Abstract
3D inkjet printing is moving from a technology of rapid prototyping to rapid manufacturing. The introduction of ultraviolet curable composites filled with functional ceramics could expand the possibilities of this technology. In this work, a simple and scalable process was investigated as a template for the production of inkjet printable functional ceramics. Pyrogenic alumina particles with an average size of 13 nm, 35 nm and 100 nm were used as fillers in an acrylate mixture. The physical coating of the ceramics with 2-[2-(2-methoxyethoxy)ethoxy] acetic acid results in a low-viscosity dispersion with a ceramic content of up to 2 vol%, Newtonian behavior and surface tension within the limits allowed for inkjet printing. The material has sufficient stability for printing tensile specimens. Tensile tests have shown that modulus of elasticity, tensile strength and toughness can be kept constant despite the light scatter caused by the particles. The final production steps could be reduced to grinding and drying of the powders, their resuspension in the organic matrix and inkjet printing. The process can be used in an industrial-scale production of materials for abrasion-resistant components with adapted tribology.
Highlights
Additive manufacturing is changing the landscape of production in areas like automotive, aerospace and medical devices [1,2,3,4,5]
The technology must be carefully selected according to the application [6,7,8,9]. This leads to the development of further new and sophisticated production methods. When it comes to printing ever smaller structures [10,11] or simplifying the process by using physical conditions to meet economic requirements [12,13]. 3D inkjet printing differs from the above-mentioned production methods in that it allows several materials to be deposited in one process step, which could enable the production of fully functional and complete components in one printing process [14,15,16]
Conclusions size the particlesproduced produced by pyrolysis waswas adjusted during grinding in TheThe size of of the particles bythe theflame flamespray spray pyrolysis adjusted during grinding in the ball mill
Summary
Additive manufacturing is changing the landscape of production in areas like automotive, aerospace and medical devices [1,2,3,4,5]. Techniques such as fused deposition modeling, selective laser sintering, stereolithography, electron beam melting and 3D printing are increasingly used [4,5]. The technology must be carefully selected according to the application [6,7,8,9] This leads to the development of further new and sophisticated production methods. The composition of most materials is confidential, it is likely that a large
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