Introduction of Alumina

Alumina (Al2O3) is the most widely used and best-selling material in high-tech applications. It is one of the most concerned 3D printing materials in 3D printing because of its excellent mechanical strength, pressure and wear resistance, high hardness and low cost. As shown in Fig. 1, the ceramic green bodies were printed by extrusion printing process with Al2O3 and SiC materials.

Extrusion printing of ceramic green bodies. (a) Ceramic green body being printed; (b) Printed ceramic green body.Fig. 1. Extrusion printing of ceramic green bodies. (a) Ceramic green body being printed; (b) Printed ceramic green body. (Wu J; et al., 2023)


CD BioSciences is a professional technology company focusing on 3D printing services, providing Al2O3 3D printing materials in different forms, such as Al2O3 powder and slurry. And it can customize different purity Al2O3 materials according to your needs.

Al2O3 materials have a series of superior performance and are widely used in the production of insulators, molds, refractory materials, semiconductor components and medical implants. Traditional processing of Al2O3 ceramic materials has problems of difficult forming, low precision, low efficiency, and serious waste. The combination of 3D printing technology and Al2O3 ceramic materials can greatly improve the freedom and flexibility of design, meet the needs of different users, and reduce the waste of materials and energy. Therefore, the use of 3D printing technology to produce ceramic parts has become an important direction for the molding of ceramic materials represented by Al2O3. The 3D printing technologies commonly used for Al2O3 materials include SLA, SLS, technology, 3DP and so on.

The performance of Al2O3 materials provided by CD BioSciences and the finished products are superior, and the parameters are in line with industry standards. CD BioSciences can not only customize Al2O3 materials of different purity according to your needs, but also customize composite materials based on Al2O3.

  • Density
  • Young's modulus
  • Bending strength
  • Fracture toughness
  • Thermal conductivity

Here is a list of the Al2O3 materials offered by CD BioSciences to support your production.

Place your order here.

Cat# Product Name Price
AL0001 Alumina Inquiry
Inventory: In-stock
Form: Slurry
Density, g/cm3: 3.99
Young's Modulus, GPa: 300
Hardness: HV10 1450
Surface Roughness, µm Ra: 0.4
Thermal Expansion Coefficient, µm/(m.°C): 7-8
Thermal Conductivity, W/(m.K): 37
Electrical Resistivity: ≈ 1014 Ω.m-cm
Relative Permittivity: Measured at 7.5 GHz: 9.9
Fracture Toughness, MPa. m1/2: 4-5
Max Working Temperature, °C: 1650
Four-Point Bending Strength , MPa: 430
Description: Alumina has excellent properties such as high hardness, electrical insulation, biocompatibility, corrosion resistance and high temperature resistance. Alumina is widely used for aerospace and healthcare.

*If the Al2O3 materials offered above can not meet your needs, please contact us for our exclusive Al2O3 materials customization service right now. All services are available on a 24/7/365 basis.

Applications of Our Alumina

Our Al2O3 materials have many advantages and are applied in a wide range of industries.

  • Architecture industries
  • Aerospace industries
  • Medical industries
  • Chemical industries

Advantages of Our Alumina

  • High hardness and resistance.
  • High form accuracy.
  • Shorten process cycle.
  • Low cost.
  • Complex structure.

CD BioSciences focuses on providing Al2O3 materials with excellent mechanical strength, insulation resistance, hardness, wear resistance, corrosion resistance and high temperature resistance, and is prepared at any time to meet your high precision and individual needs. 3D printing Al2O3 materials have a wide range of application prospects and will lead to the innovation and development of the ceramic industry. If you have any requirements about our Al2O3 materials, please contact us.


  1. Wu J.; et al. (2023). SiC Nanoparticles Strengthened Alumina Ceramics Prepared by Extrusion Printing. Materials. 16(6):2483.
For research use only, not intended for any clinical use.