Transparent ZnS Ceramics by Sintering of High Purity Monodisperse Nanopowders
Transparent ZnS Ceramics by Sintering of High Purity Monodisperse Nanopowders
复制标题
DOI：
10.1111/jace.12570
复制
发表时间：
2013-10
影响因子：
3.9
通讯作者：
Christophe Chlique;O. Merdrignac-Conanec;N. Hakmeh;Xianghua Zhang;J. Adam
中科院分区：
文献类型：
--
作者：
Christophe Chlique;O. Merdrignac-Conanec;N. Hakmeh;Xianghua Zhang;J. Adam
报道了一种利用热压技术制备透明硫化锌陶瓷的有效方法。结果表明，样品的透明性与原料的纯度和粒度分布有很大关系。在H_2S/N_2气流中于600°C下后处理2 h，得到了高纯、单分散的硫化锌陶瓷，其显微结构致密均匀，平均晶粒尺寸为~1μm，晶界光滑，在中、远红外区域具有约70%的良好透过率。本研究中描述的制备技术具有很高的重复性。
We report an efficient way of preparing transparent ZnS ceramics using the hot-pressing technique. It has been found that the transparency is highly dependent on the purity and the grain size distribution of the starting ZnS powders. Highly pure and monodisperse ZnS powders have been obtained by posttreatment of the precipitated powders in a H2S/N2 flow for 2 h at 600°C. The obtained ZnS ceramics show fully dense and homogeneous microstructure with average grain size of ~1 μm and smooth grain boundaries, leading to an excellent transmission of around 70% in the mid- and far- IR regions. The preparation technique described in this study is highly reproducible.