Wettability between Nd 2Fe 14B and Nd-rich phase in Nd-Fe-B alloy system

Shota Nishio; Ryota Goto; Masashi Matsuura; Nobuki Tezuka; Satoshi Sugimoto

doi:10.2320/jinstmet.72.1010

Wettability between Nd ₂Fe ₁₄B and Nd-rich phase in Nd-Fe-B alloy system

Shota Nishio, Ryota Goto, Masashi Matsuura, Nobuki Tezuka, Satoshi Sugimoto

ENG - Materials Science

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The wettability between Nd ₂Fe ₁₄B and Nd-rich phases has been investigated through the sessile drop method. The compositions of prepared Nd-rich ingots were Nd _72.0Fe _26.1B _1.9 (ternary) and Nd ₇₂Fe _22.4Cu _3.7B _1.9 (Cu-added). Nd-rich ingots were cut and put on a polished Nd ₂Fe ₁₄B plate and heated in a furnace. Contact angles between Nd ₂Fe ₁₄B plate and Nd-rich ingots were measured as a parameter of wettability under controlled temperature. For the Cu added sample, both contact angles in all temperature range and temperatures when contact angle starts to change were lower than those for ternary sample. These results indicate Cu substitution yields improvement of wettability. DTA measurements for two Nd-rich ingots reveal that their contact angles starts to change at lower temperature than their melting points It is considered that those phenomena are derived from the existence of Nd ₂Fe ₁₄B/Nd-rich interface.

Original language	English
Pages (from-to)	1010-1014
Number of pages	5
Journal	Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume	72
Issue number	12
DOIs	https://doi.org/10.2320/jinstmet.72.1010
Publication status	Published - 2008 Dec

Keywords

Copper
Nd-Fe-B magnet
Nd-rich phase
Sessile drop method
Wettability

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title = "Wettability between Nd 2Fe 14B and Nd-rich phase in Nd-Fe-B alloy system",

abstract = "The wettability between Nd 2Fe 14B and Nd-rich phases has been investigated through the sessile drop method. The compositions of prepared Nd-rich ingots were Nd 72.0Fe 26.1B 1.9 (ternary) and Nd 72Fe 22.4Cu 3.7B 1.9 (Cu-added). Nd-rich ingots were cut and put on a polished Nd 2Fe 14B plate and heated in a furnace. Contact angles between Nd 2Fe 14B plate and Nd-rich ingots were measured as a parameter of wettability under controlled temperature. For the Cu added sample, both contact angles in all temperature range and temperatures when contact angle starts to change were lower than those for ternary sample. These results indicate Cu substitution yields improvement of wettability. DTA measurements for two Nd-rich ingots reveal that their contact angles starts to change at lower temperature than their melting points It is considered that those phenomena are derived from the existence of Nd 2Fe 14B/Nd-rich interface.",

keywords = "Copper, Nd-Fe-B magnet, Nd-rich phase, Sessile drop method, Wettability",

author = "Shota Nishio and Ryota Goto and Masashi Matsuura and Nobuki Tezuka and Satoshi Sugimoto",

year = "2008",

month = dec,

doi = "10.2320/jinstmet.72.1010",

language = "English",

volume = "72",

pages = "1010--1014",

journal = "Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals",

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T1 - Wettability between Nd 2Fe 14B and Nd-rich phase in Nd-Fe-B alloy system

AU - Nishio, Shota

AU - Goto, Ryota

AU - Matsuura, Masashi

AU - Tezuka, Nobuki

AU - Sugimoto, Satoshi

PY - 2008/12

Y1 - 2008/12

N2 - The wettability between Nd 2Fe 14B and Nd-rich phases has been investigated through the sessile drop method. The compositions of prepared Nd-rich ingots were Nd 72.0Fe 26.1B 1.9 (ternary) and Nd 72Fe 22.4Cu 3.7B 1.9 (Cu-added). Nd-rich ingots were cut and put on a polished Nd 2Fe 14B plate and heated in a furnace. Contact angles between Nd 2Fe 14B plate and Nd-rich ingots were measured as a parameter of wettability under controlled temperature. For the Cu added sample, both contact angles in all temperature range and temperatures when contact angle starts to change were lower than those for ternary sample. These results indicate Cu substitution yields improvement of wettability. DTA measurements for two Nd-rich ingots reveal that their contact angles starts to change at lower temperature than their melting points It is considered that those phenomena are derived from the existence of Nd 2Fe 14B/Nd-rich interface.

AB - The wettability between Nd 2Fe 14B and Nd-rich phases has been investigated through the sessile drop method. The compositions of prepared Nd-rich ingots were Nd 72.0Fe 26.1B 1.9 (ternary) and Nd 72Fe 22.4Cu 3.7B 1.9 (Cu-added). Nd-rich ingots were cut and put on a polished Nd 2Fe 14B plate and heated in a furnace. Contact angles between Nd 2Fe 14B plate and Nd-rich ingots were measured as a parameter of wettability under controlled temperature. For the Cu added sample, both contact angles in all temperature range and temperatures when contact angle starts to change were lower than those for ternary sample. These results indicate Cu substitution yields improvement of wettability. DTA measurements for two Nd-rich ingots reveal that their contact angles starts to change at lower temperature than their melting points It is considered that those phenomena are derived from the existence of Nd 2Fe 14B/Nd-rich interface.

KW - Copper

KW - Nd-Fe-B magnet

KW - Nd-rich phase

KW - Sessile drop method

KW - Wettability

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Wettability between Nd ₂Fe ₁₄B and Nd-rich phase in Nd-Fe-B alloy system

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