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Thermal Transport of Microfibers: Advancements in Electrothermal Technique

This study aims to enhance thermal transport research by utilizing a Transient Electrothermal Technique (TET) to test a variety of microfibers. The approach involves adjusting temperature quickly or slowly based on thermal diffusivity levels to achieve instant and accurate measurement results. Current work includes testing polyester and platinum fibers, with future plans to analyze data more effectively and test additional fibers within a three-week timeframe.

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Thermal Transport of Microfibers: Advancements in Electrothermal Technique

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  1. Thermal transporting of microfibers Austin Schwartz Xinwei Wang, Xiaopeng Huang

  2. Outline • Motivation • Objectives • Approach • Method • Work completed • Future work

  3. Motivation • Gather more data on thermal transportation

  4. Objectives • Background information • Verify technique that is used • Gather variety of fibers • Use technique to test fibers

  5. Approach • Thermal Diffusivity • High: Adjust temperature quickly • Low: Adjust temperature slowly • Transient Electrothermal Technique (TET)

  6. Method • Transient Electrothermal Technique (TET) • Can be applied to variety of materials • High Signal Strength • Instant measurement results • Xiaopeng Huang, Jianmei Wang, GyulaEres, XinweiWang, Thermophysicalproperties of multi-wall carbon nanotube bundles at elevated temperatures up to 830 K, Carbon, Volume 49, Issue 5, April 2011, Pages 1680-1691

  7. Electrode with Polyester Fiber

  8. Close-up of Polyester Fiber Scale = 2.22 mm Total length = 5.86 mm

  9. Experimental Set-up

  10. Methods of Data Analysis • Characteristic Point • Linear Fitting • Least Square GuojQ, Wang XW, Wang T. Thermal characterization of microscale conductive and nonconductive wires using transient electrothermal technique. J Appl Phys 2007; 101(6):063537-43

  11. Work Completed • Verified technique using platinum wire http://www.jmny.com/public/miniHome_technical/technicalPapers/Laser%20Welding%20Properties%20of%20Platinum.pdf

  12. Other Work Completed • Silk fiber tested • Needs to be tested again BeforeAfter

  13. Future Work • Better understanding of data analysis • Calculate current 9 other fibers to be tested 3 weeks left fibers 3 week

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