Abstract
Laser additive manufacturing (LAM) of a multi-material multi-layer structure was investigated using femtosecond fiber lasers. A thin layer of yttria-stabilized zirconia (YSZ) and a Ni–YSZ layer were additively manufactured to form the electrolyte and anode support of a solid oxide fuel cell (SOFC). A lanthanum strontium manganite (LSM) layer was then added to form a basic three layer cell. This single step process eliminates the need for binders and post treatment. Parameters including laser power, scan speed, scan pattern, and hatching space were systematically evaluated to obtain optimal density and porosity. This is the first report to build a complete and functional fuel cell by using the LAM approach.
Highlights
Laser additive manufacturing (LAM) [1,2,3,4,5,6] uses powder bed fusion (PBF), feedstock, or powder injection systems to build three dimensional (3D) parts
The Ni–yttria-stabilized zirconia (YSZ) supporting layer was first made with the LAM
The results show that high density had a better surface shows the microscopic photos of the melted layers under various scan speed photos of the melted Ni–YSZ layers under various scan speed conditions at a fixed power of 130
Summary
Laser additive manufacturing (LAM) [1,2,3,4,5,6] uses powder bed fusion (PBF), feedstock, or powder injection systems to build three dimensional (3D) parts. The PBF AM system is the best approach compared with other AM approaches because it can achieve excellent density (>99%) and mechanical strength. Post heat treatment is usually required for binder-based AM to achieve reasonable density and mechanical strength. This adds significant cost, time, and process complexity, especially for making large sized parts. LAM could be a promising approach to make SOFCs of complex structures and shapes without the need for binders
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
