Enhanced coercivities in die‐upset Nd‐Fe‐B magnets with diffusion‐alloyed additives (Zn, Cu, and Ni)

Autor:	C. D. Fuerst, E. G. Brewer
Rok vydání:	1990
Předmět:	Nickel Materials science Hot working Physics and Astronomy (miscellaneous) chemistry Metallurgy chemistry.chemical_element Grain boundary Zinc Manganese Coercivity Microstructure Copper
Zdroj:	Applied Physics Letters. 56:2252-2254
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.102934
Popis:	Rapidly solidified Nd‐Fe‐B ribbons were crushed and mixed with a fine powder (10–100μm) of a pure element before hot working into fully dense anisotropic magnets. At the high temperatures and pressures required for densification some additives diffused throughout the ribbon matrix and presumably into the neodymium‐rich phase surrounding the Nd2Fe14B grains. In small concentrations (0.5–0.8 wt%), zinc, copper, and nickel additions enhanced the coercivities of die‐upset magnets by 100%, 77%, and 53%, respectively. Additives which did not diffuse thoroughly, such as manganese, had no measurable effect on the coercivities.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::99e70702d68fbe13a49276f737d62395 https://doi.org/10.1063/1.102934 Zobrazit plný text záznamu