TY - JOUR
T1 - Thermal conductivity measurement of solid materials using an “ITX” method–A pilot study using DNA solid films
AU - Tomo, Yoko
AU - Koga, Hibiki
AU - Fukunaga, Takanobu
AU - Kurata, Kosaku
AU - Matsuno, Hisao
AU - Tanaka, Keiji
AU - Takamatsu, Hiroshi
N1 - Funding Information:
This work was supported by the Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research (KAKENHI) [Grant Number JP18H03757]. We thank Dr. James J. Cannon from Kyushu University and Edanz Group ( https://en-author-services.edanzgroup.com/ac ) for editing the English text of a draft of this manuscript.
Funding Information:
This work was supported by the Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research (KAKENHI) [Grant Number JP18H03757]. We thank Dr. James J. Cannon from Kyushu University and Edanz Group ( https://en-author-services.edanzgroup.com/ac) for editing the English text of a draft of this manuscript.
Publisher Copyright:
© 2021 The Author(s)
PY - 2021/9
Y1 - 2021/9
N2 - A new method is proposed to measure the longitudinal thermal conductivity of fibers and films. The thermal conductivity of novel one- and two-dimensional materials has previously been measured using a T-type probe. Although this method is applicable to polymer fibers and films, the measurements are influenced by the thermal contact resistance between the probe and the sample. We therefore propose a so-called ITX method, which determines the inherent thermal conductivity of a sample from measurements made in three geometric configurations (“I”, “T”, and “X” shape) of the sample, heat sinks, and measurement probe. Application of the method to DNA solid films demonstrated that the thermal conductivity can be accurately determined irrespective of the relative contribution of the thermal contact resistance to the overall thermal resistance.
AB - A new method is proposed to measure the longitudinal thermal conductivity of fibers and films. The thermal conductivity of novel one- and two-dimensional materials has previously been measured using a T-type probe. Although this method is applicable to polymer fibers and films, the measurements are influenced by the thermal contact resistance between the probe and the sample. We therefore propose a so-called ITX method, which determines the inherent thermal conductivity of a sample from measurements made in three geometric configurations (“I”, “T”, and “X” shape) of the sample, heat sinks, and measurement probe. Application of the method to DNA solid films demonstrated that the thermal conductivity can be accurately determined irrespective of the relative contribution of the thermal contact resistance to the overall thermal resistance.
UR - http://www.scopus.com/inward/record.url?scp=85107160271&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85107160271&partnerID=8YFLogxK
U2 - 10.1016/j.ijheatmasstransfer.2021.121501
DO - 10.1016/j.ijheatmasstransfer.2021.121501
M3 - Article
AN - SCOPUS:85107160271
SN - 0017-9310
VL - 176
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
M1 - 121501
ER -