Binder-jetting of TiCN-based cermets

ABSTRACT

Additive Manufacturing is experiencing an upswing in many sectors of industry for a broad variety of materials. Processes are mainly developed for polymers and metals. For ceramics, hardmetals and especially cermets there are only a few additive processes suitable. The powder-based technique Binder-Jetting is one of these suitable processes with high productivity and relatively low green density. Within this study, TiCN-based cermets are printed by Binder-Jetting for the first time. The complexity of influences of the morphology and composition of cermet powders are discussed in regard to bulk density and material properties of printed and sintered parts. Studied TiCN-based cermet compositions represent different Ni and Mo₂C contents. Main points of this investigation are further the adjustment of ratio of the raw materials for good sintering behaviour and their influence on the microstructures and as a function of varied sintering temperatures.

KEYWORDS:

• Cermet
• TiCN
• additive manufacturing
• binder-jetting
• powder

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Christian Berger

Christian Berger, scientists at the Fraunhofer Institute for Ceramic Technologies and Systems IKTS in the working field of powder based additive manufacturing and specialy for hardmetals and cermets.

Johannes Pötschke

Johannes Pötschke, Group leader of the group:,Hardmetals and Cermets.

Manfred Fries

Manfred Fries, Group leader: Powder Technology.

Tassilo Moritz

Tassilo Moritz, head of department: Processes and, components.

Alexander Michaelis

Alexander Michaelis, Institute Director of the Fraunhofer Institute for Ceramic Technologies and Systems IKTS.