NDLI: Thermal Diffusivity of Reduced Activation Ferritic/Martensitic Steel Determined by the Time Domain Photoacoustic Piezoelectric Technique

Content Provider	Springer Nature Link
Author	Zhao, Binxing Wang, Yafei Gao, Chunming Sun, Qiming Wang, Pinghuai
Copyright Year	2014
Abstract	The thermal diffusivity of reduced activation ferritic/martensitic steel (CLF-1), which is recognized as the primary candidate structural material for the test blanket module of the international thermal-nuclear experimental reactor, has been studied by the time-domain (TD) photoacoustic piezoelectric (PAPE) technique. The TD PAPE model based on a simplified thermoelastic theory under square-wave modulated laser excitation is presented, relating the TD PAPE signal to the modulation frequency, thermal diffusivity, and other material parameters. Thermal diffusivities of reference samples such as copper and nickel were measured and analyzed, by which the validity of the technique is verified. The thermal diffusivity of the CLF-1 sample was measured to be $$8.2\,\text {mm}^{2}{\cdot }\text {s}^{-1}$$ , which is at a medium level among the ordinary steel materials ( $$3\,\text {mm}^{2}{\cdot }\text {s}^{-1}$$ to $$14\,\text {mm}^{2}{\cdot }\text {s}^{-1})$$ and has decent heat-dissipation ability. The results show that the TD PAPE technique can provide a fast and economic way for the investigation of the thermophysical properties of fusion reactor structural materials.
Starting Page	1150
Ending Page	1155
Page Count	6
File Format	PDF
ISSN	0195928X
Journal	International Journal of Thermophysics
Volume Number	36
Issue Number	5-6
e-ISSN	15729567
Language	English
Publisher	Springer US
Publisher Date	2014-07-04
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Reduced activation ferritic/martensitic steel Thermal diffusivity Time-domain photoacoustic piezoelectric technique Condensed Matter Physics Mechanics Industrial Chemistry/Chemical Engineering Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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