Elastic Properties of 4-6 nm-thick Glassy Carbon Thin Films.

Nanoscale Research Letters
Mohan Prasad ManoharanM A Haque

Abstract

Glassy carbon is a disordered, nanoporous form of carbon with superior thermal and chemical stability in extreme environments. Freestanding glassy carbon specimens with 4-6 nm thickness and 0.5 nm average pore size were synthesized and fabricated from polyfurfuryl alcohol precursors. Elastic properties of the specimens were measured in situ inside a scanning electron microscope using a custom-built micro-electro-mechanical system. The Young's modulus, fracture stress and strain values were measured to be about 62 GPa, 870 MPa and 1.3%, respectively; showing strong size effects compared to a modulus value of 30 GPa at the bulk scale. This size effect is explained on the basis of the increased significance of surface elastic properties at the nanometer length-scale.

References

Oct 30, 2004·Chemical Communications : Chem Comm·Ramakrishnan RajagopalanHenry C Foley
Apr 2, 2010·ACS Applied Materials & Interfaces·Hoikwan LeeCarlo G Pantano
Jan 1, 2003·Journal of Research of the National Institute of Standards and Technology·Mark R VanLandingham

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Citations

Feb 2, 2016·Nature Materials·J BauerO Kraft
Mar 7, 2012·Small·Chanyoung YimGeorg S Duesberg
Jun 20, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Xianghui ZhangArmin Gölzhäuser
Sep 6, 2017·Advanced Materials·Jens BauerLorenzo Valdevit
Mar 30, 2020·Nature Communications·Cameron CrookLorenzo Valdevit

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