| VO2粉末的制备及其相变性能研究 |
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| 引用本文： | 郭宁,徐彩玲,邱家稳,苏中兴.VO2粉末的制备及其相变性能研究[J].钢铁钒钛,2004,25(3):26-29. |
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| 作者姓名： | 郭宁 徐彩玲 邱家稳 苏中兴 |
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| 作者单位： | 兰州物理研究所,甘肃,兰州730000;兰州大学化工学院,甘肃,兰州,730000 |
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| 摘 要： | 介绍了一种新颖的、简单易行的二氧化钒粉末制备方法，以VOS04为原料，水解后获得VO(OH)2沉淀，将沉淀清洗、干燥后，对其进行真空热处理，即获得VO2粉末。该方法工艺控制简单，稳定性好，容易掌握。通过对试样的XRD、XPS分析表明，试样为较纯的VO2粉末。试样的相变电、光开关性能测试表明，相变前后试样的电阻值变化了近两个数量级，中红外光学透过率变化了15％。
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| 关 键 词： | VO2 粉末 制备 相变性能 |
| 文章编号： | 1004-7638(2004)03-0026-04 |
| 修稿时间： | 2004年5月9日 |
PREPARATION OF VO2 POWDER AND ITS PHASE TRANSITION CHARACTERS |
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| GUO Ning,XU Cai-ling,QIU Jia-wen,SU Zhong-xing.PREPARATION OF VO2 POWDER AND ITS PHASE TRANSITION CHARACTERS[J].Iron Steel Vanadium Titanium,2004,25(3):26-29. |
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| Authors: | GUO Ning XU Cai-ling QIU Jia-wen SU Zhong-xing |
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| Affiliation: | GUO Ning~1,XU Cai-ling~2,QIU Jia-wen~1,SU Zhong-xing~2 |
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| Abstract: | VO_2 powders were prepared by a new and simple method, which used VOSO_4 as raw material to form VO(OH)_2 sediment through hydrolysis process, then clean and dry the VO(OH)_2 sediment, VO_2 powders is produced by vacuum annealing process. XRD and XPS testing to the synthesized product show the VO_2 content in the samples approach 100%. The electrical and optical switching properties were tested, and the results show the resistance changed near two orders of magnitude and mid-IR transmissivity changed 15% because of the phase transition. |
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| Keywords: | VO_2 powder preparation phase transition properties |
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