Synthesis of Y2O3-MgO nanopowder and infrared transmission of the sintered nanocomposite

被引：14

作者：

Jiang, DongTao ^{[1
]}

Mukherjee, Amiya K. ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

来源：

NANOPHOTONIC MATERIALS V | 2008年 / 7030卷

关键词：

ceramic; nanocomposite; sol-gel; powder synthesis; infrared transmittance; spark plasma sintering; annealing;

D O I：

10.1117/12.795472

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A sol-gel method was successfully used to synthesize Y2O3-MgO composite powder with a grain size below 30nm. Results from X-ray diffraction revealed how the microstructure evolved with increasing heat treating temperature. Taking advantage of high heating rate, spark plasma sintering (SPS) technique was used to sinter the nanopowder, resulting in a fully dense nanocomposite with grain size below 100nm. The transmittance can be enhanced by optimizing sintering parameters as well as appropriate post-sinter annealing. The fully consolidated nanocomposite exhibits an optical transmittance between 75% and 84% over infrared wavelength range between 3 mu m and 6 mu m. This kind of nanocomposite has a great potential to be used as infrared transparent material.

引用

页数：16

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