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Citation: Yang Jianmci, Su Qiang, Song Lianren, Wang Hongyan. STUDY ON THE Nd-Fe-B-Si ALLOYS[J]. Chinese Journal of Applied Chemistry, ;1989, 6(1): 83-84. shu

STUDY ON THE Nd-Fe-B-Si ALLOYS

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Received Date: 30 January 1988
Available Online: 26 May 1988

Si-doped Nd-Fe-B-alloys (Nd₁₅Fe_77-xSi_xB₈, x=4,8, 16, 18 at%) were prepared in a graphite furnace. X-ray diffraction and scanning electron micrographs of the products showed that besides Nd₂Fe₁₄B there were some Nd-rich phases when silicon had doped in at 8 at%.The Curie temperature(T_C) was increased from 310℃ to 350℃ by do ping with 8-16 at% silicon. When Si content was greater than 16 at%, a new phase was formed and the T_C of the alloy markedly decreased. The density of the alloy slightly deereases with increase of Si when Si content is over 4 at%. The hardness of the alloy has a maximum value at about 8 at% of Si.
- Nd-Fe-B permanent magnet mattrial,
- Iron base RE permanet magnet,
- mater al
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