Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets : The 5th Joint MMM−Intermag Conference
Bogatin, Y. ; Robinson, M. ; Ormerod, J.
[S.l.] : American Institute of Physics (AIP)
Published 1991
[S.l.] : American Institute of Physics (AIP)
Published 1991
| ISSN: |
1089-7550
|
|---|---|
| Source: |
AIP Digital Archive
|
| Topics: |
Physics
|
| Notes: |
Nd-Fe-B powder produced by conventional methods is pyrophoric, and exhibits poor corrosion resistance. Magnets made from powder are also susceptible to corrosion. Conventional methods of production are complicated, potentially hazardous, and relatively expensive. A novel, low cost, less hazardous method of producing powder and magnets with high corrosion resistance and Curie point is discussed. Nd-Fe-B alloys are milled in water, vacuum dried, and passivated at a suitable temperature in a nitrogen or carbon dioxide medium. During passivation, a protective layer, comprised of nitride and/or carbide phases, is formed in the surface region of the powder particles. This powder is not pyrophoric, and may be stored in a laboratory air environment for an extended period of time with no loss in magnetic properties. Compacted and sintered magnets produced from this powder are also highly corrosion resistant, and exhibit a higher Curie point compared to conventionally produced magnets. A description of the novel technology, and a discussion of the properties of Nd-Fe-B-C/N powder and magnets is given.
|
| Type of Medium: |
Electronic Resource
|
| URL: |
| _version_ | 1798289663195086848 |
|---|---|
| autor | Bogatin, Y. Robinson, M. Ormerod, J. |
| autorsonst | Bogatin, Y. Robinson, M. Ormerod, J. |
| book_url | http://dx.doi.org/10.1063/1.349868 |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLZ218640218 |
| iqvoc_descriptor_title | iqvoc_00000080:production |
| issn | 1089-7550 |
| journal_name | Journal of Applied Physics |
| materialart | 1 |
| notes | Nd-Fe-B powder produced by conventional methods is pyrophoric, and exhibits poor corrosion resistance. Magnets made from powder are also susceptible to corrosion. Conventional methods of production are complicated, potentially hazardous, and relatively expensive. A novel, low cost, less hazardous method of producing powder and magnets with high corrosion resistance and Curie point is discussed. Nd-Fe-B alloys are milled in water, vacuum dried, and passivated at a suitable temperature in a nitrogen or carbon dioxide medium. During passivation, a protective layer, comprised of nitride and/or carbide phases, is formed in the surface region of the powder particles. This powder is not pyrophoric, and may be stored in a laboratory air environment for an extended period of time with no loss in magnetic properties. Compacted and sintered magnets produced from this powder are also highly corrosion resistant, and exhibit a higher Curie point compared to conventionally produced magnets. A description of the novel technology, and a discussion of the properties of Nd-Fe-B-C/N powder and magnets is given. |
| package_name | American Institute of Physics (AIP) |
| publikationsjahr_anzeige | 1991 |
| publikationsjahr_facette | 1991 |
| publikationsjahr_intervall | 8009:1990-1994 |
| publikationsjahr_sort | 1991 |
| publikationsort | [S.l.] |
| publisher | American Institute of Physics (AIP) |
| reference | 70 (1991), S. 6594-6596 |
| search_space | articles |
| shingle_author_1 | Bogatin, Y. Robinson, M. Ormerod, J. |
| shingle_author_2 | Bogatin, Y. Robinson, M. Ormerod, J. |
| shingle_author_3 | Bogatin, Y. Robinson, M. Ormerod, J. |
| shingle_author_4 | Bogatin, Y. Robinson, M. Ormerod, J. |
| shingle_catch_all_1 | Bogatin, Y. Robinson, M. Ormerod, J. Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets : The 5th Joint MMM−Intermag Conference Nd-Fe-B powder produced by conventional methods is pyrophoric, and exhibits poor corrosion resistance. Magnets made from powder are also susceptible to corrosion. Conventional methods of production are complicated, potentially hazardous, and relatively expensive. A novel, low cost, less hazardous method of producing powder and magnets with high corrosion resistance and Curie point is discussed. Nd-Fe-B alloys are milled in water, vacuum dried, and passivated at a suitable temperature in a nitrogen or carbon dioxide medium. During passivation, a protective layer, comprised of nitride and/or carbide phases, is formed in the surface region of the powder particles. This powder is not pyrophoric, and may be stored in a laboratory air environment for an extended period of time with no loss in magnetic properties. Compacted and sintered magnets produced from this powder are also highly corrosion resistant, and exhibit a higher Curie point compared to conventionally produced magnets. A description of the novel technology, and a discussion of the properties of Nd-Fe-B-C/N powder and magnets is given. 1089-7550 10897550 American Institute of Physics (AIP) |
