Sklyarova Anastasia, Presmanes Lionel, Baylac Vincent, Chevallier Geoffroy, Estournès Claude, Duployer Benjamin, Noudem Jacques, Bernstein Pierre, Tailhades Philippe, Thimont Yohann
Centre Inter-universitaire de Recherche et d'Ingénierie des Matériaux, CNRS, INPT, UPS, Université de Toulouse, 118 Route de Narbonne, 31062 Toulouse, Cedex 9, France.
ENSICAEN, 6, Boulevard Maréchal Juin-CS 45053, 14050 Caen, Cedex 4, France.
Materials (Basel). 2025 May 19;18(10):2367. doi: 10.3390/ma18102367.
This article demonstrates the concept proof to manufacture parts of MgB by Laser Powder Bed Fusion (L-PBF) coupled to Spark Plasma Sintering (SPS) by an optimization of the L-PBF and SPS conditions to limit the phase degradation and complete the sintering. Optimal L-PBF parameters were identified in order to obtain the material preforms with a minimal degradation of the MgB phase, and then these preforms were sintered by SPS using an inert powder as matrix with a purpose to receive a mechanically more reliable product. Sintered samples show superconductivity state inherent for the raw material and demonstrate superconducting transition around 38 K according to the magnetic moment measurements.
本文通过优化激光粉末床熔融（L-PBF）和放电等离子烧结（SPS）条件以限制相降解并完成烧结，展示了通过L-PBF与SPS相结合制造MgB部件的概念验证。确定了最佳L-PBF参数，以获得MgB相降解最小的材料预制件，然后使用惰性粉末作为基体通过SPS对这些预制件进行烧结，目的是获得机械性能更可靠的产品。烧结样品显示出原材料固有的超导状态，根据磁矩测量，其超导转变温度约为38K。
