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Updated: May 29, 2026
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Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry
Published on: January 9, 2014
Exploration of in-fiber nanostructures from capillary instability
1Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
Optics Express
|September 22, 2011
Summary
Researchers explored fluid instabilities in novel multi-material fibers during thermal drawing. They analyzed Plateau-Rayleigh instabilities to understand microstructure formation, guiding future nanostructure fabrication.
Area of Science:
- Materials Science
- Fluid Dynamics
- Fiber Optics
Background:
- Emergence of multi-material fibers with concentric glass-polymer structures.
- Motivated by the lower limit of feature size and observed instability phenomena.
- Need to understand fluid instabilities in complex thermal drawing processes.
Purpose of the Study:
- To investigate the stability of microstructures in composite fibers.
- To analyze classical Plateau-Rayleigh instabilities during thermal drawing.
- To provide guidance for fabricating diverse nanostructures.
Main Methods:
- Focusing on radial fluctuation as a key instability mechanism.
- Theoretical analysis of microstructures (shells, filaments).
- Establishment of a viscous materials map through calculations.
Main Results:
- Observed uniform structures consistent with theoretical predictions.
- Developed a viscous materials map that aligns with experimental data.
- Identified Plateau-Rayleigh instabilities as a critical factor in microstructure evolution.
Conclusions:
- The study provides insights into fluid instabilities in microstructured fibers.
- Results guide the fabrication of diverse nanostructures like filaments, wires, and particles.
- Understanding these instabilities is crucial for advanced fiber manufacturing.
