Palit Sagar, S and Chattoraj, I and Rao, Venkatesh and Ghatak, S K and Mitra, A (1997) Influence of hydrogen on the magnetic properties of amorphous Fe---Si---B fibres. Journal of Magnetism and Magnetic Materials, 166 (1-2). pp. 186-192.
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The saturation magnetization and switching characteristics of amorphous Fe77.5Si7.5B15 fibres were investigated after hydrogen incorporating by the electrochemical method. The switching field (H*) increased from its as-received value (5.57 Am−1 to 18.62 Am−1 after charging with a current density (Ich) of 30 mA cm−2 for 2 h. The saturation magnetization (Ms) decreased with hydrogen content up to a critical concentration corresponding to Ich = 60 mA cm−2 after 2 h of charging. At this critical current density, Ms decreased from 1.57 T, its as-received value, to 0.89 T. The results are explained by considering various kinds of interaction of hydrogen with metals, such as electron exchange, volume dilation, etc.
|Uncontrolled Keywords:||Amorphous fibre; Magnetic properties; Switching characteristics; Hydrogenation; Fe-Si-B alloy; Electrochemical charging|
|Divisions:||Material Science and Technology|
|Deposited By:||Sahu A K|
|Deposited On:||14 May 2010 11:48|
|Last Modified:||06 Feb 2012 17:31|
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