Thermal conduction in three-dimensional printed porous samples by high resolution infrared thermography

Codorníu, D. Muñoz; Moyano, Juan; Belmonte, Manuel; Osendi, María Isabel; Miranzo, P.

doi:10.1016/j.oceram.2020.100028

Cited by 12 publications

(7 citation statements)

References 27 publications

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“…On the other hand, data for 3D ceramic scaffolds manufactured by robocasting (full symbols in Figure 7d) were estimated from high resolution infrared thermography. [48] The electrical conductivity (σ e ) of composite scaffolds varied from 10 −6 S m −1 , for 6GNP and 12GNP, to 10 -4 S m −1 , for 18GNP, and, therefore, they are seven to nine orders of magnitude higher than the insulating γ-Al 2 O 3 matrix. These values are comparatively lower than those observed for other ceramic/graphene composite-based scaffolds [22] due to the exceptional porosity attained for the γ-Al 2 O 3 matrix.…”

Section: Resultsmentioning

confidence: 99%

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Enhanced Thermal and Mechanical Properties of 3D Printed Highly Porous Structures Based on γ‐Al₂O₃ by Adding Graphene Nanoplatelets

Moreno‐Sanabria

Ramírez

Osendi

et al. 2022

Adv Materials Technologies

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logically active materials and, recently, in other emerging applications like flame retardants for polymers, quasi-solid electrolytes, or antimicrobial agents. [3] In particular, macroporous alumina with hierarchical pore structure, high surface area, and narrow pore size distribution are highly desirable for heterogeneous catalysts, as for example, hydrotreating catalysts used for heavy oils. [6][7][8] In this way, the catalytic performance can be enhanced through the development of suitable macrostructures of the catalysts, which depends on the support, reducing the mass transfer resistance, improving the reaction efficiency and increasing the lifetime of the catalysts. In this context, the additive manufacturing (AM) techniques allow developing highly hierarchical 3D structures that include channels of controlled size and shape in the millimeter scale, while porosity at meso-and micro-scales within the struts can be tailored using different strategies. Direct ink writing (DIW), an AM technology, allows building customized porous scaffolds with precise intricate geometries of a wide range of materials by computer controlling the scaffold parameters and adjusting the ink properties. DIW presents some drawbacks as compared to other AM technologies employed for porous ceramic scaffolds, such as stereolithography, in particular, poor surface quality of the 3D printed structures, which can be greatly improved by using smaller nozzle diameters, and, especially, the limitation to directly produce scaffolds with spanning, overhanging, and floating features that would require employing sacrificial supporting materials. [9][10][11] Main concerns for the application of the 3D printed macroporous γ-Al 2 O 3 structures are its reduced mechanical resistance that may restrain their possible applications, and its limited heat transfer capability associated to the high porosity, which is particularly important in the case of 3D printed porous materials with applications in fields like catalysis, energy production and storage, and for thermal management as heat exchangers and heat sinks. [12][13][14][15][16][17][18][19][20] The incorporation of welldispersed graphene nanostructures, 2D carbon allotropes with outstanding electronic and physiochemical properties, [21] into the γ-Al 2 O 3 matrix can increase both the mechanical and the thermal performance of 3D printed γ-Al 2 O 3 structures [22] and One of the main challenges to widen the potential applications of 3D printed highly porous ceramic structures in catalysis, energy storage or thermal management resides in the improvement of both their mechanical resistance and thermal conductivity. To achieve these goals, highly hierarchical γ-alumina (γ-Al 2 O 3 ) scaffolds containing up to 18 vol% of graphene nanoplatelets (GNP), including channels of controlled size and shape in the millimeter scale and meso-porosity within the rods, are developed by robocasting from boehmite-based aqueous inks without other printing additives. These 3D structures exhibit high porosity (85%) and spe...

