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

Product Details

Place of Origin: Made In China

Brand Name: Dayoo

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Product Details

Product Description

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Cylinder Alumina Products
                              

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

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

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 0

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Alumina Ceramic

Zirconia Ceramics

Silicon Nitride Ceramics

Silicon Carbide Ceramics

Ceramic Beams

Ceramic Arm

Ceramic Nozzles

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

Cylinder Alumina Products