| MnP_(1-x)M_x系列合金的磁热效应 |
| |
| 引用本文： | 门德,松林,伊博乐,刘璟芳,伊日勒图,特古斯. MnP_(1-x)M_x系列合金的磁热效应[J]. 稀有金属, 2010, 34(1). DOI: 10.3969/j.issn.0258-7076.2010.01.027 |
| |
| 作者姓名： | 门德 松林 伊博乐 刘璟芳 伊日勒图 特古斯 |
| |
| 作者单位： | 内蒙古师范大学内蒙古自治区功能材料物理与化学重点实验室,内蒙古,呼和浩特,010022 |
| |
| 基金项目： | 国家自然科学基金资助项目，内蒙古自治区自然科学基金重大项目，内蒙古师范大学研究生创新基金项目 |
| |
| 摘 要： | 研究了1∶1型MnP基系列合金MnP1-xMx(M=Si,Sb,Ge,Zn,Sn)(x=0,0.1)的结构及其磁热效应。室温X射线衍射表明该系列合金的主相结构均为正交MnP结构,空间群为Pnma。在用Ge,Sb,Zn,Sn作为替代元素的合金中存在少量第二相Mn5.64P3。磁性测量表明该系列合金MnP1-xMx(M=Si,Sb,Ge,Zn,Sn)(x=0,0.1)的存在由铁磁-顺磁的二级相变。其居里温度Tc分别为286,295,294,295,295K。通过磁化曲线计算了MnP1-xMx(M=Si,Sb,Ge,Zn,Sn)(x=0,0.1)合金的最大等温磁熵变-ΔSm,均在0.7～1.3J.kg-.1K-1之间。
|
| 关 键 词： | 合金 磁制冷 磁热效应 磁熵变 |
Magnetocaloric Effect of MnP_(1-x)M_x Alloys |
| |
| Men De,Song Lin,Yi Bole,Liu Jingfang,Yiri Yoltu,Tegus O. Magnetocaloric Effect of MnP_(1-x)M_x Alloys[J]. Chinese Journal of Rare Metals, 2010, 34(1). DOI: 10.3969/j.issn.0258-7076.2010.01.027 |
| |
| Authors: | Men De Song Lin Yi Bole Liu Jingfang Yiri Yoltu Tegus O |
| |
| Affiliation: | Men De,Song Lin,Yi Bole,Liu Jingfang,Yiri Yoltu,Tegus O (Inner Mongolian Key Laboratory for Physics , Chemistry of Functional Materials,Inner Mongolia Normal University,Huhhot 010022,China) |
| |
| Abstract: | The crystal structure and magnetocaloric effect of MnP based 1:1 type MnP_(1-x)M_x(M=Si,Sb,Ge,Zn,Sn)(x=0,0.1)alloys was studied.X-ray diffraction showed that the crystal structure was orthorhombic MnP-type structure(pnma).There was mirror amound of secondary phase Mn_(5.64)P_3 when substituted by Ge,Sb,Co,Zn,Sn.Magnetic measurements showed that ferromagnetic-paramagnetic second ordertransition happened in MnP_(1-x)M_x(M=Si,Sb,Ge,Zn,Sn)(x=0,0.1)alloys.The Curie temperature of MnP_(1-x)M_x(x=0,0.1)was 286,295,294,295,295 K for Si,Sb,Ge,Zn,Sn,respectively.Magnetic entropy change-△S_m of MnP_(1-x)M_x(M=Si,Sb,Ge,Zn,Sn)(x=0,0.1)alloys was cMculated by magnetization curves,which ranged from 0.7 to 1.3J·Kg_(-1).K_(-1). |
| |
| Keywords: | alloy magnetic refrigeration magnetocaloric effect nmgnetic entropy change |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
