TPMS SiC structures produced by chemical vapour infiltration of SiC preforms shaped by powder bed fusion and binder jetting: a preliminary study on the early stages of the CVI process

IF 6.2 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-09-09 DOI:10.1016/j.jeurceramsoc.2025.117809

Marco Pelanconi , Samuele Bottacin , Giovanni Bianchi , Davide Viganò , Vasileios Papageorgiou , Hristo Strakov , Alberto Ortona

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引用次数: 0

Abstract

This study combines two additive manufacturing (AM) techniques, named binder jetting (BJ) and powder bed fusion (PBF), with chemical vapor infiltration (CVI) to produce SiC architectures with enhanced mechanical and oxidation resistance properties. Using TPMS-based gyroid geometries, complex preforms were fabricated via AM and then densified through CVI. These preliminary results demonstrated that this approach could successfully produce intricate porous preforms, with structures achieving high relative density maintaining geometric stability during processing. The 10 h CVI process significantly improved the mechanical properties, with BJ-derived samples reaching an increase in compressive strength after two infiltration cycles (∼14 MPa). Oxidation tests at 1500°C confirmed excellent resistance, with the formation of protective SiO₂ layers contributing to material durability. These findings highlight the potential of combining AM and CVI for producing high-performance SiC ceramics. This approach offers a pathway to developing advanced materials tailored for demanding applications in energy, aerospace, and high-temperature industrial systems.

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粉末床熔合和粘结剂喷射成形的碳化硅预制体通过化学蒸汽渗透产生TPMS碳化硅结构：CVI工艺早期阶段的初步研究

本研究将粘结剂喷射（BJ）和粉末床熔融（PBF）两种增材制造（AM）技术与化学蒸汽渗透（CVI）相结合，以生产具有增强机械和抗氧化性能的SiC结构。利用基于tpms的陀螺几何形状，通过增材制造复杂的预制体，然后通过CVI进行致密化。这些初步结果表明，这种方法可以成功地生产复杂的多孔预制体，其结构在加工过程中获得较高的相对密度，并保持几何稳定性。10 h CVI工艺显著改善了力学性能，bj衍生的样品在两次渗透循环（~ 14 MPa）后抗压强度增加。在1500°C下的氧化试验证实了优异的耐氧化性，形成了保护性的SiO2层，有助于材料的耐用性。这些发现突出了AM和CVI结合生产高性能SiC陶瓷的潜力。这种方法为开发适合能源、航空航天和高温工业系统中苛刻应用的先进材料提供了一条途径。

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来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.