光固化制备极小曲面Al2O3/Al复合结构力学性能研究

doi:10.19936/j.cnki.2096-8000.20251228.005

复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (12): 37-41.DOI: 10.19936/j.cnki.2096-8000.20251228.005

光固化制备极小曲面Al₂O₃/Al复合结构力学性能研究

杨秀丽, 徐磊, 郭紫威^*

长春汽车职业技术大学汽车商贸管理学院,长春 130013

收稿日期:2024-09-20 出版日期:2026-02-06 发布日期:2026-02-06
通讯作者: 郭紫威(1989—),男,学士,讲师,研究方向为增材制造技术,543350080@qq.com。
作者简介:杨秀丽(1980—),女,硕士,讲师,研究方向为车辆工程。
基金资助:
吉林省教育厅科学研究项目科研课题(JJKH20241764KJ)

Study on mechanical properties of minimal surface Al₂O₃/Al composite structures prepared by photocuring

YANG Xiuli, XU Lei, GUO Ziwei^*

Automobile Business Management College, Changchun Technical University of Automobile, Changchun 130013, China

Received:2024-09-20 Online:2026-02-06 Published:2026-02-06

摘要/Abstract

摘要： 本文采用光固化成型(Stereo Lithography Apparatus,SLA)技术制备了体积分数为30%的极小曲面Gyroid结构陶瓷骨架,通过金属浸渗的方式制备了互穿Al₂O₃/Al复合材料。将Gyroid曲面结构Al₂O₃/Al互穿复合材料与蜂窝结构Al₂O₃/Al互穿复合材料的抗压性能进行了比较,并通过扫描电镜观察复合材料受压破坏断裂截面的形貌,分析了互穿相复合材料受压破坏的机制。试验结果表明,两种结构复合材料受压破坏均主要发生在陶瓷骨架以及陶瓷/金属界面结合的位置,整体呈45°剪切角破坏。Gyroid曲面结构复合材料因其平滑且规则的拓扑结构使得局部应力集中较低,与蜂窝结构复合材料相比具有更高的强度和延展性。Gyroid曲面结构复合材料的极限抗压强度为236 MPa,是蜂窝结构极限抗压强度的3.4倍。

关键词: 光固化3D打印, 极小曲面结构, 复合材料, 压缩性能

Abstract: In this paper, the minimal surface Gyroid structure ceramic skeleton with volume fraction of 30% was prepared by stereo lithography apparatus (SLA) additive manufacturing, and the interpenetrating Al₂O₃/Al composite was prepared by metal infiltration. The compressive properties of the Gyroid surface Al₂O₃/Al interpenetrating composites were compared with those of the honeycomb Al₂O₃/Al interpenetrating composites. The fracture cross sections of the composites were observed by scanning electron microscopy (SEM), and the compressive failure mechanism of the composites was analyzed. The experimental results show that the compressive failure of the two structural composites mainly occurs at the joint position of the ceramic skeleton and the ceramic-metal interface, and the overall shear angle is 45°. The Gyroid curved structural composite has higher strength and ductility than the honeycomb structural composite due to its smooth and regular topological structure resulting in lower local stress concentration. The ultimate compressive strength of the Gyroid curved structural composite is 236 MPa, which is 3.4 times that of the honeycomb structure.

Key words: light curing 3D printing, minimal curved surface structure, composite material, compressibility

中图分类号:

TB332

杨秀丽, 徐磊, 郭紫威. 光固化制备极小曲面Al₂O₃/Al复合结构力学性能研究[J]. 复合材料科学与工程, 2025, 0(12): 37-41.

YANG Xiuli, XU Lei, GUO Ziwei. Study on mechanical properties of minimal surface Al₂O₃/Al composite structures prepared by photocuring[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(12): 37-41.

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光固化制备极小曲面Al₂O₃/Al复合结构力学性能研究

Study on mechanical properties of minimal surface Al₂O₃/Al composite structures prepared by photocuring

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