Method for preparing high-light-transmittance AlON ceramic by adding nano Y2O3 through rapid pressureless sintering: Fid-Bau Portal

Method for preparing high-light-transmittance AlON ceramic by adding nano Y2O3 through rapid pressureless sintering

SHAN YINGCHUN / GUO HAORAN / XU JIUJUN

The invention relates to a method for preparing high-light-transmittance AlON ceramic by adding nano Y2O3 through rapid pressureless sintering, and belongs to the field of preparation of transparent ceramic materials. The invention relates to a method for preparing high-light-transmittance AlON ceramic by adding nano Y2O3 and performing rapid pressureless sintering, which comprises the following steps of: adding nano Y2O3 powder with high specific surface area into pure-phase AlON powder as a sintering aid, mixing raw materials by a ball milling method, and preparing the mixed powder into the high-light-transmittance AlON transparent ceramic at a broadband by a pressureless sintering method, the nano Y2O3 powder with the high specific surface area is obtained by calcining yttrium acetate powder subjected to spheroidal graphite in air. According to the method, the raw materials are uniformly mixed only by adopting a universal ball milling method, a pressureless sintering technology is adopted for sintering, equipment is easy to obtain, the technology is easy to implement, the heat preservation time in the sintering process is short, the energy-saving effect is good, the efficiency is high, the preparation cost is low, and industrialization is easy to implement.

本发明涉及一种添加纳米Y2O3快速无压烧结制备高透光性AlON陶瓷的方法，属于透明陶瓷材料制备领域。一种添加纳米Y2O3快速无压烧结制备高透光性AlON陶瓷的方法，将高比表面积的纳米Y2O3粉体作为烧结助剂添加至纯相的AlON粉体中，通过球磨方法混合原料，混合后的粉体采用无压烧结方法制备出在宽波段具有高透光性的AlON透明陶瓷，其中，所述高比表面积的纳米Y2O3粉体通过于空气中煅烧球墨后的醋酸钇粉末获得。该方法仅采用通用的球磨方法实现原料均匀混合，烧结采用无压烧结技术，设备易得、技术易实现，烧结过程保温时间短，节能效果好、效率高、制备成本低，易实现产业化。

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