Uniform alumina microspheres from temperature induced forming in a microfluidic T-junction
نویسندگان
چکیده
منابع مشابه
Breakup of drops in a microfluidic T junction
We propose a mechanism of droplet breakup in a symmetric microfluidic T junction driven by pressure decrement in a narrow gap between the droplet and the channel wall. This mechanism works in a two-dimensional setting where the capillary Rayleigh–Plateau instability of a cylindrical liquid thread, suggested earlier D. Link, S. Anna, D. Weitz, and H. Stone, Phys. Rev. Lett. 92, 054503 2004 as th...
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Simultaneous application of colloidal processing and liquidforming additives to alumina resulted in a sintered density of >99% in 1 h at a temperature as low as 1070°C for a commercial high-purity alumina powder at a total dopant level of 2 mol%. The additives were 0.9% CuO + 0.9% TiOz + 0.1% B 2 0 3 + 0.1% MgO. At higher temperatures or after prolonged sintering, the doped alumina ceramic deve...
متن کاملEffective pressure and bubble generation in a microfluidic T-junction.
To improve the existing trial-and-error process in designing a microfluidic T-junction, a systematic study of the geometrical (mainly the channel length) effects on the generated bubbly/slug flow was conducted to figure out basic design guidelines based on experimental and theoretical analyses. A driving system with dual constant pressure sources, instead of the commonly used dual constant volu...
متن کاملDroplet breakup in an asymmetric microfluidic T junction.
Breakup of non-uniform droplets in an asymmetric T junction consisting of an inlet channel and two different-size outlet channels has been investigated numerically. Also, an analytical approach in the limit of the lubrication approximation has been extended to provide some analytical relations to study the system and verify the numerical results. Parameters that are important in the performance...
متن کاملSHORT COMMUNICATION Correlations of droplet formation in T-junction microfluidic devices: from squeezing to dripping
In this work, we have systematically analyzed the scaling law of droplet formation by cross-flow shear method in T-junction microfluidic devices. The droplet formation mechanisms can be distinguished by the capillary number for the continuous phase (Cac), which are the squeezing regime (Cac \ 0.002), dripping regime (0.01 \ Cac \ 0.3), and the transient regime (0.002 \ Cac\ 0.01). Three corresp...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2013
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.4830358