Fabrication of crescent-shaped ceramic microparticles based on single emulsion microfluidics

Zhou, Chenchen; Man, Jia; Yu, Hongkun; He, Xiao; Man, Luming; Qi, Bin; Li, Jianfeng

doi:10.1016/j.ceramint.2020.12.204

Cited by 8 publications

(5 citation statements)

References 29 publications

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“…1c). Precursors made from such opaque BSs can only be solidi ed into desire-shaped MPs through high-intensity/long-time UV light curing within the templates such as droplets 22,23 , concave molds 7 and so forth. Here, the OPMF system allows us to create sharp-edged MPs using both transparent and nontransparent precursors.…”

Section: Introductionmentioning

confidence: 99%

“…Micro uidic lithography has been utilized to fabricate diverse MPs with high monodispersity, precision, and throughput 18,19 , which includes sharp-edged 3D anisotropic transparent 20,21 and spherical/bowlshaped nontransparent MPs 22,23 . However, the UV light path distortion caused by re ection, scattering, and refraction of the dispersed nanoparticles (NPs) makes it almost impossible to obtain sharp-edged MPs through micro uidic lithography, let alone fabricating them with higher strength by increasing NP content.…”

Section: Introductionmentioning

confidence: 99%

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One-pot microfluidic fabrication of micro ceramic particles

Cho,

Zhou,

Liang

et al. 2024

Preprint

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In the quest for miniaturization across technical disciplines, microscale ceramic blocks emerge as pivotal components, with performance critically dependent on precise scales and intricate shapes. Sharp-edged ceramic microparticles, applied from micromachining to microelectronics, require innovative fabrication techniques for high-throughput production while maintaining structural complexity and mechanical integrity. This research unveils a revolutionary "one-pot microfluidic fabrication" technique, blending two innovative device fabrication strategies, "groove & tongue" and sliding assembling. This approach yields a remarkable variety of microparticles, each intricately shaped and precisely crafted, significantly surpassing traditional methods in both production speed and quality. Optimally designed sintering profiles enhance microparticles’ shape retention and structural strength. Extensive compression and scratch tests validate the superiority of microparticles, suggesting their practicability for diverse applications, such as precise micromachining, sophisticated microrobotics and delicate microsurgical tools. This advancement marks a paradigm shift in microscale manufacturing, offering a scalable solution to meet the demanding specifications of miniaturized technology components.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

One-pot microfluidic fabrication of micro ceramic particles

Cho,

Zhou,

Liang

et al. 2024

Preprint

Self Cite

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“…Thus, the preceramic template can be prepared with fine controllability and flexibility. The commonly used methods to synthesize preceramic templates include sol–gel, 14–17 gel casting, 18,19 replica, 20–22 3D printing, 23–26 microfluidics, 27,28 and so forth. Liang et al 29 .…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the preceramic template can be prepared with fine controllability and flexibility. The commonly used methods to synthesize preceramic templates include sol-gel, [14][15][16][17] gel casting, 18,19 replica, [20][21][22] 3D printing, [23][24][25][26] microfluidics, 27,28 and so forth. Liang et al 29 introduced a phase reunion assisted sol-gel method to prepare hollow ZrO 2 microparticles, which improved the efficiency by reducing the equilibrium time needed for the sol-gel system.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of tubular silica fiber via all‐aqueous microfluidics for geopolymer regulation

Ren

Jiang

et al. 2022

Int J Applied Ceramic Tech

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Lightweight hollow ceramic microfibers/microparticles hold promising prospects in numerous applications. To date, it remains a challenge to develop a fabrication strategy that well balances product quality and efficiency. In this article, an all-aqueous microfluidic method was proposed to prepare tubular polymeric fiber as the preceramic template. The relevant dimensional parameters could be promptly regulated via simple flow rate control. This approach could serve as a general technical route to preparing different kinds of ceramics by switching the types of nanoparticles. Here, silica nanoparticles were introduced and the ceramic microfiber could be got via calcination. Afterward, the tubular silica microfiber was employed to synthesize geopolymer composite by mold casting. The chemically formed interfacial bonding between the silica microfiber and geopolymer matrix was confirmed by elemental analysis. The addition of 10% volume fraction silica microfiber could not only increase the flexural modulus of geopolymer composite by 3.5 times but also effectively inhibited crack propagation under thermal circumstances.

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“…Polyhedral milliparticles (PMPs), an important category of the nonspherical particles, are constructed with more than three flat facets. Compared with the nonspherical milliparticles that evolve from the millispheres, [15][16][17] PMPs are featured with more anisotropic geometry, which causes them to form the oriented assembly structures, 18,19 thus being prospective in the application fields such as selfassembly and bioengineering. 4,6,20 The functions of the PMPs are affected by multiple factors, in which shape is a critical one.…”

Section: Introductionmentioning

confidence: 99%

Tailoring 3D shapes of polyhedral milliparticles by adjusting orthogonal projection in a microfluidic channel

Zhou

Jia

Liang

et al. 2022

Journal of Polymer Science

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Polyhedral milliparticles (PMPs) have promising applications in self‐assembly, tissue engineering, mechanical engineering, and photonics. The shapes and sizes of the PMPs have great impact on their functions. To date, the reported methods for adjusting the shapes and sizes of PMPs are still limited. Especially, it remains a challenge to fabricate the PMPs with high asymmetry. Here, we present a facile and efficient approach that focuses on the alteration of the relative positions between the microchannel and the UV light to tailor the shaping process of the PMPs. By tuning the rotation angle and translation displacement, a variety of monodisperse PMPs with both centrosymmetric and noncentrosymmetrical structures are synthesized, including tetrahedra, pentahedra, hexahedra, and so forth. Moreover, the polymeric PMPs are loaded with silica nanoparticles and further sintered into silica. The obtained silica PMPs hold great potential for the applications such as machining tools, abrasives, and electronics.

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Fabrication of crescent-shaped ceramic microparticles based on single emulsion microfluidics

Cited by 8 publications

References 29 publications

One-pot microfluidic fabrication of micro ceramic particles

One-pot microfluidic fabrication of micro ceramic particles

Synthesis of tubular silica fiber via all‐aqueous microfluidics for geopolymer regulation

Tailoring 3D shapes of polyhedral milliparticles by adjusting orthogonal projection in a microfluidic channel

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