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- W2390036580 abstract "The Nd2Fe14alloy is the strongest hard magnetic material.In this paper,the thermodynamic properties of Nd-Fe-B system is studied by calculateing the change in Gibbs free energy(ΔG) of the phase transformations of Fe2B、NdB4、Nd2Fe14B(ф phase)、Nd2FeB3(η phase) and the Oxidation reactions of Nd2O3、Fe2O3 and B2O3.The conclusion has been drawn that the formation of the Nd2Fe14B phase is feasible in the Nd-Fe-B alloy system and the fabrication temperature of the Nd-Fe-B permanent magnets must avoid the temperature of the NdB4 and Nd2FeB3 phase transformations.The elements of Nd、Fe and B are easily oxidated and form oxides(Nd2O3、Fe2O3 and B2O3),so the amount of the oxygen should be controlled when fabricateing the Nd-Fe-B magnets." @default.
- W2390036580 created "2016-06-24" @default.
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- W2390036580 date "2011-01-01" @default.
- W2390036580 modified "2023-09-24" @default.
- W2390036580 title "Study on Thermodynamic Properties of Nd-Fe-B-O Quaternary System" @default.
- W2390036580 hasPublicationYear "2011" @default.
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