| La_（0.85）K_（0.15）MnO_3多晶纳米颗粒磁制冷材料的制备 |
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| 引用本文： | 李丽荣,赵娟,王贵.La_（0.85）K_（0.15）MnO_3多晶纳米颗粒磁制冷材料的制备[J].金属功能材料,2010,17(3):13-15. |
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| 作者姓名： | 李丽荣 赵娟 王贵 |
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| 作者单位： | 1. 内蒙古科技大学数理与生物工程学院,包头,014010;广东海洋大学工程学院,广州510000
2. 广东海洋大学工程学院,广州,510000 |
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| 摘 要： | 采用非晶态多核配合的方法在800℃制备出La0.85K0.15MnO3纳米颗粒,用XRD、HRTEM和PPMS等手段对纳米颗粒的微观结构和磁性能进行研究。XRD和ED分析表明,所有样品都具有单相钙钛矿结构;样品的M-T曲线研究结果表明,La0.85K0.15MnO3纳米颗粒的居里温度TC为242.65 K。
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| 关 键 词： | 居里温度 纳米颗粒 La0.85K0.15MnO3 |
Synthesis of La0.85K0.15MnO3 Polycrystalline Nanoparticles Magnetic Refrigerant |
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| LI Li-rong,ZHAO Juan,WANG Gui.Synthesis of La0.85K0.15MnO3 Polycrystalline Nanoparticles Magnetic Refrigerant[J].Metallic Functional Materials,2010,17(3):13-15. |
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| Authors: | LI Li-rong ZHAO Juan WANG Gui |
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| Affiliation: | 1.School of Materials and Engineering,Science and Technology University of Inner Mongolie,Baotou 014010,Inner Mongolia,China;2.Engineering College,Guangdong Ocean University,Guangzhou 510000,Guangdong,China) |
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| Abstract: | The nanosized particles of La0.85K0.15MnO3 perovskite-type oxides was sucessfully synthesized at relatively low calcinated temperature（800℃） for 10 h using amorphous heteronuclear complexing method.The microstructure of nanoparticles were studied by X-ray diffraction（XRD） and high resolution transmission electronmicroscopy（HRTEM） and the magnetic properties were investigated by physical property measurement system（PPMS）.The X-ray diffraction（XRD） and electron diffraction（ED） reveal that the resulting product is of pure single-phase rhombohedral structure.The Curie temperature（TC） of La0.85K0.15MnO3 polycrystalline nanoparticles was determined by M-T curves,and the Curie temperature TC is about 242.65 K. |
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| Keywords: | La0 85K0 15MnO3 |
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