Magnetic Properties of Pr-Fe-Co-Nb-B System Exchange Spring Magnets

Magnetic Properties of Pr-Fe-Co-Nb-B System Exchange Spring Magnets
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Pr-Fe-Co-Nb-B系交换弹簧磁体的磁性能

DOI:
10.1541/ieejfms1990.121.8_784
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发表时间:
1998
影响因子:
--
通讯作者:
T. Konishi
T. Konishi
中科院分区:
--
文献类型:
--
作者:
H. Yamamoto;T. Konishi

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采用单辊快淬法制备了Pr-Fe-Co-W-B系合金的快淬带。研究了成分、轮速和热处理对磁体性能的影响。对以15.0m/S速度制备的Pr9Fe76.7Co8W0.3B6薄带进行了晶化处理,确定了最佳的热处理条件为600℃,3min,此时(BH)max为148.5 kJ/m3。非晶态Pr9Fe76.7Co8W0.3B6合金的晶化温度系数分别为α(Jr)=-0.03%/℃(可逆)和α(Hcj)=-0.45%/℃(不可逆)。采用600℃热处理3min制备的压型Pr9Fe76.7Co8W0.3B6各向同性粘结磁体的(BH)max为86.00kJ/m3,密度为6.16 mg/m3。
The melt-spun ribbons of Pr-Fe-Co-W-B system alloys were prepared by single roller rapid-quenching method. The effects of composition , wheel velocity and heat-treatment on the magnetic properties were investigated. The Pr 9 Fe 76.7 Co 8 W 0.3 B 6 ribbon prepared at a wheel velocity of 15.0 m/s were crystallized by heat-treatment , and the optimum heat-treatment condition was found to be at 600 ℃ for 3 min , then the value of (BH) max was 148.5 kJ/m 3 . The temperature coefficients of J r and H cJ for the ribbons crystallized from the amorphous Pr 9 Fe 76.7 Co 8 W 0.3 B 6 alloy were α (J r )= - 0.03 %/ ℃ (reversible)and α (H cJ )= - 0.45 %/ ℃ (irreversible) , respectively. The value of (BH) max for the compression molding Pr 9 Fe 76.7 Co 8 W 0.3 B 6 isotropic bonded magnet prepared by using the ribbons annealed at 600 ℃ for 3 min is 86.00 kJ/m 3 and the density is 6.16 Mg/m 3 .
Nb和V添加对镨铁钴硼淬火薄带磁性能的影响
DOI: --
发表时间: 2004
期刊: 電気学会マグネティックス研究会資料, MAG-04-216(11月)
影响因子: --
作者:
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通讯作者: 古澤鋼
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DOI: --
发表时间: 2009
期刊:
影响因子: --
作者:
宮脇哲也;渡邉祐介;好田誠;斉藤今朝美;三谷誠司;高梨弘毅;新田淳作
通讯作者: 新田淳作