Development of a measurement system for the thermal expansion of a carbon fiber

DOI DOI Web Site Web Site 18 References
  • Iwashita Norio
    Research Institute for Measurement and Analytical Instrumentation, National Metrology Institute of Japan, NMIJ, National Institute of Advanced Industrial Science and Technology, AIST, Japan
  • Watanabe Hiromichi
    Research Institute for Materials and Chemical Measurement, National Metrology Institute of Japan, NMIJ, National Institute of Advanced Industrial Science and Technology, AIST, Japan
  • Yamada Naofumi
    Research Institute for Materials and Chemical Measurement, National Metrology Institute of Japan, NMIJ, National Institute of Advanced Industrial Science and Technology, AIST, Japan

Bibliographic Information

Other Title
  • 炭素繊維の熱膨張計測システムの開発
  • タンソ センイ ノ ネツ ボウチョウ ケイソク システム ノ カイハツ

Search this article

Description

<p>The coefficient of thermal expansion of a carbon fiber in the longitudinal direction is relatively small, and is difficult to measure because of the “negative thermal expansion”, which means that the carbon fiber shrinks when heated around room temperature. In order to realize a simple and highly accurate evaluation, a measurement system that uses a trolley-type sample holder and a direct current heating method was developed. The thermal expansion of the fiber sample in the longitudinal and the diametral (transverse) directions was detected using a laser interferometer and an optical diffraction, respectively. The developed thermal expansion measurement system is explained, and the results of the measurements of the temperature dependence of the thermal expansion coefficient in the longitudinal and the diametral (transverse) directions of several carbon fibers from room temperature to 800 °C are given.</p>

Journal

  • TANSO

    TANSO 2021 (296), 2-8, 2021-01-15

    THE CARBON SOCIETY OF JAPAN

References(18)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top