研究目的
To develop a coherent workflow for the fabrication of engineered objects that are self-similar to biological objects, specifically diatom frustules, using nano-XCT and 3D printing techniques.
研究成果
The study successfully demonstrated a workflow for creating self-similar, bio-inspired structures from diatom frustules using nano-XCT and 3D printing. This approach has potential applications in materials science, mechanical engineering, and biology for visualizing and replicating complex biological structures.
研究不足
The size of the biological samples and the resolution limitations of 3D printing technology may affect the accuracy and detail of the engineered objects. Future work could explore optimizing the mechanical properties of these structures.
1：Experimental Design and Method Selection
The study utilized nano-XCT for nondestructive visualization of diatom frustule structure, followed by CAD model generation and 3D printing using SLM with titanium powder.
2：Sample Selection and Data Sources
Didymosphenia geminata samples were collected, cleaned, and prepared for nano-XCT imaging to obtain detailed 3D morphological information.
3：List of Experimental Equipment and Materials
Nano-XCT tool (Xradia 100), Realizer SLM50 desktop 3D printer, CP Ti (Grade 1) powder, hydrofluoric acid, nitric acid, ultrasonic cleaner.
4：Experimental Procedures and Operational Workflow
The process involved nano-XCT imaging, CAD model generation, 3D printing with SLM, post-processing including chemical polishing, and verification using micro-XCT.
5：Data Analysis Methods
Reconstruction of 2D X-ray projections into 3D volume, segmentation, and comparison of natural and engineered objects using XCT.
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