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Customized Technical Ceramic Alumina Ceramic Al2O3 Ceramics

Our 99% purity alumina ceramic (Al2O3 ceramics) components are engineered for extreme environments, offering exceptional wear resistance, electrical insulation, and thermal stability up to 1500°C. Customizable for your specific machinery requirements.

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Product Introduction

1、Introduction

Alumina ceramics (Al₂O₃), also known as aluminum oxide ceramics, are one of the most widely used technical ceramics due to their excellent balance of mechanical, thermal, and electrical properties. With purity levels ranging from 85% to 99.9%, alumina ceramics are cost-effective yet high-performance materials for industries ranging from electronics to heavy machinery.

2、Key Properties of Alumina Ceramics

I. High Hardness & Wear Resistance

Vickers Hardness: 15-20 GPa (comparable to sapphire)

Superior abrasion resistance for long-lasting industrial components.

II. Excellent Thermal Stability

Maximum service temperature: 1700°C (3092°F)

Low thermal expansion (~8×10⁻⁶/°C), reducing thermal stress.

III. Electrical Insulation

Dielectric strength: 10-35 kV/mm (ideal for high-voltage applications).

Low electrical conductivity even at high temperatures.

IV. Chemical Inertness

Resistant to acids, alkalis, and corrosive gases (except HF and strong bases).

V. Mechanical Strength

Flexural strength: 300-400 MPa (higher in high-purity grades).

High Temperature 99% Alumina Al2O3 Ceramics Machinery Parts Customized

Why Choose Our Alumina Ceramic Parts?

Material Superiority: 99% Al2O3 composition ensures optimal mechanical properties

Precision Engineering: CNC grinding achieves ±1μm accuracy

Cost Efficiency: 15-20% material savings through optimized designs

Technical Support: DFMA analysis for component optimization

Quality Assurance
▸ 100% dimensional inspection with CMM (Zeiss CONTURA G2)
▸ Batch traceability with material certification (SGS/MSDS)
▸ RoHS/REACH compliant

Ceramic Properties

Properties	Units	Cordierite Ceramic	Mullite Ceramic	95%Alumina Ceramic	99%Alumina Ceramic	99.5%Alumina Ceramic	99.7%Alumina Ceramic	Silicon Nitride	Zirconia Ceramic
Colour		Yellow	White	White	Light yellow	Light yellow	Light yellow	Black	White
Density	g/cm3	1.9	2.6	3.6	3.8	3.8	3.9	3.2	6
Flexural Strength	Mpa	30	120	300	350	375	375	800	1100
Compressive Strength	MPa	350	500	2500	2800	2800	2554	2600	3000
Modulus of Elasicity(20℃）	Gpa	40	100	300	350	350	357	290	320
Max Use Temperature	°C	1200	1300	1400	1500	1500	1760	1300	1050
Thermal Condutivity	W(m.K)	1.3-1.8	2~6	20	30	30	33-38	25	3
Thermal Expansion Cofficient	10-6/°C	2.5-3	2.5-3	7.5	8	8.2	8.2	3	10
Thermal Shock Resistance	△T℃	300	150	140	150	200	223	600	250
Dielectric Strength	KV/mm	-	-	15	18	18	23.4	14	15
Dielectric Constant	Er	8	8	9	9.2	9.2	9.84	9	26

Production process

1. Grind and crush the raw materials to be slurry or powder

2. se-different method to making the slurry or powder into semi-finished products

3. Put the semi-finished products into the kiln for dewaxing and sintering;

4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.

5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery

95 alumina substrate

Certifications

95 alumina substrate

Our customers

Packaging and shipping

95 alumina substrate

Transport

Alumina AL2O3 Substrate Insulating Ceramic Substrate Thermally Conductive Ceramic Sheet

FAQ：

Q: Do you have the products in stock?

A: Some standard produce have in stock, such as ceramic band heater insulator; bobbin heater insulator and ceramic connector. But it needs to check according to your requirement.

Q: How do you pack the goods?

A: Our standard packaging is carton, we can customize it as per your requirement as well.

Q: How many days do you finish the sample?

A: Usually 15 business days (Including 8days for making furnaces and 7days for producing samples)

High Temperature Alumina Ceramic Block Ring