Chapter 19.5

Chapter 19.5 - Thermal conductivity of various materials at...

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21 MSE 2090: Introduction to Materials Science Chapter 19, Thermal Properties Thermal conductivity of various materials at RT Diamond: 2310 Graphite: along c-axis: 2000 along a-axis: 9.5 SiO 2 crystalline along c-axis: 10.4 along a-axis: 6.2 amorphous: 1.38
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MSE 2090: Introduction to Materials Science Chapter 19, Thermal Properties Thermal conductivity of polymer nanofibers Although, normally, polymers are thermal insulators (k ~ 0.1 Wm -1 K -1 ), it has been demonstrated in atomistic simulations [Henry & Chen, PRL 101, 235502, 2008] that thermal conductivity of individual polymer chains can be very high. This finding has been supported by recent experimental study of high-quality ultra-drawn polyethylene nanofibers with diameters of 50-500 nm and lengths up to tens of millimeters [Shen et al., Nat. Nanotechnol. 5, 251, 2010] Æ it has been demonstrated that the nanofibers conducts heat just as well as most metals, yet remain electrical insulators. Making the nanofibers: Pulling a thin thread of
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This note was uploaded on 02/14/2012 for the course MSE 2090 taught by Professor Leoindzhiglei during the Fall '10 term at UVA.

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Chapter 19.5 - Thermal conductivity of various materials at...

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