scholarly journals Thermal Diffusivity Measurements of Fe1-xO by the Devised Laser-Flash Method for Small Samples

1996 ◽  
Vol 82 (9) ◽  
pp. 795-797 ◽  
Author(s):  
Hiromichi OHTA ◽  
Tomohiro AKIYAMA ◽  
Kimihito HATORI ◽  
Jun-ichiro YAGI ◽  
Yoshio WASEDA
2005 ◽  
Vol 26 (6) ◽  
pp. 1883-1898 ◽  
Author(s):  
B. Hay ◽  
J. R. Filtz ◽  
J. Hameury ◽  
L. Rongione

1990 ◽  
Vol 98 (1135) ◽  
pp. 305-307 ◽  
Author(s):  
Gaku OGURA ◽  
In-Kook SUH ◽  
Hiromichi OHTA ◽  
Yoshio WASEDA

2002 ◽  
Vol 19 (4) ◽  
pp. 569-571 ◽  
Author(s):  
Jin Wei-Qing ◽  
Nagashima Toshio ◽  
Yoda Shinichi ◽  
Liang Xin-An ◽  
Pan Zhi-Lei

1993 ◽  
Vol 48 (7) ◽  
pp. 784-786
Author(s):  
H. Ohta ◽  
An-Pang Tsai ◽  
A. Inoue ◽  
T. Masumoto

Abstract A new cell has been developed for measuring the thermal diffusivity of small samples [about (5 x 2 x 0.5) mm3], using the laser flash method. The thermal diffusivities of small samples of titanium, SUS304 and Pyrex 7740 glass measured with this cell agree well with those obtained from samples of 10 mm in diameter and 0.4 mm in thickness. Then, the thermal diffusivity between 300 K and 950 K of quasicrystalline Al72Pd20 Mn8 with a single domain size of 5 mm, and that of crystalline Al60Pd25 Mn15 were measured. The thermal diffusivity of quasicrystalline Al72 Pd20 Mn8 was found to be 4 to 7 times smaller than that of crystalline Al60Pd25Mn15 .


1990 ◽  
Vol 61 (10) ◽  
pp. 2645-2649 ◽  
Author(s):  
Hiromichi Ohta ◽  
Gaku Ogura ◽  
Yoshio Waseda ◽  
Mustumi Suzuki

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