Synthesis of size-controlled and dispersible Sm2Fe17N3 magnetic particles by reduction diffusion process using molten salt* - 文章详情页

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摘要：

The　synthesis　of　size-controlled　Sm2Fe17　magnetic　particles　is　a　prerequisite　for　the　fabrication　of　highperformance　Sm2Fe17N3　permanent　magnetic　materials.　Here,　Sm2Fe17　was　synthesized　using　a　costeffective　reduction-diffusion　method.　The　calcium　chloride　molten　salt　was　introduced　to　control　the　particle　size　and　achieve　a　single　phase　of　Sm2Fe17.　The　effects　of　reduction-diffusion　reaction　temperature　and　the　amount　of　added　calcium　chloride　on　the　phase　constitution　and　microstructure　of　the　final　product　of　reduction-diffusion　were　systematically　investigated.　Adding　an　appropriate　amount　of　calcium　chloride　can　effectively　inhibit　the　overgrowth　and　sintering　of　the　reduced　particles.　By　employing　the　strategy　of　adding　20　wt%　of　calcium　chlorides　into　the　green　compacts,　we　were　able　to　successfully　synthesize　uniform　Sm2Fe17　particles　that　are　well-dispersed,　with　an　average　size　of　2.2　mm.　Furthermore,　by　combining　the　optimal　reduction-diffusion　conditions　and　the　nitriding　process,　the　hard　magnetic　Sm2Fe17N3　material　was　successfully　obtained.　This　study　could　be　useful　for　the　development　of　high-performance　Sm2Fe17N3　magnetic　materials　utilizing　reduction-diffusion　technology.　(c)　2023　Chinese　Society　of　Rare　Earths.　Published　by　Elsevier　B.V.　All　rights　are　reserved,　including　those　for　text　and　data　mining,　AI　training,　and　similar　technologies.

关键词：

Molten salt Permanent magnets Rare earths Reduction-diffusion

作者机构：

[ 1 ] [Xi, Junhua]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[ 2 ] [Yang, Zhi]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[ 3 ] [Haseeb, Muhammad]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[ 4 ] [Chen, Yuanyuan]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[ 5 ] [Nie, Xiaofeng]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[ 6 ] [Cong, Liying]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[ 7 ] [Wu, Qiong]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[ 8 ] [Fu, Enfeng]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[ 9 ] [Zhang, Hongguo]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[ 10 ] [Liu, Weiqiang]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[ 11 ] [Yue, Ming]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China

通讯作者信息：

[Yue, Ming]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China;;

电子邮件地址：

yueming@bjut.edu.cn

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