Mechanism of Bonding in Seashell Powder Based Ceramic Composites Used for Binder-Jet 3D Printing

Abstract

Singamneni et al., Bioceram Dev Appl 2018, 8:1 DOI: 10.4172/2090 Volume AbstractBinder-jet 3D printing responses of sea-shell powder based ceramic composites have been evaluated considering the material consolidation mechanisms and mechanical characterisations. Initial experimental printing trials are done manually, varying the composition of the composite powders from 5% to 50% of the seashell powder and the rest plaster. Overall, the seashell and plaster combinations worked well in terms of achieving the necessary green strengths within the binder-jet process conditions. Scanning electron microscopy and 3-point bending results indicated no significant loss of properties at lower levels of the seashell component, but the strength decreased beyond the 25% mark. The optimum levels of seashell powder are found to be within 15-20% by weight in terms of the best compression strengths. Neat sea-shell powder however goes too sticky immediately after the interaction with the binder liquid and does not show evidence of any binding mechanism that can be accelerated.

The state of 3D printing technologies: A review

“…BJ method of 3DP prints layer-by-layer in order to fabricate the desired complex shape [16]. Keep in mind, this fast-printing technique is applicable for ceramics, metals, or etc [17].…”