Abstract Ti3SiC2 is one of the most studied MAX phase due to its unique combination of metallic and ceramic like properties. In this work, Powder Injection Moulding (PIM) is proposed as a new processing route to manufacture porous MAX phase Ti3SiC2, without the need of a space holder. The main goal of this work is to broaden MAX phase application fields through powder injection moulding technology. In depth characterization of all process stages has been done to control porosity in the final parts. Self-synthesized powders were mixed with a multicomponent binder for the production of sustainable feedstocks. The binder selection was carried out considering the design of a process with the reduction of the carbon footprint. In this sense, the binder consists of a combination of water soluble and low CO2 emission polymers. Feedstocks produced exhibit good properties for injection moulding. Critical solid loading (52 vol%) and a set of debinding debinding conditions has been determined for a two-step process without producing any defects in the samples. In addition, sintering parameters have been adjusted to successfully achieve porous MAX phase samples.

中文翻译：

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多孔 MAX 相 Ti3SiC2 的注射成型不使用空间支架

摘要 Ti3SiC2 是研究最多的 MAX 相之一，因为它兼有金属和陶瓷的独特性能。在这项工作中，粉末注射成型 (PIM) 被提出作为制造多孔 MAX 相 Ti3SiC2 的新工艺路线，无需空间支架。这项工作的主要目标是通过粉末注射成型技术拓宽 MAX 相的应用领域。已对所有工艺阶段进行了深入表征，以控制最终部件的孔隙率。自合成粉末与多组分粘合剂混合，用于生产可持续原料。粘合剂的选择是考虑到减少碳足迹的工艺设计。从这个意义上说，粘合剂由水溶性和低 CO2 排放聚合物的组合组成。生产的原料表现出良好的注塑性能。临界固含量 (52 vol%) 和一组脱脂脱脂条件已确定用于两步法，而不会在样品中产生任何缺陷。此外，已调整烧结参数以成功获得多孔 MAX 相样品。