Processing of high-density submicrometer Al2O3 for new applications

被引:188
作者
Krell, A [1 ]
Blank, P [1 ]
Ma, HW [1 ]
Hutzler, T [1 ]
Nebelung, M [1 ]
机构
[1] Fraunhofer Inst Ceram Technol & Sintered Mat, IKTS, D-01277 Dresden, Germany
关键词
D O I
10.1111/j.1151-2916.2003.tb03339.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 [材料科学与工程]; 080502 [材料学];
摘要
Sintered corundum components with submicrometer grain sizes exhibit properties which enable numerous new applications. Wet powder processing is developed to associate minimum grain sizes at highest densities with the lowest population of macrodefects. A closest ratio of powder particle size and sintered grain size is important for obtaining most fine-grained microstructures. This target was approached best by using powders with particle sizes in the range of 100-200 nm rather than with smaller nanoparticles.
引用
收藏
页码:546 / 553
页数:8
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