| shingle_catch_all_2 | Bogatin, Y. Robinson, M. Ormerod, J. Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets : The 5th Joint MMM−Intermag Conference Nd-Fe-B powder produced by conventional methods is pyrophoric, and exhibits poor corrosion resistance. Magnets made from powder are also susceptible to corrosion. Conventional methods of production are complicated, potentially hazardous, and relatively expensive. A novel, low cost, less hazardous method of producing powder and magnets with high corrosion resistance and Curie point is discussed. Nd-Fe-B alloys are milled in water, vacuum dried, and passivated at a suitable temperature in a nitrogen or carbon dioxide medium. During passivation, a protective layer, comprised of nitride and/or carbide phases, is formed in the surface region of the powder particles. This powder is not pyrophoric, and may be stored in a laboratory air environment for an extended period of time with no loss in magnetic properties. Compacted and sintered magnets produced from this powder are also highly corrosion resistant, and exhibit a higher Curie point compared to conventionally produced magnets. A description of the novel technology, and a discussion of the properties of Nd-Fe-B-C/N powder and magnets is given. 1089-7550 10897550 American Institute of Physics (AIP) |
| shingle_catch_all_3 | Bogatin, Y. Robinson, M. Ormerod, J. Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets : The 5th Joint MMM−Intermag Conference Nd-Fe-B powder produced by conventional methods is pyrophoric, and exhibits poor corrosion resistance. Magnets made from powder are also susceptible to corrosion. Conventional methods of production are complicated, potentially hazardous, and relatively expensive. A novel, low cost, less hazardous method of producing powder and magnets with high corrosion resistance and Curie point is discussed. Nd-Fe-B alloys are milled in water, vacuum dried, and passivated at a suitable temperature in a nitrogen or carbon dioxide medium. During passivation, a protective layer, comprised of nitride and/or carbide phases, is formed in the surface region of the powder particles. This powder is not pyrophoric, and may be stored in a laboratory air environment for an extended period of time with no loss in magnetic properties. Compacted and sintered magnets produced from this powder are also highly corrosion resistant, and exhibit a higher Curie point compared to conventionally produced magnets. A description of the novel technology, and a discussion of the properties of Nd-Fe-B-C/N powder and magnets is given. 1089-7550 10897550 American Institute of Physics (AIP) |
| shingle_catch_all_4 | Bogatin, Y. Robinson, M. Ormerod, J. Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets : The 5th Joint MMM−Intermag Conference Nd-Fe-B powder produced by conventional methods is pyrophoric, and exhibits poor corrosion resistance. Magnets made from powder are also susceptible to corrosion. Conventional methods of production are complicated, potentially hazardous, and relatively expensive. A novel, low cost, less hazardous method of producing powder and magnets with high corrosion resistance and Curie point is discussed. Nd-Fe-B alloys are milled in water, vacuum dried, and passivated at a suitable temperature in a nitrogen or carbon dioxide medium. During passivation, a protective layer, comprised of nitride and/or carbide phases, is formed in the surface region of the powder particles. This powder is not pyrophoric, and may be stored in a laboratory air environment for an extended period of time with no loss in magnetic properties. Compacted and sintered magnets produced from this powder are also highly corrosion resistant, and exhibit a higher Curie point compared to conventionally produced magnets. A description of the novel technology, and a discussion of the properties of Nd-Fe-B-C/N powder and magnets is given. 1089-7550 10897550 American Institute of Physics (AIP) |
| shingle_title_1 | Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets : The 5th Joint MMM−Intermag Conference |
| shingle_title_2 | Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets : The 5th Joint MMM−Intermag Conference |
| shingle_title_3 | Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets : The 5th Joint MMM−Intermag Conference |
| shingle_title_4 | Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets : The 5th Joint MMM−Intermag Conference |
| sigel_instance_filter | dkfz geomar wilbert ipn albert |
| source_archive | AIP Digital Archive |
| timestamp | 2024-05-06T08:04:25.148Z |
| titel | Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets : The 5th Joint MMM−Intermag Conference |
| titel_suche | Water milling and gas passivation method for production of corrosion resistant Nd-Fe-B-N/C powder and magnets The 5th Joint MMM−Intermag Conference |
| topic | U |
| uid | nat_lic_papers_NLZ218640218 |