Accuracy controlling and mechanical behaviors of precursor-derived SiOC ceramic microlattices by projection micro stereolithography (PμSL) 3D printing

IF 18.6 1区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of Advanced Ceramics Pub Date : 2023-10-01 DOI:10.26599/jac.2023.9220818
Ruyue Su, Jingyi Chen, Xueqin Zhang, Xiong Gao, Wenqing Wang, Ying Li, Rujie He
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Abstract

Precursor-derived SiOC ceramic (PDC-SiOC) microlattices exhibit excellent oxidation resistance, high-temperature stability, as well as superior mechanical properties. However, the printing accuracy of PDC-SiOC microlattices by 3D printing is still limited, and the mechanical properties of PDC-SiOC microlattices have not been studied systematically. Here, PDC-SiOC octet microlattices were fabricated by projection micro stereolithography (PμSL) 3D printing, and photoabsorber (Sudan III) 's effect on accuracy was systematically analyzed. The results showed that the addition of Sudan III improved the printing accuracy significantly. Then the ceramization process of the green body was analyzed in detail. The order of the green body decreased and most of their chemical bonds were broken during pyrolysis. After that, PDC-SiOC microlattices with different truss diameters in the 52-220 μm range were fabricated and their mechanical properties were investigated. The PDC-SiOC microlattices with 52 μm truss diameter exhibited a higher compression strength (31 MPa) than those with bigger truss diameters. The size effect among PDC-SiOC microlattices was analyzed. Our work provides a deeper insight into the manufacturing of PDC-SiOC micro-scaled architectures by 3D printing and paves a path to the research of size effect in ceramic structures.
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投影微立体光刻(PμSL) 3D打印前驱体衍生SiOC陶瓷微晶格的精度控制和力学行为
前驱体衍生SiOC陶瓷(PDC-SiOC)微晶格具有优异的抗氧化性、高温稳定性和优异的机械性能。然而,利用3D打印技术打印PDC-SiOC微晶格的精度仍然有限,并且尚未对PDC-SiOC微晶格的力学性能进行系统的研究。本文采用投影微立体光刻(PμSL) 3D打印和苏丹光吸收剂(Sudan III)制备了PDC-SiOC八元体微晶格。系统分析了其对精度的影响。结果表明,苏丹红三的加入显著提高了印刷精度。然后对青体的陶化工艺进行了详细分析。在热解过程中,绿体的有序度降低,大部分化学键断裂。然后制备了52 ~ 220 μm范围内不同桁架直径的PDC-SiOC微晶格,并对其力学性能进行了研究。桁架直径为52 μm的PDC-SiOC微晶格的抗压强度(31 MPa)高于桁架直径较大的微晶格。分析了PDC-SiOC微晶格之间的尺寸效应。我们的工作为利用3D打印技术制造PDC-SiOC微尺度结构提供了更深入的见解,并为陶瓷结构的尺寸效应研究铺平了道路。
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来源期刊
Journal of Advanced Ceramics
Journal of Advanced Ceramics MATERIALS SCIENCE, CERAMICS-
CiteScore
21.00
自引率
10.70%
发文量
290
审稿时长
14 days
期刊介绍: Journal of Advanced Ceramics is a single-blind peer-reviewed, open access international journal published on behalf of the State Key Laboratory of New Ceramics and Fine Processing (Tsinghua University, China) and the Advanced Ceramics Division of the Chinese Ceramic Society. Journal of Advanced Ceramics provides a forum for publishing original research papers, rapid communications, and commissioned reviews relating to advanced ceramic materials in the forms of particulates, dense or porous bodies, thin/thick films or coatings and laminated, graded and composite structures.
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