TY - GEN
T1 - Thermal characterization of micro/nanoscale one-dimensional structures using transient electro-thermal technique
AU - Guo, Jiaqi
AU - Wang, Xinwei
AU - Wang, Tao
AU - Zhang, Lijun
PY - 2007
Y1 - 2007
N2 - In this paper, a transient technique is developed to characterize the thermophysical properties of conductive and non-conductive micro/nanoscale wires/tubes. In this technique, the thin wire/tube to be measured is suspended between two electrodes. When feeding a DC current to the sample, its temperature will increase and take a certain time to reach the steady state. This temperature evolution is probed by measuring the variation of voltage over the wire, which is directly related to resistance/temperature change. The temperature evolution history of the sample can be used to determine its thermal diffusivity. A 25.4-jum thick platinum wire is used as the reference sample to verify this technique. Sound agreement is obtained between the measured thermal diffusivity and the reference value. Applying this transient electro-thermal technique, the thermal diffusivities of single-wall carbon nanotube bundles, polyester fibers, and polyacrylonitrile fibers are measured.
AB - In this paper, a transient technique is developed to characterize the thermophysical properties of conductive and non-conductive micro/nanoscale wires/tubes. In this technique, the thin wire/tube to be measured is suspended between two electrodes. When feeding a DC current to the sample, its temperature will increase and take a certain time to reach the steady state. This temperature evolution is probed by measuring the variation of voltage over the wire, which is directly related to resistance/temperature change. The temperature evolution history of the sample can be used to determine its thermal diffusivity. A 25.4-jum thick platinum wire is used as the reference sample to verify this technique. Sound agreement is obtained between the measured thermal diffusivity and the reference value. Applying this transient electro-thermal technique, the thermal diffusivities of single-wall carbon nanotube bundles, polyester fibers, and polyacrylonitrile fibers are measured.
UR - https://www.scopus.com/pages/publications/70349914510
M3 - Conference contribution
AN - SCOPUS:70349914510
SN - 9781605604305
T3 - Materials Research Society Symposium Proceedings
SP - 68
EP - 84
BT - Materials Research Society Symposium Proceedings - Nanoscale Heat Transport - From Fundamentals to Devices
T2 - Nanoscale Heat Transport - From Fundamentals to Devices - 2007 MRS Spring Meeting
Y2 - 9 April 2007 through 13 April 2007
ER -