Progress in the Development of Nitrogen and Alumina Transparent Ceramics

Jan 12, 2023

Under the National Fund Committee of major research projects, the Chinese Academy of Sciences "Hundred Talents Program" project funding. Recently, Chinese Academy of Sciences, Fujian Institute of research on the structure of the Chinese Academy of Sciences Group of Optoelectronic Materials Chemistry and physics laboratory you Fu Zhou subject by domestic raw materials, optimization of direct nitridation and low cost synthesized alon activity ultrafine powder with high purity, high fever node, by ball milling, molding, sintering and other processes used to bake the alon ceramic discs (53 mm in diameter), in a straight line of 400 nm and 1100 nm transmittance amounted to 77.1% and 80.6%. The above work has been published in the ceramic professional journals, and applied for Chinese invention patents.

Aluminum oxynitride (alon transparent ceramics with visible and infrared through the advantages of high rate, excellent mechanical strength, thermal shock resistance and good, is the preferred material high temperature window, Infrared Dome, and single crystal materials (such as sapphire) compared to alon transparent ceramics production cost is low, easy to produce preparation of large size dimorphism devices, high quality of AlON transparent ceramics preparation is increasingly important.

The results provide a basis for the practical application of AlON transparent ceramics and engineering.