2Fe14B相優(yōu)異的磁性能與高溫穩(wěn)定性，其溫度穩(wěn)定性也得到明顯改善，摻雜后合金的剩磁和矯頑力溫度系數(shù)分別為-0.32%/K和-0.41%/K，與純CeFeB合金相比分別提高了38.5%和40.6%。Y和Zr共摻雜后，由于增加的磁晶各向異性場(chǎng)和晶粒尺寸細(xì)化所產(chǎn)生的聯(lián)合效應(yīng)，合金的矯頑力、剩磁和最大磁能積大幅度提高，分別比純CeFeB合金提高了30.9%、58.1%和204.8%。"/>

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Y和Zr摻雜對(duì)CeFeB合金微觀結(jié)構(gòu)和磁性能的影響
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南昌航空大學(xué) 材料科學(xué)與工程學(xué)院，江西 南昌 330063

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國(guó)家自然科學(xué)基金項(xiàng)目（面上項(xiàng)目，重點(diǎn)項(xiàng)目，重大項(xiàng)目）


Effects of Y and Zr Doping on Microstructure and Magnetic Properties for CeFeB Alloy
Author:
Affiliation:

School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China

Fund Project:

National Natural Science Foundation of China (51961027, 51564037, 51401103); Key Research and Development Program of Jiangxi Province (20181ACE50005, 20192ACB50020)

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    摘要:

    研究了Y和Zr摻雜對(duì)CeFeB合金相組成、磁性能和溫度穩(wěn)定性的影響。結(jié)果表明，CeYFeB合金由2:14:1主相和少量α-Fe相組成。Y摻雜可有效提高合金的矯頑力、剩磁和最大磁能積。同時(shí)由于Y2Fe14B相優(yōu)異的磁性能與高溫穩(wěn)定性，其溫度穩(wěn)定性也得到明顯改善，摻雜后合金的剩磁和矯頑力溫度系數(shù)分別為-0.32%/K和-0.41%/K，與純CeFeB合金相比分別提高了38.5%和40.6%。Y和Zr共摻雜后，由于增加的磁晶各向異性場(chǎng)和晶粒尺寸細(xì)化所產(chǎn)生的聯(lián)合效應(yīng)，合金的矯頑力、剩磁和最大磁能積大幅度提高，分別比純CeFeB合金提高了30.9%、58.1%和204.8%。

    Abstract:

    Effects of Y and Zr doping on the phase constituent, magnetic properties, and temperature stability for CeFeB alloy were investigated. The results show that CeYFeB alloy consists of the 2:14:1 main phase and a small amount of α-Fe phase. Magnetic properties including coercivity, remanence, and magnetic product energy improve considerably after Y doping. Meanwhile, the temperature stability is enhanced significantly. Due to the excellent intrinsic magnetic properties and higher temperature stability of Y2Fe14B phase, the remanence and coercivity temperature coefficients are -0.32%/K and -0.41%/K, increasing by 38.5% and 40.6%, respectively, compared to those of the pure CeFeB alloy. After the Y and Zr co-doping, the coercivity, remanence, and magnetic product energy improve greatly, increasing by 30.9%, 58.1%, and 204.8%, respectively, compared to those of pure CeFeB alloy, because of the joint effects of enhanced magnet crystalline anisotropic field and refined grain size.

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周艷霞,李偉,符小坤,侯育花,黃有林.Y和Zr摻雜對(duì)CeFeB合金微觀結(jié)構(gòu)和磁性能的影響[J].稀有金屬材料與工程,2021,50(9):3139~3143.[Zhou Yanxia, Li Wei, Fu Xiaokun, Hou Yuhua, Huang Youlin. Effects of Y and Zr Doping on Microstructure and Magnetic Properties for CeFeB Alloy[J]. Rare Metal Materials and Engineering,2021,50(9):3139~3143.]
DOI：10.12442/j. issn.1002-185X.20200525

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  • 收稿日期:2020-07-22
  • 最后修改日期:2020-08-19
  • 錄用日期:2020-09-02
  • 在線發(fā)布日期: 2021-09-26
  • 出版日期: 2021-09-24