Crystallization, Transport and Magnetic Properties of the Amorphous (Fe_(1-x)Mn_x)_(75)P_(15)C_(10) Alloys

Md. Kamruzzaman; Md. Abu Sayem Karal; Dilip Kumar Saha

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Crystallization, Transport and Magnetic Properties of the Amorphous (Fe_(1-x)Mn_x)_(75)P_(15)C_(10) Alloys

机译：非晶态（Fe_（1-x）Mn_x）_（75）P_（15）C_（10）合金的结晶、输运和磁性能

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The amorphous (Fe_(1-x)Mn_x)_(75)P_(15)C_(10) (0 ≤ x ≤ 0.30) alloys were prepared by the standard melt spinning technique and investigated their crystallization, thermal, transport and magnetic properties. Crystallization was observed from 400°C to 650°C with an interval 50°C within 30 minutes annealing time by XRD. The as-cast samples were amorphous in nature. Annealing 400°C to 450°C samples showed the mixed bcc Fe and amorphous structures. The lattice parameter "a" was varied from 2.855 to 2.859 A but above 450°C, samples contained hexagonal, FeP and FeC structures. The lattice parameters "a" and "c" were varied from (5.016 - 5.036) A and (13.575 - 13.820) A, respectively. Average crystallite size was found to vary from 8 to 48 nm. Crystallization temperature and weight change were observed by differential thermal analysis and thermogravirnetric analysis, respectively. Crystallization temperature was increased with increasing Mn content. Resistivity was increased above and bellows the Curie temperature. Real permeability remained almost constant upto around 10~6 Hz for of all samples after that it was decreased with increasing frequency and it was also decreased with Mn, whereas imaginary permeability was increased sharply above frequency 10~7 Hz. The value of saturation magnetization was found to decrease with increment Mn.

机译：采用标准熔融纺丝技术制备了非晶态（Fe_（1-x）Mn_x）_（75）P_（15）C_（10）（0 ≤ x ≤ 0.30）合金，并研究了其结晶、热、输运和磁性能。在400°C至650°C范围内，在30分钟的退火时间内观察到结晶，间隔为50°C，退火时间为30分钟。铸件样品本质上是无定形的。退火 400°C 至 450°C 样品显示 bcc Fe 和非晶态混合结构。晶格参数“a”在2.855至2.859 A之间变化，但在450°C以上，样品包含六方、FeP和FeC结构。晶格参数“a”和“c”分别在（5.016 - 5.036） A和（13.575 - 13.820） A之间变化。发现平均微晶尺寸从 8 到 48 nm 不等。分别通过差热分析和热灼分析观察结晶温度和重量变化。结晶温度随着Mn含量的增加而升高。电阻率高于居里温度并低于居里温度。在10~6 Hz左右，实际磁导率随频率的增加而降低，随着Mn的增加而降低，而在频率10~7 Hz以上，虚磁导率急剧增加。饱和磁化强度值随Mn的增加而减小。

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来源
《Journal of crystallization process and technology》 |2012年第3期|105-110|共6页
作者
Md. Kamruzzaman; Md. Abu Sayem Karal; Dilip Kumar Saha;
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作者单位

Department of Physics, Begum Rokeya University, Rangpur, Bangladesh;

Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh;

Materials Science Division, Atomic Energy Center, Dhaka, Bangladesh.;

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正文语种英语
中图分类物理化学（理论化学）、化学物理学;
关键词
Metallic Glass; Melt Spinning Technique; Crystallization; DTA; VSM;

机译：金属玻璃;熔融纺丝技术;结晶;DTA;VSM的;

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Crystallization, Transport and Magnetic Properties of the Amorphous (Fe_(1-x)Mn_x)_(75)P_(15)C_(10) Alloys

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