A. Sohrabi-Kashani , H. Yazdani Sarvestani , T. Lacelle , Y. Martinez-Rubi , S. Zou , A. Robitaille , H. Lavoie , M.B. Jakubinek , B. Ashrafi
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引用次数: 0
Abstract
This study introduces a novel approach for fabricating ceramic structures using a silicon oxycarbide (SiOC) preceramic resin enhanced with boron nitride nanotubes (BNNTs) through digital light processing (DLP). These ceramics feature intricate shapes and high-resolution triply periodic minimal surface (TPMS) architectures with low relative density structures but dense (low-porosity) ceramic features. Incorporating BNNTs at low concentrations (0.2, 0.4, and 0.8 wt%) into a commercially available SiOC precursor, which was then formulated for DLP printing, resulted in a significant reduction in porosity and improved mechanical performance in the polymer-derived SiOC. This combined effect preserved original designs with higher accuracy and significantly enhanced energy absorption and compressive strength of the 3D-printed ceramics compared to baseline SiOC lattices, by factors of 4.4 and 6 times, respectively. Characterization revealed modest changes in storage and loss moduli with BNNT addition, while the BNNT-modified formulation exhibited excellent printability, and ceramic density measurements confirmed a slight increase with BNNT incorporation. This innovative approach, paired with the versatility of additive digital manufacturing, enables the creation of customizable, bio-inspired ceramic structures with tunable properties for aerospace, energy, and biomedical applications.
期刊介绍:
Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development.
The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.