| 富硼稀土硼化物NdB6的高温高压合成 |
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| 引用本文： | 赵旭东,林峰.富硼稀土硼化物NdB6的高温高压合成[J].高压物理学报,1996,10(3):170-175. |
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| 作者姓名： | 赵旭东 林峰 |
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| 作者单位： | 吉林大学稀土固体物理研究室，中国科学院国际材料物理中心，中国高等科学技术中心（世界实验室）凝聚态和辐射物理分中心，中国科学院长春物理研究所 |
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| 摘 要： | 提出了一种在高温高压极端条件下合成富硼稀土硼化物NdB6的新方法，即以稀土氧化物Nd2O3为钕源与单质硼反应的方法获得了稀土六硼化物NdB6。并对合成产物进行了粉末X射线衍射分析。结果表明在配比为Nd：B＝1：6时，压力为4.0 GPa、温度为1 600 ℃、反应时间为15 min的条件下，获得了单相性非常好的NdB6。高温高压合成NdB6方法具有反应条件易达到、合成时间短、反应产物单相性好等优点。其XRD结果表明该合成产物为立方结构，晶格常数为a＝0.417 nm。
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| 关 键 词： | 高温高压 稀土硼化物 |
| 收稿时间： | 1995-12-27; |
SYNTHESIS OF BORON RICH BORIDE NdB 6 UNDER HIGH PRESSURE AND HIGH TEMPERATURE |
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| Zhao Xudong a,Lin Feng a,Liu Xiaoyang a,Hou Weimin a,Liu Weina d,Su Wenhui a,b,c.SYNTHESIS OF BORON RICH BORIDE NdB 6 UNDER HIGH PRESSURE AND HIGH TEMPERATURE[J].Chinese Journal of High Pressure Physics,1996,10(3):170-175. |
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| Authors: | Zhao Xudong a Lin Feng a Liu Xiaoyang a Hou Weimin a Liu Weina d Su Wenhui a b c |
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| Institution: | 1. Group of Rare Earth Solid State Physics, Jilin University, Changchun 130023, China;2. Changchun Institute of Physics, Academia Sinica, Changchun 130021;3. International Center for Materials Physics, Academia Sinica, Shenyang 110015;4. Center for Condensed Matter and Radiation Physics, CCAST (World Laboratory), Beijing 100080, China |
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| Abstract: | A new route is reported to prepare boron-rich rare-earth boride NdB6 under extreme of high pressure and high temperature conditions, i.e. oxidizing amorphous elemental boron with rare-earth oxide Nd2O3. Products are analyzed by X-ray powder diffraction. Results show that the pure phase of NdB6 is obtained under the condition of Nd∶B=1∶6, 4.0 GPa, 1 600 ℃ and 15 min. The method to prepare NdB6 under high pressure and high temperature has many advantages such as easy acquiring in reaction conditions, short reaction time and pure phase of the product ect. The results of XRD indicate that the crystallized product in cubic symmetry has lattice constant a=0.417 nm. |
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| Keywords: | high pressure and high temperature rare earth boride |
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