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Zetamix Alumina

Ref.: ZETAMIX-ALUMINA-175-500

299.00 €

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Approximate delivery date: Thursday 26 December

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Nanoe is a renowned French company founded in 2008 and specialised in the production of innovative materials. It stands out mainly in the production of ceramic powders, with a production capacity of more than 100 tons of high purity ceramic powder per year.

Video 1: Meet Zetamix By Nanoe. Source: Nanoe.

Taking advantage of the high degree of know-how in the field of ceramics, in 2018 they created the Zetamix brand, the first brand of filaments with technical ceramics aimed at producing all-ceramic parts in an accessible and affordable way.

Nanoe currently has three ceramic filaments for technical applications: White Zirconia, Black Zirconia and Alumina.

	White zirconia	Black zirconia	Alumina	316L	H13
Impact and flexural strength
Wear resistance
Electrical insulation
Chemical Inertia
Estheticism
High temperature resistance
Thermal conduction

Image 1: Comparison of Zetamix ceramic filaments. Source: Nanoe

Zetamix Alumina is a filament consisting of 83% by weight of alumina powder and 17% by weight of binder. Alumina is the most common aluminium oxide and the most widely used in industry and engineering applications. It is mainly noted for its high heat resistance and melting point, which makes it a refractory material suitable for high temperature applications.

Collector

Image 2: Gas collector printed with Zetamix Alumina and sintered. Source: Nanoe

Due to its high hardness (9 Mohs) and abrasion resistance, it is also often used in abrasive elements and is an economical alternative to synthetic diamond.

However, one of the most interesting applications in the field of 3D printing is the production of catalytic filters or air purifiers. The high capacity of alumina to absorb water or to act as a catalyst for certain chemical reactions such as the Claus process, together with the capacity of 3D printing to obtain parts with a high surface to volume ratio, make it an economical and efficient technology for the production of catalytic filters.

filter

Image 3: Filter printed with Zetamix Alumina filament. Source: Nanoe

Zetamix ceramic filaments make it possible to obtain fully ceramic parts easily in three steps:

Printing: Zetamix ceramic filaments can be easily printed on virtually any direct extruder printer, as they require printing temperatures between 150 and 180 ºC and a base temperature of 40 ºC.

Image 4: impression of a ceramic piece. Source: Nanoe

Debinding: Debinding consists of two stages, chemical debinding in acetone using an ultrasonic bath such as Zetadebinder and thermal debinding prior to sintering.
Sintering: Finally, the part is sintered by heat treatment to obtain a completely ceramic part.

Alumina parts

Image 5: Parts printed on Zetamix Alumina and sintered. Source: Nanoe

Ceramic printing has been a great challenge due to its complexity and high cost. Thanks to Zetamix ceramic filaments, it is possible to obtain complex all-ceramic parts in an economical and simple way.

General information
Manufacturer	Nanoe (Zetamix)
Material	Ceramic + binder
Format	500 g
Density	2.5 g/cm³
Filament diameter	1.75 / 2.85 mm
Filament length	(Ø 1.75 mm - 0.5 Kg) ± 83 m / (Ø 2.85 mm - 0.5 Kg) ± 31 m
Amount of filler (volume)	52 %
Amount of filler (mass)	83 %

Mechanical properties
Elongation at break	- %
Tensile strength	- MPa
Tensile modulus	- MPa
Flexural strength	- MPa
Flexural modulus	- MPa
Surface hardness	Shore 40 D

Printing properties
Printing temperature	180 ºC
Print bed temperature	40 ºC
Cooling fan	100 %
Recommended printing speed	30 mm/s
Recommended nozzle diameter	Min. 0.4 mm

Thermal properties
Softening temperature	- ºC

Sintering properties
Container	Refractory crucible
Refractory powder	Alumina
Maximum temperature	1550 ºC

Specific properties
Radiation protection (without sintering)	✗

Other
HS Code	8108.9060

It is recommended to carefully follow the design guide available in the download tab when designing the parts to be made with Zetamix Alumina.

Printing:

When printing, the following parameters must be applied:

Printing temperature: 110 - 130 ºC
Base temperature: 40 ºC
Nozzle size: 0.4 - 1.0 mm
Coating height: 0.3 - 0.1 (0.15 recommended)
Print speed: 20 - 35 mm/s
Shrinkage: 1 mm to 20 mm/s
Perimeters: At least 2
Filling: 5 % - 100 % Filling: 5 % - 100 % Filling: 5 % - 100 % Filling: 5 % - 100
Top and bottom wall thicknesses: At least 1 mm
Substrates: Supports: Supports in the same material and in soluble materials.
Adhesion to backing: Glass backing and Magigoo adhesive recommended.

Zetamix ceramic filaments are only compatible with direct extruders. The spool should be placed on top of the printer so that the path between the spool and the extruder is as straight as possible.

It is advisable to reduce the extruder tension to a minimum to prevent the filament from deteriorating.

Debinding:

Debinding consists of two stages, a chemical and a thermal stage.

Chemical debinding: The part must be treated for at least 2 hours in an ultrasonic bath with acetone at 40 ºC. Afterwards, the piece must be left to air dry for at least 2 hours. If the treatment has been successful, the piece should lose 5% of its weight.

Heat debinding: The pieces must be placed in a crucible with refractory powder to support the shrinkage of the piece and to serve as a support during the process. A heat treatment should then be applied consisting of heating the parts from 20 ºC to 500 ºC at a rate of 8 ºC/hr. For small parts, the debinding time can be reduced by applying the following heat treatment: