High-temperature Si-Pr eutectic filler for brazing RBSiC composites: Wettability and bonding mechanisms

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-04-30 DOI:10.1016/j.jeurceramsoc.2025.117495

Xiaoqian Xue , Fugang Lu , Jia Yang , Yibo Fu , Qianrun Zhang , Tong Wu , Mengchun Fu , Panpan Lin , Ce Wang , Yongkang Dong , Tiesong Lin , Zhanguo Liu , Peng He

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引用次数: 0

Abstract

This study investigates the brazing of Si-Pr eutectic filler with Reaction-bonded Silicon Carbide (RBSiC), offering a comprehensive analysis of the wetting mechanism, microstructural evolution, mechanical properties, and fracture behavior of the joints. The results demonstrate that the Si-Pr eutectic filler achieves exceptional wettability with RBSiC, with no new phases formed at the interface, indicating stable and reliable interfacial interactions. Notably, the joint shear strength reaches 62.6 MPa at 1290 °C, with fracture occurring within the substrate, highlighting the superior mechanical properties of the brazed joints. The bonding mechanism involves Si adsorption and atomic bond formation facilitated by the diffusion of the filler and interface reconstruction. This work not only enhances our understanding of Si-Pr eutectic brazing alloys but also provides valuable insights for advancing composite material joining technologies, paving the way for more robust and efficient material connections in high-performance applications.

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钎焊RBSiC复合材料的高温Si-Pr共晶填料：润湿性和结合机制

研究了反应结合碳化硅（RBSiC）钎焊Si-Pr共晶钎料的润湿机理、微观组织演变、力学性能和接头断裂行为。结果表明，Si-Pr共晶填料与RBSiC具有良好的润湿性，界面处未形成新相，界面相互作用稳定可靠。值得注意的是，在1290℃时，接头抗剪强度达到62.6 MPa，接头断裂发生在基体内部，体现了钎焊接头优越的力学性能。键合机制包括硅的吸附和填充剂的扩散和界面重建促进原子键的形成。这项工作不仅增强了我们对Si-Pr共晶钎焊合金的理解，而且为推进复合材料连接技术提供了宝贵的见解，为高性能应用中更坚固、更高效的材料连接铺平了道路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.