Hard magnetic properties of nanocrystalline Fe-Nd-B alloys containing α-Fe and intergranular amorphous phase

Akihisa Inoue; Akira Takeuchi; Akihiro Makino; Tsuyoshi Masumoto

doi:10.2320/matertrans1989.36.676

Hard magnetic properties of nanocrystalline Fe-Nd-B alloys containing α-Fe and intergranular amorphous phase

Akihisa Inoue, Akira Takeuchi, Akihiro Makino, Tsuyoshi Masumoto

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

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Abstract

The hard magnetic properties of nanocrystalline Fe-Nd-B alloys containing α-Fe and intergranular amorphous phase were investigated. The remanence was found to have a maximum value of 1.17 T. The precipitated crystallites have the particle sizes of 20 to 60 nm and the thickness of the intergranular amorphous layer is 5 to 30 nm. Further increase in annealing temperature and annealing time causes the increase in particle size of their precipitates as well as the disappearance of the residual amorphous phase. The intergranular amorphous phase as well as the bcc-Fe phase is presumed to act as an effective magnetic exchange-coupled medium.

Original language	English
Pages (from-to)	676-685
Number of pages	10
Journal	Materials Transactions, JIM
Volume	36
Issue number	5
DOIs	https://doi.org/10.2320/matertrans1989.36.676
Publication status	Published - 1995

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abstract = "The hard magnetic properties of nanocrystalline Fe-Nd-B alloys containing α-Fe and intergranular amorphous phase were investigated. The remanence was found to have a maximum value of 1.17 T. The precipitated crystallites have the particle sizes of 20 to 60 nm and the thickness of the intergranular amorphous layer is 5 to 30 nm. Further increase in annealing temperature and annealing time causes the increase in particle size of their precipitates as well as the disappearance of the residual amorphous phase. The intergranular amorphous phase as well as the bcc-Fe phase is presumed to act as an effective magnetic exchange-coupled medium.",

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AU - Takeuchi, Akira

AU - Makino, Akihiro

AU - Masumoto, Tsuyoshi

PY - 1995

Y1 - 1995

N2 - The hard magnetic properties of nanocrystalline Fe-Nd-B alloys containing α-Fe and intergranular amorphous phase were investigated. The remanence was found to have a maximum value of 1.17 T. The precipitated crystallites have the particle sizes of 20 to 60 nm and the thickness of the intergranular amorphous layer is 5 to 30 nm. Further increase in annealing temperature and annealing time causes the increase in particle size of their precipitates as well as the disappearance of the residual amorphous phase. The intergranular amorphous phase as well as the bcc-Fe phase is presumed to act as an effective magnetic exchange-coupled medium.

AB - The hard magnetic properties of nanocrystalline Fe-Nd-B alloys containing α-Fe and intergranular amorphous phase were investigated. The remanence was found to have a maximum value of 1.17 T. The precipitated crystallites have the particle sizes of 20 to 60 nm and the thickness of the intergranular amorphous layer is 5 to 30 nm. Further increase in annealing temperature and annealing time causes the increase in particle size of their precipitates as well as the disappearance of the residual amorphous phase. The intergranular amorphous phase as well as the bcc-Fe phase is presumed to act as an effective magnetic exchange-coupled medium.

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Hard magnetic properties of nanocrystalline Fe-Nd-B alloys containing α-Fe and intergranular amorphous phase

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