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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

Name: WearResistant Alumina Ceramic With High Flexural Strength And Low Thermal Expansion Coefficient
Brand: Dayoo
Price: 1 USD

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

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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

Product Tags:

Cylinder Alumina Products

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