Journal
COMPUTATIONAL MATERIALS SCIENCE
Volume 44, Issue 4, Pages 1218-1221Publisher
ELSEVIER
DOI: 10.1016/j.commatsci.2008.08.003
Keywords
Fe-Si powders; Artificial neural network; Genetic algorithm; Coercivity; Nanocrystalline
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In this investigation a theoretical model based on artificial neural network (ANN) and genetic algorithm (CA) has been developed to optimize the magnetic softness in nanocrystalline Fe-Si powders prepared by mechanical alloying (MA). The ANN model was used to correlate the milling time, chemical composition, milling speed, and ball to powders ratio (BPR) to coercivity and crystallite size of nanocrystalline Fe-Si powders. The GA-ANN combined algorithm was incorporated to find the optimal conditions for achieving the minimum coercivity. By comparing the predicted values with the experimental data it is demonstrated that the combined CA-ANN algorithm is a useful, efficient and strong method to find the optimal milling conditions and chemical composition for producing nanocrystalline Fe-Si powders with minimum coercivity. (C) 2008 Elsevier B.V. All rights reserved.
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