Fabricating geometrically-complex B4C ceramic components by robocasting and pressureless spark plasma sintering

Eqtesadi, Siamak; Motealleh, Azadeh; Perera, Fidel Hugo; Miranda, Pedro; Pajares, Antonia; Wendelbo, Rune; Guiberteau, Fernando; Ortiz, Ángel L.

doi:10.1016/j.scriptamat.2017.10.001

Cited by 59 publications

(26 citation statements)

References 13 publications

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“…In general, advanced ceramic materials are categorized into (i) technical and (ii) functional ceramics. Several examples of technical ceramic materials include oxide‐based materials such as silica (SiO 2 ), alumina (Al 2 O 3 ), stabilized zirconia (ZrO 2 ), toughened Al 2 O 3 or ZrO 2 , hydroxyapatite (HA), tricalcium phosphate (TCP), and nonoxide‐based materials such as silicon carbide (SiC), silicon nitride (Si 3 N 4 ), aluminum nitride (AlN) and boron carbide (B 4 C) . Functional ceramics, on the other hand, cover a broader range of materials that include ferroelectric titanate‐based materials (e.g., BaTiO 3 and PbTiO 3 ), magnetic ferrite‐based materials (e.g., NiFe 2 O 4 and BaFe 12 O 19 ), superconductor materials (YBa 2 Cu 3 O 7 ), and other electroceramic materials .…”

Section: Introductionmentioning

confidence: 99%

“…While a one‐step ceramic AM process is not possible through slurry‐based AM processes, the robocasting technique is regarded as one of the most reliable and ubiquitous technologies to manufacture fine, near‐net shape, and dense ceramic structures with complex morphology when compared among the slurry‐based methods (Table S2, Supporting Information) . With a wide range of materials available, low organic binder content, the fabrication of complex multi‐ceramic structure within different 3D spatial geometry is currently more readily achievable with the ceramic robocasting technique rather than the remaining slurry‐based AM processes.…”

Section: Introductionmentioning

confidence: 99%

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Ceramic Robocasting: Recent Achievements, Potential, and Future Developments

2018

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Additive manufacturing (AM) of ceramic materials has attracted tremendous attention in recent years, due to its potential to fabricate suitable advanced ceramic structures for various engineering applications. Robocasting, a subset of ceramic AM, is an ideal technique for constructing fine and dense ceramic structures with geometrically complex morphology. With the freedom and convenience to deposit various materials within any 3D spatial position, ceramic robocasting opens up unlimited opportunities, which are otherwise hardly attainable from other AM techniques. Here, a summary of the recent progress on the fabrication of single and multi‐ceramic structures by robocasting is provided, as well as the prospects of achieving shapeable ceramic structures. The current challenges in ceramic robocasting and an outlook on its development, especially toward the fabrication of self‐shaping ceramic structures, are also discussed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ceramic Robocasting: Recent Achievements, Potential, and Future Developments

2018

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“…have excellent resolution and high shape complexity, but the printed objects have low particle and high organic contents, usually resulting in significant shrinkage and crack formation. Direct ink writing (DIW), which is the most versatile technology used, was used for the production of objects composed of a variety of materials such as boron carbide, silicon nitride, silicon carbide, yttria‐stabilized zirconia (YSZ), PZT, yttrium‐aluminum garnet (YAG), BTO, zirconia, alumina, silica, rutile TiO 2 , and silica‐titania . DIW enables the construction of composite materials with complex inner 3D patterns.…”

Section: Introductionmentioning

confidence: 99%

A New Approach to 3D Printing Dense Ceramics by Ceramic Precursor Binders

Rosental

Magdassi

2019

Adv Eng Mater

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Fabrication of dense ceramic objects by 3D printing processes is important in achieving improved functions in many applications, such as mechanical, optical, and electrical devices. It is a challenging process, mainly due to the high content of organic binders within the printed object. Upon heating and sintering, the printed object shrinks and becomes porous due to the decomposition of the organic binder. Herein, a new approach is presented based on the utilization of an inorganic binder that is a sol-gel precursor for the same material composing the dispersed ceramic particles. The approach is demonstrated in printing objects composed of barium titanate (BTO), which is an important dielectric and piezoelectric material. This binder also enables us to achieve dispersions with high solid load that exhibits a shear-thinning rheological behavior, which is essential for direct ink writing (DIW) printing technology. The as-printed parts contain only 1 wt% organic materials, having 97.8% of the theoretical density, whereas the BTO binder crystalizes upon heating, without forming undesired secondary phases.

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“…Therefore, the possibility of using the robocasting technique, regarding the manufacture of porous or dense ceramic structures with complex morphology is particularly attractive when compared with the slurry-based methods, especially to produce biomedical devices that are aimed to meet the peculiarities of each patient. 15,16 In this article, we aim to review the most recent contributions and challenges on porous and dense bioceramic structures obtained by the robocasting technique as well as the latest trends on 4D printing materials for biomedical applications. Some current challenges and possible solutions regarding the ideal system for the fabrication of dense robocast ceramic parts with optimal properties will be discussed with the perspective of the potential popularization and viability of this technique.…”

Section: Introduction Technical Approaches -Additive Manufacturing and Robocastingmentioning

confidence: 99%

State of the art in the use of bioceramics to elaborate 3D structures using robocasting

Daguano

Santos

Alves

et al. 2019

IJAMB

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Robocasting, também conhecido como Direct Ink Writing, é uma técnica de fabricação aditiva (AM), que inclui extração direta de sistemas coloidais, que consiste na exposição de camadas e um controlador controlado por computador de uma mídia altamente concentrada nesta extrusão. Este artigo apresenta uma visão geral das contribuições e desafios no desenvolvimento de biomateriais cerâmicos tridimensionais (3D) por esse método de impressão. O estado da arte em diferentes biocerâmicas como alumina, zircônia, fosfato de vidro, vidro / vitrocerâmica e compostos é avaliado e discutido em relação a suas aplicações e comportamento biológico, em uma pesquisa que produziu desde uma produção de próteses dentárias personalizadas a biofabricantes 3D humanos tecidos.Embora o robocasting represente uma interrupção na fabricação de estruturas porosas, como os andaimes para a Engenharia de Tecidos (TE), muitas vantagens ainda são necessárias, mas ainda são divulgadas, essa técnica já está usando a utilização de peças densas. Assim, são necessárias estratégias para a fabricação de biocerâmica densificada, com o objetivo de ampliar as possibilidades dessa técnica de AM. As vantagens e desvantagens e também perspectivas futuras da aplicação do robocasting no processamento biocerâmico também são exploradas.

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Fabricating geometrically-complex B4C ceramic components by robocasting and pressureless spark plasma sintering

Cited by 59 publications

References 13 publications

Ceramic Robocasting: Recent Achievements, Potential, and Future Developments

Ceramic Robocasting: Recent Achievements, Potential, and Future Developments

A New Approach to 3D Printing Dense Ceramics by Ceramic Precursor Binders

State of the art in the use of bioceramics to elaborate 3D structures using robocasting

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