| Evaluating Acceleration Ability of Electrons of SiO_2 and ZnS in ZnS∶Er Electroluminescence |
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| 引用本文： | 叶金文,刘颖,李梦,高升吉,涂铭旌. Evaluating Acceleration Ability of Electrons of SiO_2 and ZnS in ZnS∶Er Electroluminescence[J]. 中国稀土学报(英文版), 2005, 23(5) |
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| 作者姓名： | 叶金文 刘颖 李梦 高升吉 涂铭旌 |
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| 作者单位： | Department of Metal Materials，Sichuan University，Chengdu 610065，China，Department of Metal Materials，Sichuan University，Chengdu 610065，China，Department of Metal Materials，Sichuan University，Chengdu 610065，China，Department of Metal Materials，Sichuan University，Chengdu 610065，China，Department of Metal Materials，Sichuan University，Chengdu 610065，China |
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| 基金项目： | ProjectsupportedbytheScienceandTechnologyFoundationofSichanProvince(05GG00902001) |
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| 摘 要： | SinceCoeyandSun[1]discoveredtheinterstitial compoundSm2Fe17Nx,ithasattractedmanyresearch ers′attention.Asakindofpermanentmagneticmate rial,Sm2Fe17Nxexhibitsfairlyhighsaturationmagneti zation(1.54T)[2],highanisotropyfield(14T)under roomtemperatureandhighC…
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Evolution of Sm2Fe17 Alloys during Hydrogenation-Disproportion Process |
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| Ye Jinwen,Liu Ying,Li Meng,Gao Shengji,Tu Mingjing. Evolution of Sm2Fe17 Alloys during Hydrogenation-Disproportion Process[J]. Journal of Rare Earths, 2005, 23(5) |
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| Authors: | Ye Jinwen Liu Ying Li Meng Gao Shengji Tu Mingjing |
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| Abstract: | The evolution of phase compositions, phase change and microstructure in Sm2Fe17 alloys during hydrogenation-disproportion process were systematically studied with XRD, SEM, EDX methods. Research indicates that HD process of Sm2Fe17 alloys is as follows: Sm2Fe17 alloy absorbs hydrogen first in the atmosphere of hydrogenation with a pressure of 0.1 MPa. Disproportionation begins at T≥500 ℃, then the alloys turn into lots of SmHx and α-Fe phases which are partly in microcrystal or amorphous structures. Along with the increase of temperature, the microcrystal and amorphous structures transformed into crystal structure and this transformation thoroughly completed at 750 ℃. The size of obtained crystal grain is about 20～100 nm. Based on the experimental data, a microstructural transformation model of Sm2Fe17 alloys during hydrogenation-disproportion process was made. |
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| Keywords: | metal materials HDDR hydrogenation nitride rare earths |
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