Development of Rare-Earth・Iron・Boron system exchange coupling type bonded magnet materials with high quality heat-resistant.

开发高品质耐热稀土·铁·硼系交换耦合型粘结磁体材料。

• 批准号: 16360159
• 负责人: YAMAMOTO Hiroshi
• 金额: $ 5.76万
• 依托单位: Meiji University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360159/
• 关键词: Rare-Earth system alloy; melt-spun ribbon; bonded magnet; magnetic properties; high coercivity; heat-resistant; 希土類-鉄-ボロン系合金; 不可逆減磁率

The melt-spun ribbons of Didymium-Fe-B and Pr-Fe-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. And some properties of bonded magnets prepared by using these ribbons were examined. The sunmnaly of the experimental results is following.In Didymium-Fe-B alloy system, the melt-spun ribbons of Didymium_<12.5>Fe_<68>Co_<10>Nb_1V_1Tb_<0.5>B_7 prepared at a wheel velocity of 17.5 m/s were crystallized by heat treatment. The optimum heat treatment condition was found to be at 600℃ for 5 min. The values of (BH)_<max> and H_<cJ> amount to 103.6 kJ/m^3, 1628.0 kA/m, respectively. The temperature coefficients of J_r and H_<cJ> for the crystallized ribbons were α (J_r)_<ave>=-0.03 %/℃(reversible) and α (H_<cJ>)=-0.37 %/℃(irreversible) for the temperature range 25 to 125℃. The compression molded Didymium_<12.5>Fe_<68> Co_<10>Nb_1V_1Tb_<0.5>B_7 isotropic bonded magnet, p … More repared by using the ribbons annealed at 600℃ for 5 min, achieve the (BH)_<max> of 66.2 kJ/m^3. The density amount to 6.32 Mg/m^3. At 150℃ irreversible losses of -2.50 % result.In Pr-Fe-B system alloys, melt-spun ribbons of Pr_xFe_<91.5-x-y-z>Co_yTi_<1.5>B_zSi_<0.5> (x = 10.0〜13.0, y = 8.0〜12.0, z=7.0〜14.0) alloys were prepared by the single roller liquid rapid-quenching method, and the effects of composition, wheel velocity and annealing condition on the magnetic properties were studied. The optimum preparation conditions and some of the properties were as follows : composition : Pr_<11>Fe_<68.5>Co_8Ti_<1.5>B_<10.5>Si_<0.5> ; wheel velocity : 10.0 m/s and annealing condition : 650℃ for 0 min in Ar atmosphere ; magnetic properties J_r=0.8 T (, H_<cJ>=1570 kA/m, H_<cB> = 550 kA/m, (BH)_<max> = 111.2 kJ/m^3, H_k/H_<cJ>×100 = 24.9%, α(J_r) =-0.04%/℃, α (H_<cJ>)=-0.37%/℃ and T_c = 403℃. From a TEM observation, the average particle size of this ribbon was found to be about 23 nm. The compression molding isotropic bonded magnets were prepared by using Pr_<11>Fe_<68.5>Co_8Ti_<1.5>B_<10.5>Si_<0.5> ribbons annealed at 600℃ for 5 min. The magnetic properties of this bonded magnet were J_r = 0.60 T (6.0 kG), H_<cJ> = 1530 kA/m, H_<cB> = 420 kA/m and (BH)_<max>=66.8 kJ/m^3. The irreversible losses of Pr_<11>Fe_<66.5>Co_<10>Ti_<1.5>B_<10.5>Si_<0.5> and Pr_<11>Fe_<64.5>Co_<12>Ti_<1.5>B_<10.5>Si_<0.5> bonded magnets were smaller than that of MQP-O one at 150℃. Less

