ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The effect of heat treatment and binder additions on the magnetic behavior of P/M(powder metallurgy) processed Fe〈sub〉73.5〈/sub〉Si〈sub〉13.5〈/sub〉B〈sub〉9〈/sub〉Cu〈sub〉1〈/sub〉Nb〈sub〉3〈/sub〉 alloy has been investigated. FeSiBCuNb amorphous ribbons produced by plannar flow casting were annealed at temperatures between 480°C and 620°C for 20 to 60 minutes. The annealed specimens were milled using a pin crusher and a hammer mill. The powder was then mixed with mineral or polymer binders to press into a toroidal shape of inductor core at room temperature. Fe〈sub〉73.5〈/sub〉Si〈sub〉13.5〈/sub〉B〈sub〉9〈/sub〉Cu〈sub〉1〈/sub〉Nb〈sub〉3〈/sub〉 alloy showed maximum permeability when annealed at 540°C for 40 minutes. The microstructure of the annealed ribbon has a ultra-fine α-Fe(Si) grain, ranging from 10 to 20 nm in diameter. Inductor cores produced using a glass binder showed better magnetic properties than polymers or oxide binders. The use of mineral binders in producingnanocrystalline inductor cores significantly improved magnetic properties, compared to a commercial moly-permalloy powder core
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/08/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.449-452.501.pdf
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