| 000 | 01588nab a2200205 4500 | ||
|---|---|---|---|
| 005 | 20260520000937.0 | ||
| 008 | 260224s2009 xxu | ||
| 245 | 0 | 0 | _aCorrosion behavior of conventional and spark plasma-sintered Nd-Fe-B permanent magnets in different solutions |
| 260 |
_a _b _cjul. 2009 |
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| 270 | _a03/08/2010 ; 03/08/2010 | ||
| 300 | _a4 p. ; 501-504 | ||
| 520 | _aTranscripción del resumen del autor. Spark plasma sintering (SPS) and conventional sintering techniques were used to fabricate sintered Nd-Fe-B permanent magnets. The corrosion behaviors of both magnets in sodium chloride (NaCl), sodium hydroxide (NaOH), and sulfuric acid (H2SO4) solutions were studied. The weight-loss curves indicate that both magnets exhibit passive behavior in alkaline solution and dissolve actively in acid solution. SEM observations show that the conventional sintered Nd-Fe-B magnets exhibit typical intergranular corrosion. In the SPS magnet, however, intergranular corrosion through the Nd-rich phase is suppressed effectively due to the unique microstructure of the magnets, i.e., the grain size of the Nd2Fe14B main phase is fine and uniform, and the fine Nd-richphase does notform along the grain boundaries of main phase as with conventional magnets, but agglomerates into the triple junctions. As a result, the SPS Nd-Fe-B magnets possess excellent corrosion resistance. | ||
| 581 | _a7 | ||
| 773 | 0 |
_tCorrosion _g65 |
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| 942 | _cARTICULO | ||
| 100 | 1 |
_aLiu, W.Q. _941528 |
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| 100 | 1 |
_aYue, M. _919670 |
|
| 100 | 1 |
_aZhang, D.T. _941529 |
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| 999 |
_c175695 _d175695 |
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