Ceramics International 46(2020)6469-6476 Contents lists available at ScienceDirect CERAMICS INTERNATIONAL Ceramics International ELSEVIER journal homepage:.elsevier./locate/ceramint Extrusion-based 3D direct ink writing of NiZn-ferrite structures with viscoelastic ceramic suspension Taekyu An Kwang-Taek Hwang Jin-Ho Kim Jihoon Kima aDivision of Advanced Materials Engineering.Kangju National University Cheonan Chungchungnam-do 32588 South Korea Icheon Branch Korea Institante of Ceramic Engincering Technology (KICET) Icheon-si Gyeonggi-do 17303 South Korea ARTICLE INFO ABSTRACT Keywords Advances in additive manufacturing (AM) represented as the instant evolution of design files into fully func- Direct ink writing tional products provide customer-centric smart manufacturing solutions that are increasingly replacing tradi- Auger-extrusion tional manufacturing methods in various industries.However the advantages of AM often diminish when ap- NiZn-Ferrite plied to the production of ceramic ponents owing to the demanding nature of ceramic materials.Extrusion- Magnetic core based direct ink writing (DIW)is considered one of the few AM technologies applicable to ceramic materials. Ceramic 3D printing Precise control of the ceramic suspension is required in extrusion-based 3D DIW to create 3D structures for various industrial products.This study describes a fundamental relationship between the rheological properties of the ceramic suspensions and their 3D DIW printability.The...