THE WORLD OF SUBSECOND THERMOPHYSICS

摘要

The measurement techniques developed in the last thirty-five years for the accurate measurement of thermophysical properties at high temperatures (800- 3700 K) using subsecond current-heating are reviewed. Only experiments of total duration around 1 s are considered, with data acquisition performed at the submillisecond level. Emphasis is placed on the physics of the different techniques, as developed in major national measurement institutes around the world. A complete survey is provided, covering multiproperty experiments, extensions to thermal expansion and thermal conductivity and measurements at the melting point. An intercomparison of experimental results available in the literature provides an indirect evaluation of the validity of these techniques.