Abstract
When nitrogen is dissolved in several rare earth-iron alloys, their magnetic properties are known to be significantly improved. The present work was undertaken to investigate the solution of nitrogen in Nd2Fe14B in the temperature range 773-1143 K. The total nitrogen intake was measured continuously by thermogravimetry and the amount of dissolved nitrogen was determined by the vacuum fusion technique. The reaction at all temperatures resulted in the formation of an outer nitride layer and an unreacted inner core where no internal nitride formation could be observed by optical microscopy. Depending on temperature and exposure time, significant amounts of nitrogen could be dissolved in the alloy. The X-ray diffraction data revealed major differences in the structure of the outer complex nitride layer at various temperatures.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 307-314 |
| Number of pages | 8 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 127 |
| Issue number | 3 |
| DOIs | |
| State | Published - Oct 2 1993 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Experimental studies on nitrogen solubility in Nd2Fe14B alloy in the temperature range 773-1143 K. / Önneby, C.; Debroy, Tarasankar; Seetharaman, S.
In: Journal of Magnetism and Magnetic Materials, Vol. 127, No. 3, 02.10.1993, p. 307-314.Research output: Contribution to journal › Article
TY - JOUR
T1 - Experimental studies on nitrogen solubility in Nd2Fe14B alloy in the temperature range 773-1143 K
AU - Önneby, C.
AU - Debroy, Tarasankar
AU - Seetharaman, S.
PY - 1993/10/2
Y1 - 1993/10/2
N2 - When nitrogen is dissolved in several rare earth-iron alloys, their magnetic properties are known to be significantly improved. The present work was undertaken to investigate the solution of nitrogen in Nd2Fe14B in the temperature range 773-1143 K. The total nitrogen intake was measured continuously by thermogravimetry and the amount of dissolved nitrogen was determined by the vacuum fusion technique. The reaction at all temperatures resulted in the formation of an outer nitride layer and an unreacted inner core where no internal nitride formation could be observed by optical microscopy. Depending on temperature and exposure time, significant amounts of nitrogen could be dissolved in the alloy. The X-ray diffraction data revealed major differences in the structure of the outer complex nitride layer at various temperatures.
AB - When nitrogen is dissolved in several rare earth-iron alloys, their magnetic properties are known to be significantly improved. The present work was undertaken to investigate the solution of nitrogen in Nd2Fe14B in the temperature range 773-1143 K. The total nitrogen intake was measured continuously by thermogravimetry and the amount of dissolved nitrogen was determined by the vacuum fusion technique. The reaction at all temperatures resulted in the formation of an outer nitride layer and an unreacted inner core where no internal nitride formation could be observed by optical microscopy. Depending on temperature and exposure time, significant amounts of nitrogen could be dissolved in the alloy. The X-ray diffraction data revealed major differences in the structure of the outer complex nitride layer at various temperatures.
UR - http://www.scopus.com/inward/record.url?scp=0027906527&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027906527&partnerID=8YFLogxK
U2 - 10.1016/0304-8853(93)90047-6
DO - 10.1016/0304-8853(93)90047-6
M3 - Article
VL - 127
SP - 307
EP - 314
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - 3
ER -