PMMA light channels facilitate the additive manufacturing of complex-structured SiC reflector mirrors

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

Journal of The European Ceramic Society Pub Date : 2024-10-05 DOI:10.1016/j.jeurceramsoc.2024.116970

Suocheng Song , Xinfang Lin , Xianliang Ming , Durui Lu , Miao Sun , Bo Wang , Chonggao Bao , Bingheng Lu , Evan Ma

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引用次数: 0

Abstract

The rapid manufacturing of lightweight SiC reflector mirrors has always posed a formidable challenge. We have successfully solved the problem of SiC slurry’s difficulty in vat photopolymerization by using highly transparent organic particles to construct the light channels for the first time. Through the integration of digital light processing with reaction sintering, we manufactured complex-structured SiC/Si reflector mirrors. Utilizing the light channels constructed with PMMA, ultraviolet light can effectively penetrate SiC slurry, thereby significantly enhancing the curing depth. During subsequent reaction sintering, PMMA particles induce the formation of numerous spherical silicon through dissolution-precipitation mechanism, alleviating stress concentration in the matrix and enhancing the flexural strength of SiC/Si ceramics. The method achieves significantly higher curing depth for SiC slurry and greater flexural strength for ceramic compared to similar materials. Extending the success above further, we have demonstrated their potential as high-quality products for practical applications.

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PMMA 光通道有助于增材制造结构复杂的碳化硅反射镜

快速制造轻质 SiC 反射镜一直是一项艰巨的挑战。我们首次采用高透明有机颗粒构建光通道，成功解决了 SiC 浆料难以进行大桶光聚合的难题。通过将数字光处理与反应烧结相结合，我们制造出了结构复杂的碳化硅/硅反射镜。利用 PMMA 构建的光通道，紫外线可以有效穿透 SiC 泥浆，从而显著提高固化深度。在随后的反应烧结过程中，PMMA 颗粒通过溶解沉淀机制诱导形成大量球形硅，缓解了基体中的应力集中，提高了碳化硅/硅陶瓷的抗弯强度。与同类材料相比，该方法明显提高了碳化硅浆料的固化深度和陶瓷的抗弯强度。通过进一步推广上述成功经验，我们证明了它们作为高质量产品在实际应用中的潜力。

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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.