion :
Excellent
Dielectric Strength :
15 kV/mm
Thermal Expansion Coefficient :
7.2 x 10^-6 /K
Density :
3.9 g/cm3
Dimensional Tolerance :
±0.001 mm
Alumina Content :
92% & 95%
Manufacturing Method :
Dry Pressing or Isostatic Pressing
Description

Wear-Resistant Alumina Ceramic With High Flexural Strength And Low Thermal Expansion Coefficient

Product Introduction

This product is a precision structural part made of high-purity alumina ceramic (Al₂O₃ content ≥ 95%). It is manufactured using the cold isostatic pressing forming and high-temperature sintering processes. It has a milky-white cylindrical shape, with a smooth and flawless inner wall. The outer wall is equipped with symmetrical clamping grooves and strip-shaped through holes. It possesses excellent mechanical strength and high-temperature resistance performance.

Core Advantages

  • Hardness reaches HRA85 - 90, and wear resistance is 3 - 5 times better than that of metal materials.
  • Resistant to high temperatures up to 1600℃, with a thermal expansion coefficient as low as 7.5×10⁻⁶/℃.
  • Insulation resistance ＞ 10¹⁴Ω・cm, dielectric loss ＜ 0.001.
  • Density ≥ 3.6g/cm³, water absorption rate ＜ 0.01%.

Specification Parameter Table

Parameter Item Value Unit
Outer Diameter 50±0.2 mm
Inner Diameter 30±0.1 mm
Length 80±0.3 mm
Surface Roughness Ra0.8 μm
Flexural Strength ≥350 MPa

Application Fields

Motor shaft sleeves for new energy vehicles, semiconductor wafer carriers, guide wheels for photovoltaic silicon wafer cutting, puncture components for medical devices.

Process Flow

Raw material proportioning → Ball milling to make pulp → Spray granulation → Cold isostatic pressing forming → Debinding and sintering (1650℃) → Precision CNC machining → Ultrasonic cleaning → Laser detection.

Instructions for Use

  • Avoid knocking with hard objects during installation. It is recommended to use special tooling for positioning.
  • The working temperature should not exceed 1500℃, and sudden thermal shocks should be avoided.
  • When cleaning, use absolute ethanol for ultrasonic cleaning. Strong acids and alkalis are prohibited.

After-sales Service

Provide a 1-year quality guarantee, support free size re-inspection. For non-human-caused damages, free return and exchange are available.

FAQ

Q: Can special sizes be customized?
A: Customization within the range of 10 - 200mm in diameter is supported, with a lead time of 7 - 15 days.

Wear-Resistant Alumina Ceramic With High Flexural Strength And Low Thermal Expansion Coefficient

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Wear-Resistant Alumina Ceramic With High Flexural Strength And Low Thermal Expansion Coefficient

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Product Detail
Place of Origin :
Made In China
Brand Name :
Dayoo
MOQ :
Negotiable
Price :
Negotiable
Delivery Time :
Negotiable
Payment Terms :
Negotiable
Contact Supplier
Wear-Resistant Alumina Ceramic With High Flexural Strength And Low Thermal Expansion Coefficient

Dayoo Advanced Ceramic Co.,Ltd

Verified Supplier
2 Years
zhejiang, jinhua
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter
Main Products :
Alumina Ceramic, Zirconia Ceramics, Silicon Nitride Ceramics
Total Annual :
>1000000
Employee Number :
>100
Certification Level :
Verified Supplier
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