研究目的
Investigating the use of femtosecond fiber lasers in laser additive manufacturing (LAM) to create multi-material multi-layer structures for solid oxide fuel cells (SOFCs) without the need for binders and post-treatment.
研究成果
Demonstrated the feasibility of using LAM to create functional multi-material multi-layer SOFCs without binders and post-treatment. Identified areas for improvement in uniformity and interface strength for better performance.
研究不足
High resistance in the SOFC cells possibly due to thickness control of the YSZ electrolyte, non-uniformity, and issues with Au grid attachment during testing.
1：Experimental Design and Method Selection:
Utilized femtosecond fiber lasers for LAM to create multi-material layers for SOFCs.
2：Sample Selection and Data Sources:
Used yttria-stabilized zirconia (YSZ), Ni–YSZ, and lanthanum strontium manganite (LSM) as materials.
3：List of Experimental Equipment and Materials:
High power mode-locked Yb-doped fiber laser, acoustic–optical modulator (AOM), galvanic-mirror enabled scanner.
4：Experimental Procedures and Operational Workflow:
Systematically evaluated parameters including laser power, scan speed, scan pattern, and hatching space to optimize density and porosity.
5：Data Analysis Methods:
Analyzed the microstructure and mechanical properties of the fabricated parts.
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