Thermal design, optimization and additive manufacturing of ceramic regular structures to maximize the radiative heat transfer

Pelanconi, Marco; Barbato, Maurizio; Zavattoni, Simone; Vignoles, Gérard L.; Ortona, Alberto

doi:10.1016/j.matdes.2018.107539

Cited by 83 publications

(53 citation statements)

References 21 publications

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“…TPMS‐based substrates were tested using the High‐Temperature Pressure Drop (HTPD) apparatus developed at SUPSI . This apparatus evaluates the pressure drop between the inlet and the outlet of a ceramic tube with porous inserts.…”

Section: Methodsmentioning

confidence: 99%

“…TPMS-based substrates were tested using the High-Temperature Pressure Drop (HTPD) apparatus developed at SUPSI. 45 This apparatus evaluates the pressure drop between the inlet and the outlet of a ceramic tube with porous inserts. Experiments were conducted under an ambient temperature of 298 K were the inlet temperatures were ranging between 293 and 298 and an atmospheric pressure of 98 kPa.…”

Section: Pressure Drop Testsmentioning

confidence: 99%

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Additive manufacturing of architected catalytic ceramic substrates based on triply periodic minimal surfaces

et al. 2019

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The exhibited geometry of catalytic substrates can have a significant influence on the chemical activity and efficiency. Controlling their geometry can be challenging using the traditional techniques. In this work, we propose new and novel catalytic substrates with architected and controllable topologies based on the minimal surfaces framework. A novel design approach and an additive manufacturing (AM) technique were proposed to manufacture the catalytic substrates using ceramic materials. After 3D printing, their mechanical and flow properties were investigated experimentally. An elastic‐plastic‐damage coupled model was employed to investigate the underlying deformation mechanism of the investigated substrates. Results showed that the CLP substrate exhibited the highest mechanical properties as well as the least pressure drop among the tested substrates. Also, numerical simulations showed that the strut‐based substrates exhibit stress localization which leads to faster failure, while stress is distributed more homogeneously in the sheet‐based substrates. While the model showed to have a good agreement in the experimental and simulation stress‐strain responses, the damage mechanism was not fully captured by the numerical simulations. This was attributed mainly to the process‐induced defects in the form of microcracks and microvoids that can alter the nature of deformation and damage.

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Section: Methodsmentioning

confidence: 99%

Section: Pressure Drop Testsmentioning

confidence: 99%

Additive manufacturing of architected catalytic ceramic substrates based on triply periodic minimal surfaces

et al. 2019

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“…This is accompanied by the progress in advanced manufacturing technologies, such as additive production (3D printing) and laser cutting [ 24 ]. In the literature [ 25 , 26 , 27 , 28 ], authors have used additive manufacturing to create layered structures with architectural cores. They showed, among other things, that the properties of cellular materials are not only determined by solid components, but also by the spatial configuration of voids and solids, i.e., the cellular architecture.…”

Section: Introductionmentioning

confidence: 99%

The Thermal Conductivity of 3D Printed Plastic Insulation Materials—The Effect of Optimizing the Regular Structure of Closures

Grabowska

Kasperski

2020

Materials

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In the interest of environmental protection, attention should be paid to improving energy efficiency, through the use of appropriate insulations. They can be used in the construction industry, for plastic window frames, and the thermal insulation of buildings. It is also possible to use these materials in the electronics industry, for hermetic casings of devices, in the aviation industry, as well as in the food industry, as collective packaging for frozen food. The technology of using additive 3D printing to create prototype insulating materials made of plastic is proposed in this article. Multi-layer materials, with quadrangle, hexagonal, and triangle closures were designed and printed. A mathematical model was developed, and then experimentally verified. Quadrangle and hexagonal structures were shown to be useful, and triangle structures to be of little use. The optimal size of closure was determined to be 10 mm, with no convection, and 6 mm, with possible convection. The lowest thermal conductivity of the insulation was 0.0591 W/(m·K) for 10 mm single-layer quadrangle and hexagonal closures with an insulation density of 180 kg/m3.

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“…These structures could be designed but hardly manufactured until the advent of additive manufacturing (AM). The great benefit of AM is that it allows the design of components by their function [25,26] and no longer by manufacturability, with an obvious advantage in improving components' performances [27,28]. AM opens new opportunities for bio-inspired structural components [29][30][31] because living things are built by the most sophisticated of additive manufacturing methods.…”

Section: Introductionmentioning

confidence: 99%

Nature-Inspired, Ultra-Lightweight Structures with Gyroid Cores Produced by Additive Manufacturing and Reinforced by Unidirectional Carbon Fiber Ribs

Pelanconi

Ortona

2019

Materials

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This article reports on a nature-inspired, ultra-lightweight structure designed to optimize rigidity and density under bending loads. The structure’s main features were conceived by observing the scales of the butterflies’ wings. They are made of a triply periodic minimal surface geometry called gyroid and further reinforced on their outer regions with a series of ribs. In this work, the ribs were substituted with carbon fiber-reinforced bars that were connected to the main structure with an innovative concept. Stereolithography was used to print a plastic component in one piece that comprised the core and the connection system. Bending tests were performed on the structures along with a Finite Element Method optimization campaign to achieve the optimum performance in terms of stiffness and density. Results show that these architectures are among the most effective mechanical solutions in respect to their weight because of their particular arrangement of material in space.

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Thermal design, optimization and additive manufacturing of ceramic regular structures to maximize the radiative heat transfer

Cited by 83 publications

References 21 publications

Additive manufacturing of architected catalytic ceramic substrates based on triply periodic minimal surfaces

Additive manufacturing of architected catalytic ceramic substrates based on triply periodic minimal surfaces

The Thermal Conductivity of 3D Printed Plastic Insulation Materials—The Effect of Optimizing the Regular Structure of Closures

Nature-Inspired, Ultra-Lightweight Structures with Gyroid Cores Produced by Additive Manufacturing and Reinforced by Unidirectional Carbon Fiber Ribs

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