Production and mechanical characterization of Titanium Carbide ISOL target disks fabricated by direct ink writing

Breda, Alessandro; Zanini, Alice; Campagnolo, Alberto; Corradetti, S.; Manzolaro, M.; Meneghetti, Giovanni; Colombo, Paolo; Ballan, M.; Franchin, Giorgia

doi:10.1016/j.ceramint.2023.07.121

Cited by 5 publications

(1 citation statement)

References 33 publications

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“…3 Although green ceramic components can be printed quickly, subsequent debinding and sintering processes are time-consuming. [4][5][6][7] To facilitate the rapid debinding and sintering conditions, two important requisites must be met: (i) the use of very limited organic content in the ink and (ii) the use of innovative rapid sintering techniques. Over the past decade, a significant revolution in ceramic processing has been observed with the development of novel rapid sintering techniques that aim to save energy by drastically reducing sintering temperature and time.…”

Section: Introductionmentioning

confidence: 99%

From rapid prototyping to rapid firing: on the feasibility of high‐speed production for complex BaTiO₃ components

Bhandari,

Hanzel,

Veteška

et al. 2024

J Am Ceram Soc.

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Direct ink writing (DIW) is an attractive additive manufacturing (AM) technology because of its simplicity, production speed, and feedstock flexibility; in addition, the use of a limited amount of binder makes the subsequent thermal debinding process easy. Nevertheless, the conventional approach to debind and sinter AMed components remains extremely slow, representing a bottleneck in the manufacturing process. In order to address such limitation, we explored different rapid sintering strategies: ultrafast high‐temperature sintering (UHS), pressureless spark plasma sintering (P‐SPS), and fast firing (FF), for the densification of BaTiO3 components fabricated by DIW, one of the widely used lead‐free piezoceramics. All sintering technologies allow debinding and sintering of crack‐free components in a few minutes instead of several hours. The final density and microstructure are strongly dependent on the sintering atmosphere (inert for UHS and P‐SPS, air for FF) and a maximum relative density of only ≈72% was obtained when firing occurred in an inert environment, irrespective of the sintering technique (UHS and P‐SPS). An undesired phase transition from tetragonal to hexagonal BaTiO3 was also observed upon UHS and ‐PSPS. On the contrary, FF in air yielded a density of about 95% in a few minutes while maintaining the desired tetragonal polymorph. The results provide proof of feasibility for rapid processing of BaTiO3 components obtained by DIW.

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Section: Introductionmentioning

confidence: 99%

From rapid prototyping to rapid firing: on the feasibility of high‐speed production for complex BaTiO₃ components

Bhandari,

Hanzel,

Veteška

et al. 2024

J Am Ceram Soc.

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First Structured Uranium‐Based Monoliths Produced via Vat Photopolymerization for Nuclear Applications

Zanini,

Celdran,

Walter

et al. 2024

Adv Funct Materials

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Uranium plays an unquestionable role in the framework of nuclear physics, biology, and radiopharmacy. Moreover, uranyl ion UO22+ offers an immense variety of applications due to the unique photosensitivity of its complexes. The excited state of uranyl cation is indeed accessible under ultraviolet‐visible (UV–vis) light, readily producing radical species UO22+* upon light irradiation. Herein, an innovative synthesis protocol is presented to explore the use of uranyl cations as photocatalyst systems for photocurable sol–gel‐based formulations, coupling the photochemical reactions of uranyl cations with photopolymerization‐based additive manufacturing processes. Additive manufacturing has nowadays revolutionized the production of complex structures with arbitrary geometries and has opened up enticing opportunities for innovative technological breakthroughs and highly tailorable systems. The fabrication of micro‐architected components is shown via vat photopolymerization, namely, the Digital Light Processing technique, and ‐3D) printed parts are converted into uranium dicarbide (UC2)/carbon nanocomposite upon carbothermal reduction. This uranyl‐mediated additive manufacturing process constitutes the first application of the synergistic role of uranyl motifs in a photopolymer platform, demonstrating for the first time the possibility to directly pattern uranium‐based materials in complex structures.

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Development of a highly loaded zirconium carbide paste for material extrusion additive manufacturing

Sabata,

Martin,

Watts

et al. 2025

Journal of the European Ceramic Society

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Production and mechanical characterization of Titanium Carbide ISOL target disks fabricated by direct ink writing

Cited by 5 publications

References 33 publications

From rapid prototyping to rapid firing: on the feasibility of high‐speed production for complex BaTiO₃ components

From rapid prototyping to rapid firing: on the feasibility of high‐speed production for complex BaTiO₃ components

First Structured Uranium‐Based Monoliths Produced via Vat Photopolymerization for Nuclear Applications

Development of a highly loaded zirconium carbide paste for material extrusion additive manufacturing

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Production and mechanical characterization of Titanium Carbide ISOL target disks fabricated by direct ink writing

Cited by 5 publications

References 33 publications

From rapid prototyping to rapid firing: on the feasibility of high‐speed production for complex BaTiO3 components

From rapid prototyping to rapid firing: on the feasibility of high‐speed production for complex BaTiO3 components

First Structured Uranium‐Based Monoliths Produced via Vat Photopolymerization for Nuclear Applications

Development of a highly loaded zirconium carbide paste for material extrusion additive manufacturing

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From rapid prototyping to rapid firing: on the feasibility of high‐speed production for complex BaTiO₃ components

From rapid prototyping to rapid firing: on the feasibility of high‐speed production for complex BaTiO₃ components