Alumina filament

Alumina filament

Alumina filament is a great way to produce 3D printed parts. Indeed, it has been possible for sometime for engineers and designers to create complex shapes and parts with fine details and utilise a 3D printer to manufacture them.

However, now an engineer can create a CAD file, then easily 3d printing alumina filament to create the required parts. As with all ceramics; Alumina and Zirconia have fabulous material properties that are resistant to heat, chemical, electrical and physical wear.

Widely used in the ceramic field, alumina is a wear  resistant material. Alumina can resist extreme temperatures and it is used to produce parts like a venturi for instance and other high temperature parts.  Because it is an inert material, it is both a good thermal conductor and a good electrical insulator.

3D printed alumina and zirconia and moreover ceramic materials in general are available on all of our printers. From an entry level desk top printer to one that can produce complex geometries in production volumes.

Alumina filament properties

Alumina filament and generally ceramics used in 3D printing share the material properties used in conventional processes. So you will see it is possible to have 3D printed zirconia and alumina. Ceramics have the following properties;

  • Good mechanical strength
  • High hardness
  • Resistance to thermal shock
  • Very resistance to wear and high temperatures
  • Good electrical insulation
  • Resistant to corrosion; liquids, gas and abrasion
  • Biocompatible
  • Review the properties of ceramic materials used in our printers by visiting our materials guide.


The use of alumina filament to create parts can be used for many applications. Firstly, typical applications include, aerospace, aviation, investment casting, electronic, optical, medical and luxury markets. Secondly and most controversially, ceramic materials should replace many parts made of metal. Certainly, we believe it is likely these applications would benefit from the material properties of technical ceramics. In short, if you would like to discuss a project where the material properties of ceramic could help please get in touch.

When scientific research focuses on 3D printed zirconia and alumina

As we know 3D printing offers so many opportunities for product development. And so it has become a flourishing field for research. Here, our purpose is to give you the opportunity to read these scientific articles regarding 3d printing, stereolithography, technical ceramics and all kind of applications.

Building parts with an optimized design allows more efficiency in their applications. A 3D printed part allows more compact assemblies with a better optimal integration targeting a significant reduction in the total mass. Indeed, there are many examples of this practise in the field of aeronautics.

Thermo-mechanical properties of 3D printed ceramic parts

As such, the tool of choice for precise parts made of ceramic is laser Stereolithography (SLA). This is due to the accuracy and repeatability of SLA. To provide weight to this fact this study provides details on the stability of the thermo-mechanical properties of 3D printed ceramic parts. As a short summary; to conduct this study three-dimensional parts were printed then mechanically tested to obtain tensile strengths (<1000MPa) and good hardness (>13 GPa) demonstrate excellent results. Impressively a densification measure was at 98% after sintering.

Anticipating alumina filaments’ mechanical and thermal properties

Another area of significant and interesting research evaluated the elastic and thermal properties of SLA 3D printed alumina. Users of 3DCeram’s alumina formulation developed several simulation models to anticipate its mechanical and thermal properties. The outcome proposes a predictive model that accounts for variation of the microstructure during the manufacturing process ensuring predictable and repeatable results. Full details of the study are available through the authors published research.

Structural anisotropy of 3D printed parts

Structural anisotropy of 3D printed parts is a key consideration. The purpose of this study is to acknowledge the affect of varying build direction of parts printed in zirconia.

3D Matters have searched the market for the best fully functional and proven capable technologies. It is for this reason that we are proud to work with the leading manufacturers of Additive Manufacturing.

In conclusion, we specialise in the design, printing and post processing of hard-wearing materials including ceramic and metals. Could 3D printed zirconia and alumina filaments be an advantage to your next project? We often have webinars planned so that we can share and demonstrate more about the technology. Feel free to register for future events on our contact page

alumina nozzle
Alumina nozzle

Have a project similar to this?

We’re always happy to discuss potential new projects and ideas. Get in touch, either via email or phone and we can help make your idea a reality.

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