DEVELOPMENT OF HIGH TIME-RESOLUTION LASER FLASH EQUIPMENT FOR THERMAL-DIFFUSIVITY MEASUREMENTS USING MINIATURE-SIZE SPECIMENS IRRADIATED HEAVILY IN A REACTOR

Authors
SHIKAMA T NAMBA C
Citation
T. Shikama et C. Namba, DEVELOPMENT OF HIGH TIME-RESOLUTION LASER FLASH EQUIPMENT FOR THERMAL-DIFFUSIVITY MEASUREMENTS USING MINIATURE-SIZE SPECIMENS IRRADIATED HEAVILY IN A REACTOR, Science Reports of the Research Institutes, Tohoku University, Series A: Physics, Chemistry, and Metallurgy, 40(1), 1994, pp. 125-129
Citations number
10
Categorie Soggetti
Material Science","Metallurgy & Mining
Journal title
Science Reports of the Research Institutes, Tohoku University, Series A: Physics, Chemistry, and Metallurgy → ACNP
ISSN journal
00408808
Volume
40
Issue
1
Year of publication
1994
Pages
125 - 129
Database
ISI
SICI code
0040-8808(1994)40:1<125:DOHTLF>2.0.ZU;2-P
Abstract
For measurements of thermal diffusivity of miniature-size specimens he avily irradiated by neutrons, a new Q-switched laser-flash instrument was developed. In the present instrument the time resolution was impro ved to 0.1 ms by using a laser-pulse width of 25 ns. The realization o f high time-resolution made it possible to measure the thermal diffusi vity of thin specimens. It is expected that copper of 0.7mm thick, and SUS 304 of 0.1mm could be used for the measurements. In case of ATJ g raphite, 0.5mm thick specimen could be used for the reliable measureme nt in the temperature range of 300-1300K.