采用单辊快淬法制备了Didymium-Fe-B和Pr-Fe-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。并对用该磁带制备的粘结磁体的一些性能进行了测试。实验结果表明：在Dy-Fe-B合金系中，以17.5m/S的轮速制备的Didymium_&lt；12.5&gt；Fe_&lt；68&gt；Co_&lt；10&gt；Nb_1V_1Tb_&lt；0.5&gt；B_7薄带经热处理后结晶。最佳热处理条件为600℃/5min。(BH)_lt；max&gt；和H_&lt；Cj&gt；分别为103.6 kJ/m^3、1628.0 kA/m。晶化薄带的J_r和H_&lt；Cj&gt；温度系数分别为α(J_R)_&lt；Ave&gt；=-0.03%/℃(可逆)和α(H&lt；Cj&gt；)=-0.37%/℃(不可逆)，温度范围为25~125℃。模压Didymi12.5&gt；Fe_&lt；68&gt；Co_&lt；10&gt；Nb_1V_1Tb_&lt；0.5&gt；B_7各向同性粘结磁体，p…在Pr-Fe-B系Pr-Fe-B系合金中，Pr_xFe_&lt；91.5-x-y-z&gt；Co_yTi_&lt；1.5&gt；B_zSi_&lt；0.5&gt；的(BH)_lt；max&gt_1达到66.2kJ/m~(-3)，密度为6.32 mg/m~(-3)，150℃不可逆损耗为-2.50%。在Pr-Fe-B系合金中，用Pr-Fe-B系合金采用单辊液态快淬法制备了(x=10.0~13.0，y=8.0~12.0，z=7.0~14.0)合金，研究了成分、轮速和热处理条件对合金磁性能的影响。最佳制备条件和性能如下：成分：Pr_&lt；11&gt；Fe_&lt；68.5&gt；Co_8Ti_&lt；1.5&gt；B_&lt；10.5&gt；Si_&lt；0.5&gt；，轮速：10.0m/S，在Ar气氛中，退火条件：650℃，0min，磁性能Jr=0.8T(，H&lt；Cj&gt；=1570kA/m，H&lt；Cb&gt；=550kA/m，(BH)=111.2 kJ/m^3，H_k/H_&lt；CJ&gt；×111.2=24.9%，α(J_R)=-0.04%/℃，α(H&lt；CJ&gt；)=-0.37%/℃，T_c=403℃。由透射电子显微镜观察发现，该带的平均颗粒尺寸约为23 nm。采用600℃退火5min的Pr_&lt；11&gt；Fe_&lt；68.5&gt；Co_8Ti_&lt；1.5&gt；B_&lt；10.5&gt；Si_&lt；0.5&gt；条带，制备了模压成型各向同性粘结磁体。该粘结磁体的磁性能为J_r=0.60T(6·0 kg)，H_t；Cj&gt；=1530kA/m，H_&lt；Cb&gt；=420kA/m，(BH)_lt；max&gt；=66.8kJ/m^3.Pr_&lt；11&gt；Fe_&lt；66.5&gt；Co_&lt；10&gt；Ti_&lt；1.5&gt；B_&lt；10.5&gt；Si_&lt；的不可逆损耗0.5GT；和Pr_&lt；11&gt；Fe_&lt；64.5&gt；Co_&lt；12&gt；Ti_&lt；1.5&gt；B_&lt；10.5&gt；Si_&lt；0.5&gt；粘结磁体在150℃时比MQP-O粘结磁体小。较少

项目成果

高保磁力Pr-Fe-Co-Ti-B-Si系急冷薄帯並びにそれらボンド磁石の磁気特性

高矫顽力Pr-Fe-Co-Ti-B-Si淬火薄带及其粘结磁体的磁性能

• 发表时间: 2006
• 期刊: 明治大学科学技術研究所紀要 Vol.44,No.4
• 作者: 山元 洋;門馬 隆起
• 通讯作者: 門馬 隆起

Pr-Fe-Co-V-W-Si-B系交換スプリング磁石の磁気特性

Pr-Fe-Co-V-W-Si-B 可交换弹簧磁铁的磁性能

• 发表时间: 2004
• 期刊: 電気学会論文誌A, Vol.124,No.10
• 作者: 山元 洋;中西 祟
• 通讯作者: 中西 祟

Magnetic Properties of Crystal Structure Observation of High-Coercivity Pr-Fe-Co-Ti-B-SI System Melt-Spun and Some Properties of Their Bonde Magnets

熔纺高矫顽力Pr-Fe-Co-Ti-B-SI体系的磁性能及其粘结磁体的一些性能

• 发表时间: 2006
• 期刊: Mem.Inst.Sci.Tec.Meiji Univ. Vol.44,No.4
• 作者: H.Yamamoto;R.Monma
• 通讯作者: R.Monma

Magnetic Properties of Pr-Fe-Co-V-W-Si-B System Exchange Spring Magnets

Pr-Fe-Co-V-W-Si-B系交换弹簧磁体的磁性能

• 发表时间: 2004
• 期刊: IEEJ Trans.FM Vol.124,No.10
• 作者: H.Yamamoto;T.Nakanishi
• 通讯作者: T.Nakanishi

Magnetic Properties of High-Coercivity Melt-Spun Pr-Fe-Co-Ti-B-Si System Ribbons and Their Bonded Magnets

高矫顽力熔纺Pr-Fe-Co-Ti-B-Si系带材及其粘结磁体的磁性能

• 发表时间: 2005
• 期刊: IEEE Transaction on Magnetics Vol.41,No.10
• 作者: H.Yamamoto;R.Monnma
• 通讯作者: R.Monnma