TY - JOUR
T1 - In situ detection method for obtaining permeability of Fe-based amorphous alloys
T2 - Ac resistance measurement for Fe84Nb7B9
AU - Ichitsubo, Tetsu
AU - Matsubara, Eiichiro
AU - Tanaka, Satoshi
AU - Nishiyama, Nobuyuki
AU - Amiya, Kenji
N1 - Funding Information:
The authors are grateful to Professor A. Makino of Akita Prefectural University for providing the ribbon samples. This work was financially supported by a Grand-in-Aid for Scientific Research on Priority Areas and Special Cooperation Funds for Promoting Science and Technology on “Nanohetero Metallic Materials” from the Ministry of Education, Culture, Sports, Science, and Technology.
PY - 2005/1/17
Y1 - 2005/1/17
N2 - In this letter, we propose an in situ detection method for obtaining permeability of soft magnetic Fe-based amorphous alloys. The temperature dependence of ac resistance was measured at different frequencies during heat treatment of Fe84Nb7B9 amorphous alloys. A significant increase in the ac (∼1000 kHz) resistance appears at around 920 K during the heating process, which arises from the skin effect caused by a marked increase in sample permeability. This skin effect diminishes when the sample is heated to approximately 1100 K, which corresponds to the decrease in its permeability. Consequently, we note that the ac resistance measurement is useful for quick in situ assessment to achieve the soft magnetic property of an Fe-based amorphous alloy.
AB - In this letter, we propose an in situ detection method for obtaining permeability of soft magnetic Fe-based amorphous alloys. The temperature dependence of ac resistance was measured at different frequencies during heat treatment of Fe84Nb7B9 amorphous alloys. A significant increase in the ac (∼1000 kHz) resistance appears at around 920 K during the heating process, which arises from the skin effect caused by a marked increase in sample permeability. This skin effect diminishes when the sample is heated to approximately 1100 K, which corresponds to the decrease in its permeability. Consequently, we note that the ac resistance measurement is useful for quick in situ assessment to achieve the soft magnetic property of an Fe-based amorphous alloy.
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U2 - 10.1063/1.1852713
DO - 10.1063/1.1852713
M3 - Article
AN - SCOPUS:17044386157
SN - 0003-6951
VL - 86
SP - 1
EP - 3
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 3
M1 - 032503
ER -