%0 Journal Article
%T High-Temperature AC Magnetic Properties of Nanocrystalline Finemet Alloys with Co Addition<br>HIGH-TEMPERATURE AC MAGNETIC PROPERTIES OF NANOCRYSTALLINE FINEMET ALLOYS WITH Co ADDITION
%A YH Ding
%A X Liu
%A SS Zhao
%A Y Long
%A RC Ye
%A YQ Chang
%A and FR Wan
%A <br>Y.H.
%A Ding
%A X.
%A Liu
%A S.S.
%A Zhao
%A Y.
%A Long
%A R.C.
%A Ye
%A Y.Q.
%A Chang
%A F.R.
%A Wan
%J 金属学报(英文版)
%D 2007
%I 
%X High-temperature AC magnetic properties for (Fe0.5Co0.5)73.5Cu1Nb3Si13.5B9 alloy annealed at various temperatures have been investigated using an impedance analyzer. Annealing temperature Ta has obvious effects on high-temperature AC magnetic properties of the alloy. The Hopkinson peak appears only in the amorphous alloy when Ta≤703K. As Ta increases above 733K, the real part of the complex initial permeability μi' descends gradually, μi' decreases more slowly with temperature in the high temperature range. The high-temperature (about 750K) AC initial permeability for the alloy annealed at Ta=763K has been found to maintain a stable high value of 950 up to a frequency of ~ 1×105Hz. Partial substitution of Co for Fe in the Fe73.5Cu1Nb3Si13.5B9 alloy leads to an increase of around 110K of the Curie temperature of the amorphous phase, much higher than Ge-containing Finemet alloy.
%K high temperature
%K nanocrystalline
%K permeability spectra<br>高温
%K 锕
%K 磁性
%K 非晶态合金
%K 霍普金森顶点
%K 渗透性光谱
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=A1CF72C9E4626BE2184D24A90DF74FAC&yid=A732AF04DDA03BB3&vid=A04140E723CB732E&iid=94C357A881DFC066&sid=170CE8B011EA4FD9&eid=CF6CB42CFF3D4C4E&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=19