Fabrication of 3D Micro-Architected/Nano-Architected Materials

Valdevit, Lorenzo; Bauer, J.

doi:10.1016/b978-0-323-35321-2.00018-2

Cited by 10 publications

(3 citation statements)

References 94 publications

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Section: Introductionmentioning

confidence: 99%

“…Specifically, they make it possible to decouple features conventionally associated with monolithic materials that compete with one another, such as decoupling thermal conductivity and the Seebeck coefficient. [69] Given the architected materials and the digital design used for AM in micro-TE technology, the name "μ -TEG" is no longer suitable and must be replaced by the name "microarchitected TEG". This review presents a comprehensive examination of the existing research on μ-TEGs as well as numerous developments in improving μ-TEGs' performance from the viewpoints of design, geometry optimization, and μ-TEG manufacturing technology.…”

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confidence: 99%

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Design and Fabrication of Microarchitected Thermoelectric Generators: Prospects and Challenges

Asadikouhanjani,

Zolfagharian,

Bodaghi

2024

Adv Eng Mater

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Solid state devices called thermoelectric generators (TEGs) can convert waste heat from production into electrical power. For emerging devices like thermally integrated energy‐autonomous devices, medicinal equipment, and Internet of things, µ‐TEGs are essential because they can produce power even from minor temperature gradients. An review of the history and state‐of‐the‐art of µ‐TEGs is provided in this article. In addition, it concentrates on highly effective approaches for achieving high‐performance miniature vertical thermoelectric (TE) devices. Design and optimizing methodologies for vertical µ‐TEGs are also investigated since their output power, efficiency and integrity are critical to the architecture. Improving electrical and mechanical performance may be achieved via optimization methods, including multi‐objective and finite‐dimensional optimization in three dimensions (3D). Additionally, the idea and latest advancements of employing the 3D micro‐additive manufacturing (micro‐AM) technique for producing µ‐TEGs are discussed, along with their advantages and disadvantages. The concept of “micro architected TEGs” as opposed to “µ ‐TEGs” is provided by the new paradigm of digital additive manufacturing and architected material concept, which also broadens the scope of material adaptability and innovative structural design. The difficulties experienced are summed up when increasing the output power of µ‐TEG and the prediction of future trends is the final step.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Design and Fabrication of Microarchitected Thermoelectric Generators: Prospects and Challenges

Asadikouhanjani,

Zolfagharian,

Bodaghi

2024

Adv Eng Mater

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“…In the last two decades, two-photon polymerization (TPP) has been established as a versatile tool for the microfabrication of three-dimensional structures [1]. Applications include the fabrication of photonic crystals [2], directly printed lens systems [3], micro fluidic devices [3], biological scaffolds [4] and templates for metamaterials [5]. In general, TPP relies on similar principles as known for common optical lithography, namely, exposure of an often-negative photo resist and a wet development process followed by the drying of the structures.…”

Section: Introductionmentioning

confidence: 99%

A Machine Learning Approach to Detect and Classify 3d Two-Photon Polymerization Microstructures Using Optical Microscopy Images

Goytom¹,

Gu²

2018

Computer Science &Amp; Information Technology (CS &Amp; IT)

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For 3D microstructures fabricated by two-photon polymerization, a practical approach of machine learning for detection and classification in their optical microscopic images is state and demonstrated in this paper. It is based on Faster R-CNN, Multi-label classification (MLC) and Residual learning framework Algorithms for reliable, automated detection and accurate labeling of Two Photo Polymerization (TPP) microstructures. From finding and detecting the microstructures from a different location in the microscope slide, matching different shapes of the microstructures classify them among their categories is fully automated. The results are compared with manual examination and SEM images of the microstructures for the accuracy test. Some modifications of ordinary optical Microscope so as to make it automated and by applying Deep learning and Image processing algorithms we can successfully detect, label and classify 3D microstructures, designing the neural network model for each phase and by training them using the datasets we have made, the dataset is a set of different images from different angles and their annotation we can achieve high accuracy. The accurate microstructure detection technique in the combination of image processing and computer vision help to simulate the values of each pixel and classify the Microstructures.

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Design of Architectured Materials Based on Mechanically Driven Structural and Compositional Patterning

2019

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Providing materials with an inner architecture that improves their mechanical and physical properties is a potent approach to materials design. Herein, the possibilities of such architecturing by means of severe plastic deformation (SPD) are discussed. Compositional and structural patterns caused by SPD processing can potentially improve the mechanical characteristics and physical properties of exemplary materials considered. The message to convey is that SPD opens up new opportunities with regard to producing materials with a multiscale structure. This can be achieved by virtue of the following effects associated with SPD: extreme grain refinement, whose level is governed by strain distribution; controlled self‐organization of the structure of multiphase materials; and anomalously fast mass transfer, which leads to the formation of new phases and various “reaction–diffusion” patterns. Furthermore, combining SPD with conventional metal forming, differential heat treatment, or 3D printing offers additional possibilities, which are considered in this article.

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Fabrication of 3D Micro-Architected/Nano-Architected Materials

Cited by 10 publications

References 94 publications

Design and Fabrication of Microarchitected Thermoelectric Generators: Prospects and Challenges

Design and Fabrication of Microarchitected Thermoelectric Generators: Prospects and Challenges

A Machine Learning Approach to Detect and Classify 3d Two-Photon Polymerization Microstructures Using Optical Microscopy Images

Design of Architectured Materials Based on Mechanically Driven Structural and Compositional Patterning

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