Photoacoustic measurement of thermal diffusivity of Fe–Co–Al alloys

2006 ◽  
Vol 424 (1-2) ◽  
pp. 4-6 ◽  
Author(s):  
K.A. Azez
Keyword(s):  
Thermal Diffusivity ◽  
Al Alloys ◽  
Photoacoustic Measurement

Study on Simultaneous Photoacoustic Measurement of Thermal Diffusivity and Thermal Effusivity of Solids

2015 ◽  
Vol 36 (4) ◽  
pp. 709-721 ◽  
Author(s):  
Yoshiki Nagao ◽  
Tetsuya Yamada ◽  
Atsumasa Yoshida ◽  
Kakeru Kagata
Keyword(s):  
Thermal Diffusivity ◽  
Thermal Effusivity ◽  
Photoacoustic Measurement

The Influence of Rare Earth, Strontium and Calcium on the Thermal Diffusivity of Mg-Al Alloys

2011 ◽  
Vol 312-315 ◽  
pp. 824-829 ◽  
Author(s):  
Tomasz Rzychoń ◽  
Andrzej Kiełbus
Keyword(s):  
Thermal Conductivity ◽  
Solid Solution ◽  
Rare Earth ◽  
Thermal Diffusivity ◽  
Magnesium Alloy ◽  
Aluminum Content ◽  
Volume Fraction ◽  
Al Alloys ◽  
Mg17al12 Phase ◽  
Increasing Temperature

The microstructure and thermal diffusivity of as-cast AM60, AE63, AJ63 and AXJ620 alloys were investigated over the temperature range 20–300°C. The microstructure of as-cast AM60 magnesium alloy consists of dendrites of α-Mg solid solution and divorced eutectic containing “islands” of α-Mg and Mg17Al12 phase. In regions adjacent with divorced eutectic, the supersaturation aluminum solute in the α-Mg matrix is observed. The addition of rare earth, calcium and strontium caused the decrease of the volume fraction of Mg17Al12 compound and aluminum content in α-Mg solid solution. Moreover, the intermetallic compounds such as: Al11RE3, Al4Sr, Al3Mg13Sr, Al2Ca are observed in the interdendritic regions. The thermal diffusivity of AM60 magnesium alloy increases with increasing temperature up to 150°C, above this temperature the increase is less marked. The change in the slope of the temperature variation of the thermal diffusivity is caused by a precipitation of Mg17Al12 phase in the supersaturation of α-Mg areas neighboring the divorced eutectic α-Mg+Mg17Al12. The addition of rare earth, calcium and strontium caused the increase of the thermal diffusivity and thermal conductivity due to the decreasing of aluminum content in α-Mg matrix.

Photoacoustic measurement of the thermal diffusivity ofPb1−xSnxTe alloys

1989 ◽  
Vol 39 (11) ◽  
pp. 7967-7970 ◽  
Author(s):  
S. O. Ferreira ◽  
C. Ying An ◽  
I. N. Bandeira ◽  
L. C. M. Miranda ◽  
H. Vargas
Keyword(s):  
Thermal Diffusivity ◽  
Photoacoustic Measurement

Photoacoustic measurement of the thermal diffusivity of Bi added Ge–Se and Ge–Se–Te glasses

1998 ◽  
Vol 108 (5) ◽  
pp. 301-305 ◽  
Author(s):  
B. Thangaraju ◽  
R. Ganesan ◽  
K.S. Sangunni ◽  
E.S.R. Gopal
Keyword(s):  
Thermal Diffusivity ◽  
Photoacoustic Measurement

Determination of thermal diffusivity and thermal conductivity of Mg–Al alloys

2003 ◽  
Vol 341 (1-2) ◽  
pp. 152-157 ◽  
Author(s):  
A. Rudajevová ◽  
M. Staněk ◽  
P. Lukáč
Keyword(s):  
Thermal Conductivity ◽  
Thermal Diffusivity ◽  
Al Alloys
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