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| 环境对MgB_2氧化过程中MgO晶须生长形状的影响 | |
| 引用本文： | 卢红霞,杨德林,孙宏魏,李国星,胡行.环境对MgB_2氧化过程中MgO晶须生长形状的影响[J].低温与超导,2003,31(3):24-26. |
| 作者姓名： | 卢红霞 杨德林 孙宏魏 李国星 胡行 |
| 作者单位： | 1. 郑州大学物理工程学院材料物理实验室,450052;郑州大学材料工程系,450002 2. 郑州大学物理工程学院材料物理实验室,450052 3. 郑州大学高温材料研究所,450052 |
| 基金项目： | 河南省自然科学基金，， |
| 摘 要： | 用扫描电镜研究了在 Mg B2 氧化过程中环境对 Mg O晶须生长形状的影响。仅有 Mg B2 时 ,在 80 0℃左右空气气氛中 ,可生长出纳米尺寸的 Mg O晶须。若把 Mg B2 添加到氧化铝陶瓷基体中 ,则生长成竹节状晶须。Mg O晶须生长形状的差别可能是由于氧浓度以及位错等因素造成的。 |
| 关 键 词： | MgB2 MgO 晶须形状 |
| 修稿时间： | 2003年3月10日 |
Influence of Environment on the Shape of MgO Whiskers Growing during the Oxidation Process of MgB2 |
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| Lu Hongxia ,Yang Delin ,Sun Hongwei ,Li Guoxing ,Hu Xing.Influence of Environment on the Shape of MgO Whiskers Growing during the Oxidation Process of MgB2[J].Cryogenics and Superconductivity,2003,31(3):24-26. | |
| Authors: | Lu Hongxia Yang Delin Sun Hongwei Li Guoxing Hu Xing |
| Institution: | Lu Hongxia 1,2,Yang Delin 1,Sun Hongwei 3,Li Guoxing 1,Hu Xing 1 |
| Abstract: | The influence of environment on the shape of MgO whiskers growing during the oxidation process of MgB 2 is studied by using scanning electron microscopy. If there are MgB 2 powders only, MgO whiskers with diameter in nanometer scale will appear at about 800℃ in air. If MgB 2 is added into Al 2O 3, then the MgO whiskers will have a shape of bamboo. This difference in shape of MgO whiskers may be caused by the difference in the concentration of oxygen and the existence of dislocation. |
| Keywords: | MgB 2 MgO Whiskers shape |
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