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Section: Resultsmentioning

confidence: 99%

“…On the other hand, data for 3D ceramic scaffolds manufactured by robocasting (full symbols in Figure 7d) were estimated from high resolution infrared thermography. [ 48 ]…”

Section: Resultsmentioning

confidence: 99%

Enhanced Thermal and Mechanical Properties of 3D Printed Highly Porous Structures Based on γ‐Al₂O₃ by Adding Graphene Nanoplatelets

Moreno‐Sanabria

Ramírez

Osendi

et al. 2022

Adv Materials Technologies

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“…researched the thermal conduction property of some porous material samples using infrared thermography. [ 2 ] The thermal properties of some materials used for the manufacture of parts by 3D printing have been highlighted by Kovalcik. [ 3 ] Research on the thermal conductivity of parts manufactured by 3D printing from PLA width milled carbon fiber reinforcement was undertaken by Blanco et al.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer in 3D‐Printed Polymer Cylindrical Parts

Hrițuc,

Mihalache,

Slătineanu

et al. 2023

Macromolecular Symposia

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Among the interesting thermal properties of polymeric materials is questionable their ability to transfer heat. The last decades have shown a significant expansion of manufacturing parts from polymeric materials using 3D printing processes. It is known that these processes allow changing the values of some input factors in the 3D printing workflow, which also leads to a change in the way the polymer material is arranged in part and, therefore, to a change in the capacity of the polymer material to transmit heat. To better understand how the variation of some input factors in the 3D printing process can change the way heat is transferred in test samples of polylactic acid (PLA) manufactured by 3D printing, a relatively simple device is designed whereby one of the surfaces of the test sample comes into contact with an aluminum alloy part heated using electrical resistance. Recording images using an infrared video camera helped to complete the information on how heat is transmitted through the test sample.

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“…Given the fairly widespread use of polystyrene as thermal insulation for buildings, researchers have been concerned with better characterizing the behavior of this material from the point of view of thermal conductivity [21,29,[32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Theoretical, Numerical and Experimental Assessment of Temperature Response in Polylactic Acid and Acrylonitrile Butadiene Styrene Used in Additive Manufacturing

et al. 2022

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A better understanding of heat transfer through materials used for 3D-printed parts could lead to an extension and an optimization of their use. A topic of interest could be analyzing temperature variation in these materials during cooling processes. Experimental research and equipment were designed to obtain additional information on the surface temperature decrease when the opposite wall surface is exposed to a freezing temperature. Experimental tests were performed on samples made of polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS). An experimental Taguchi L8 program was used, with seven independent variables at two levels of variation. The experimental data analysis with specialized software based on the least-squares method identified a mathematical model of first-degree polynomial type. The coefficients for each input factor involved provide information on the magnitude and trend of the considered output parameter when the input factors’ values change. It was found that the thickness of the 3D printing layer, the thickness of the test sample, and the 3D printing speed are the main factors that affect the temperature decrease rate.

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Thermal conduction in three-dimensional printed porous samples by high resolution infrared thermography

Cited by 12 publications

References 27 publications

Enhanced Thermal and Mechanical Properties of 3D Printed Highly Porous Structures Based on γ‐Al₂O₃ by Adding Graphene Nanoplatelets

Enhanced Thermal and Mechanical Properties of 3D Printed Highly Porous Structures Based on γ‐Al₂O₃ by Adding Graphene Nanoplatelets

Heat Transfer in 3D‐Printed Polymer Cylindrical Parts

Theoretical, Numerical and Experimental Assessment of Temperature Response in Polylactic Acid and Acrylonitrile Butadiene Styrene Used in Additive Manufacturing

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Thermal conduction in three-dimensional printed porous samples by high resolution infrared thermography

Cited by 12 publications

References 27 publications

Enhanced Thermal and Mechanical Properties of 3D Printed Highly Porous Structures Based on γ‐Al2O3 by Adding Graphene Nanoplatelets

Enhanced Thermal and Mechanical Properties of 3D Printed Highly Porous Structures Based on γ‐Al2O3 by Adding Graphene Nanoplatelets

Heat Transfer in 3D‐Printed Polymer Cylindrical Parts

Theoretical, Numerical and Experimental Assessment of Temperature Response in Polylactic Acid and Acrylonitrile Butadiene Styrene Used in Additive Manufacturing

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Product

Resources

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Enhanced Thermal and Mechanical Properties of 3D Printed Highly Porous Structures Based on γ‐Al₂O₃ by Adding Graphene Nanoplatelets

Enhanced Thermal and Mechanical Properties of 3D Printed Highly Porous Structures Based on γ‐Al₂O₃ by Adding Graphene Nanoplatelets