不同Al2O3含量ZrO2(3Y)/Al2O3纳米复合粉体的制备与表征
Preparation and Characterization of ZrO2 (3Y)/Al2O3 Nano-sized Powders with Various Al2O3 Contents
查看参考文献15篇
文摘
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采用化学共沉淀法制备了Al2O3数量分数为0%~30%的ZrO2(3Y)/Al2O3纳米复合粉体,研究了Al2O3含量和煅烧温度对粉体相结构、晶粒尺寸和晶格畸变的影响。结果表明:800℃×2h煅烧的复合粉体只出现t-ZrO2相,不出现Al2O3的任何晶相;Al2O3的添加抑制了ZrO2(3Y)晶粒的增长和四方相向单斜相的结构相变,使相变温度显著提高,晶格畸变增大。 |
其他语种文摘
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ZrO2 (3Y) nano-sized powders containing 0% - 30mass% Al2O3 were prepared by coprecipitation method. The effects of Al2O3 content and calcining temperature on phase structure, grain size and lattice distortion were studied. Only t-ZrO2 phase was found when powders were calcined at 800 ℃ for 2 h. The dopants of Al2O3 greatly inhibited the increase of crystallite size and the phase transformation from tetragonal to monoclinic, also made the phase transformation temperature and crystal lattice distortion increase. |
来源
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机械工程材料
,2006,30(7):75-78 【核心库】
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关键词
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ZrO2(3Y)/Al2O3纳米复合粉体
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相变
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晶格畸变
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地址
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1.
中国科学院兰州化学物理研究所, 固体润滑国家重点实验室, 甘肃, 兰州, 730000
2.
兰州理工大学材料科学与工程学院, 甘肃, 兰州, 730050
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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1000-3738 |
学科
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冶金工业 |
基金
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国家自然科学基金创新研究群体项目
;
国家自然科学基金资助项目
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文献收藏号
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CSCD:2477993
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