Ceramic Foams with Controlled Geometries Through 3D‐Printed Sacrificial Templates

Persembe, E.; Parra‐Cabrera, Cesar; Ameloot, Rob

doi:10.1002/adem.202300076

Cited by 3 publications

(2 citation statements)

References 91 publications

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“…At present, several methods exist for the fabrication of porous ceramics, including sintering [ 15 , 16 , 18 , 19 , 20 , 21 ], sacrificial templating [ 22 , 23 , 24 , 25 ], sol-gel [ 26 , 27 , 28 , 29 ], and polymer precursor conversion (PDC) [ 30 , 31 ] techniques. The sintering technique primarily employs ceramic particles and pore-forming agents as raw materials, producing porous carbide ceramics through high-temperature sintering around 2000 °C, necessitating a sophisticated experimental apparatus and consequently, a high cost.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Mechanical Property and Thermal Conductivity of Porous TiCO Ceramic Fabricated by In Situ Carbothermal Reduction of Phenolic Resin and Titania

Cao,

Wang,

et al. 2024

Nanomaterials

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The porous TiCO ceramic was synthesized through a one-step sintering method, utilizing phenolic resin, TiO2 powder, and KCl foaming agent as raw materials. Ni(NO3)2·6H2O was incorporated as a catalyst to facilitate the carbothermal reaction between the pyrolytic carbon and TiO2 powder. The influence of Ni(NO3)2·6H2O catalyst content (0, 5, 10 wt.% of the TiO2 powder) on the microstructure, compressive strength, and thermal conductivity of the resultant porous TiCO ceramic was examined. X-ray diffraction and X-ray photoelectron spectroscopy results confirmed the formation of TiC and TiO in all samples, with an increase in the peak of TiC and a decrease in that of TiO as the Ni(NO3)2·6H2O content increased from 0% to 10%. Scanning electron microscopy results demonstrated a morphological change in the pore wall, transforming from a honeycomb-like porous structure composed of well-dispersed carbon and TiC-TiO particles to rod-shaped TiC whiskers, interconnected with each other as the catalyst content increased from 0% to 10%. Mercury intrusion porosimetry results proved a dual modal pore-size distribution of the samples, comprising nano-scale pores and micro-scale pores. The micro-scale pore size of the samples minorly changed, while the nano-scale pore size escalated from 52 nm to 138 nm as the catalyst content increased from 0 to 10%. The morphology of the pore wall and nano-scale pore size primarily influenced the compressive strength and thermal conductivity of the samples by affecting the load-bearing capability and solid heat-transfer conduction path, respectively.

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Section: Introductionmentioning

confidence: 99%

Microstructure, Mechanical Property and Thermal Conductivity of Porous TiCO Ceramic Fabricated by In Situ Carbothermal Reduction of Phenolic Resin and Titania

Cao,

Wang,

et al. 2024

Nanomaterials

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“…[ 16 ] Recently, rise in research in 3D printing community accelerated the development of multimaterial 3D printing called direct ink writing (DIW)‐based 3D printing. [ 17–21 ] In this technique, we can fabricate material directly or with the help of a binder, and then posttreatment is provided to achieve the final product. The resolution of the 3D‐printed structures depends on 3D printer precision, viscosity, and percentage of solid loading.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Mechanical Properties of Direct Ink Writing (3D Printed) Hexagonal Boron Nitride Reinforced Porous Boehmite Structures

Ambekar,

Joseph,

Ganji

et al. 2024

Adv Eng Mater

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3D printing techniques offer a unique opportunity to build unconventional shapes to enhance operational performance. Boehmite structures that are 3D printed using direct ink writing (DIW) technique are employed as catalytic carriers; however, their inadequate fracture resistance poses a drawback. Therefore, this study aims to improve the mechanical properties of 3D‐printed boehmite structures by reinforcing hexagonal boron nitride (hBN) nanosheets. Herein, the DIW of boehmite structures is reported where porosity and surface area relevant for industrial applications have been achieved. Since porosity enhancement is a trade‐off with mechanical strength, reinforcement of 3D printing boehmite ink is done with hBN in an effort to increase its fracture strength without compromising porosity. There are varied hBN concentrations in the composite to study its impact on the mechanical strength of 3D‐printed cylindrical structures tested under compression techniques. The as‐developed composite structure with 1% hBN reinforcement has excellent printability and better mechanical strength (19% compression strength enhancement compared to pure boehmite) without compromising functional properties such as thermal stability and surface area.

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Advances in 3D printing of structural and functional ceramics: Technologies, properties, and applications

Wang,

Bu,

Wang

2024

Journal of the European Ceramic Society

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Ceramic Foams with Controlled Geometries Through 3D‐Printed Sacrificial Templates

Cited by 3 publications

References 91 publications

Microstructure, Mechanical Property and Thermal Conductivity of Porous TiCO Ceramic Fabricated by In Situ Carbothermal Reduction of Phenolic Resin and Titania

Microstructure, Mechanical Property and Thermal Conductivity of Porous TiCO Ceramic Fabricated by In Situ Carbothermal Reduction of Phenolic Resin and Titania

Enhanced Mechanical Properties of Direct Ink Writing (3D Printed) Hexagonal Boron Nitride Reinforced Porous Boehmite Structures

Advances in 3D printing of structural and functional ceramics: Technologies, properties, and applications

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