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学科主题: Engineering (provided by Thomson Reuters)
题名: 微波水热合成ZrO2-8%Y2O3纳米粉体
其他题名: microwave-hydrothermal synthesis of zro2-8%y2o3 nano-powders
作者: 孙永欣; 赵青; 刘力; 常爱民; 文彬; 杨忠波; 陈志慧
关键词: yttria stabilized cubic zirconia ; nano ; microwave-hydrothermal method
刊名: Journal of the Chinese Silicate Society
发表日期: 2005
DOI: 10.14062/j.issn.0454-5648.2005.10.015
卷: 33, 期:10, 页:1255-1258
资助者: 中国科学院新疆理化技术研究所创新项目;“西部之光”资助项目
摘要: 以Zr(OH)4和Y(OH)3的共沉淀为前驱体,在碱性介质中用微波水热法合成摩尔分数为8%的氧化钇稳定氧化锆(yttria stabilized cubic zirconia,YSZ)纳米粉体。通过X射线粉末衍射仪、透射电镜和等离子发射光谱等表征粉体的性能。研究了微波水热法的反应温度、时间和前驱物浓度 对反应产物形貌、粒度等的影响。获得了制备具有纳米立方相结构的YSZ粉体的最佳工艺参数:粉体粒度为5~10nm,产物纯度为99%。结果表明:温度为 200℃时,产物粒径较小且均匀。微波水热制备YSZ的最佳反应时间为20~40min。前驱物中Zr^4+的最佳浓度为0.2mol/l。增大碱性介质 KOH的浓度对产物的晶型和粒度影响不大。
英文摘要: Cubic phase ZrO2-8% (in mole)Y2O3, nano-powders were prepared in basic media by the microwave-hydrothermal method, with Zr(OH)4 and Y(OH)3 co-precipitated from ZrO(NO3)2·2H2O and Y(NO3)3·6H2O solutions as the precursors. The resultant precipitates were characterized by X-ray diffraction, transmission electron microscopy and inductively coupled plasma-optima emission spectrometry. Influents of solution content, temperature and time on the crystalline type and morphology of yttrium stabilized cubic zirconia were studied. Well dispersed and narrowly distributed ZrO2 -8%Y2O3, nanopowders with particle sizes of 5-10 nm were obtained under the given process conditions. The best conditions for the microwave-hydrothermal method are as follows: reaction time of 20-40 min, precursor content of 0.2 mol/l, temperature of 194-200℃ , and KOH content of 0.4 mol/l . The product purity is 99% in mass.
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/2215
Appears in Collections:材料物理与化学研究室_期刊论文

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作者单位: 中国科学院新疆理化技术研究所;中国科学院研究生院; 兰州化学物理研究所

Recommended Citation:
孙永欣,赵青,刘力,等. 微波水热合成ZrO2-8%Y2O3纳米粉体[J]. Journal of the Chinese Silicate Society,2005,33(10):1255-1258.
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