3D printing of fibre-reinforced ceramic composites with hierarchical structure

IF 1.3 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Advances in Applied Ceramics Pub Date : 2021-12-28 DOI:10.1080/17436753.2021.2014276

Chin Sheng Chua, Sean Yong Ow, S. L. Liew, Junyi Liu, C. B. Soh, L. Shen, Shijie Wang

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引用次数: 1

Abstract

ABSTRACT This paper reports the 3D printing of fibre-reinforced ceramic composite with hierarchical structures. Through printing precursor formulation, short SiC fibres have been successfully incorporated into silicate materials and gradient porous hierarchical structure has been achieved for the printed parts. The mechanical testing shows a 27% improvement in impact strength, 22% improvement in flexural modulus, and 7.5% in flexural strength compared with parts without fibre reinforcement. High-resolution tomography analysis using x-ray microscopy shows that the inner structure has a porosity of 27%, while the outer layer shows a dense structure with little pores formation. This 3D printed ceramic composite with fibre-reinforcement shows high similarity to the gradient porous structures of human bone and tooth. The results indicate that 3D printing of nano/microfibre reinforced ceramic composite with hierarchical structure is a promising method to enhance the fracture toughness of ceramics and allow accurate patient-specific customisation for their implants.

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具有分层结构的纤维增强陶瓷复合材料的3D打印

本文报道了具有分层结构的纤维增强陶瓷复合材料的3D打印。通过打印前驱体配方，成功地将短碳化硅纤维掺入硅酸盐材料中，实现了打印件的梯度多孔分层结构。力学试验表明，与未加纤维增强的零件相比，冲击强度提高27%，弯曲模量提高22%，弯曲强度提高7.5%。利用x射线显微镜进行高分辨率层析分析，发现其内部结构孔隙率为27%，而外层结构致密，孔隙形成较少。这种3D打印的纤维增强陶瓷复合材料与人类骨骼和牙齿的梯度多孔结构高度相似。结果表明，3D打印具有分层结构的纳米/微纤维增强陶瓷复合材料是一种很有前途的方法，可以提高陶瓷的断裂韧性，并允许患者对其植入物进行精确的定制。

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来源期刊

Advances in Applied Ceramics 工程技术-材料科学：硅酸盐

CiteScore

4.40

自引率

4.50%

发文量

审稿时长

5.2 months

期刊介绍： Advances in Applied Ceramics: Structural, Functional and Bioceramics provides international coverage of high-quality research on functional ceramics, engineering ceramics and bioceramics.