Advances in the use of laser-flash techniques for thermal diffusivity measurement

1998 ◽  
Vol 69 (3) ◽  
pp. 1426-1436 ◽  
Author(s):  
M. Sheindlin ◽  
D. Halton ◽  
M. Musella ◽  
C. Ronchi
2011 ◽  
Vol 50 (11S) ◽  
pp. 11RE01 ◽  
Author(s):  
Megumi Akoshima ◽  
Takashi Tanaka ◽  
Satoshi Endo ◽  
Tetsuya Baba ◽  
Yoshio Harada ◽  
...  

2008 ◽  
Vol 34 (5) ◽  
pp. 227-233 ◽  
Author(s):  
Megumi AKOSHIMA ◽  
Mitsue OGWA ◽  
Tetsuya BABA ◽  
Mineo MIZUNO

1994 ◽  
Vol 299 ◽  
Author(s):  
Hossein Maleki ◽  
Lawrence R. Holland

AbstractThe thermal diffusivities of (Hg1−xCdx)1−yTey and (Hg1−xZnx)1−yTeywith 0.55 ≤ y ≤ 1.0 and 0.0125 ≤ x ≤ 0.05465 and of pure Te are measured over a wide temperature range by the laser flash technique. The diffusivity of near pseudobinary Hg1−xCdxTe solids decrease more rapidly with temperature approaching the melting point than pseudobinary solids previously reported. The solid diffusivity for x=0.02817 is 0.83 mm2/s at 371°C, decreasing to 0.22 mm2/s at 614°C. The diffusivity of Te rich (Hg1−xCdx)1−yTey melt increases with x and with temperature. The melt diffusivity for x=0.03934 is 0.91 mm2/s at 485°C, increasing to 4.93 mm2/s at 851°C. For Te rich (Hg1−xZnx)1−yTey melt with x=0.0125 and y=0.7944 there appears to be a minimum diffusivity of about 2.6 mm2/s near 700°C. The thermal diffusivity of pure Te solid is 0.97 mm2/s at 300°C and decreases to 0.64 mm2/s at 439°C. The melt diffusivity is 1.52 mm2/s at 486°C, increasing to 3.48 mm2/s at 584°C.


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