| 掺杂MgO和La2O3对Al2O3陶瓷性能的影响 |
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| 引用本文： | 王文瀚,李晓云,丘泰.掺杂MgO和La2O3对Al2O3陶瓷性能的影响[J].电子元件与材料,2011,30(7):9-13. |
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| 作者姓名： | 王文瀚 李晓云 丘泰 |
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| 作者单位： | 南京工业大学 材料科学与工程学院,江苏南京,210009 |
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| 基金项目： | 国防科工委基金资助项目 |
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| 摘 要： | 以高纯硫酸铝氨分解的无定形Al2O3为原料，MgO、La2O3为烧结助剂，在N2气氛下热压烧结制备Al2O3陶瓷。研究了MgO和La2O3掺杂量对所制Al2O3陶瓷的相组成、显微结构、烧结性能、力学性能、热导率和介电性能的影响。结果表明：随着MgO或La2O3掺杂量的增加，Al2O3晶粒尺寸均逐渐减小而抗弯强度逐渐升高...
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| 关 键 词： | Al2O3 热压烧结 显微结构 抗弯强度 热导率 介电性能 |
Effect of MgO and La_2O_3 doping on properties of Al_2O_3 ceramics |
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| WANG Wenhan,LI Xiaoyun,QIU Tai.Effect of MgO and La_2O_3 doping on properties of Al_2O_3 ceramics[J].Electronic Components & Materials,2011,30(7):9-13. |
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| Authors: | WANG Wenhan LI Xiaoyun QIU Tai |
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| Affiliation: | WANG Wenhan,LI Xiaoyun,QIU Tai(College of Material Science and Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | Al2O3 ceramics were prepared by hot-pressing sintering in N2 atmosphere,with amorphous Al2O3 decomposed from high-purity aluminum ammonium sulfate as raw material and MgO,La2O3 as additives.The effects of MgO and La2O3 additives content on the phase formation,microstructure,sintering properties,mechanical properties,thermal conductivity and dielectric properties of the Al2O3 ceramics were investigated.The results show that the Al2O3 ceramics exhibite fine-grained microstructure and consequently excellent be... |
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| Keywords: | Al2O3 hot-pressed sintering microstructure bending strength thermal conductivity dielectric properties |
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