Preparation method and process of gadolinium gallium aluminum garnet-based ceramic nanopowders

Abstract

Gadolinium gallium aluminum garnet has a unique cubic structure, and high optical yield, high density and fast decay rate, it is because of the above advantages has become one of the most promising scintillation materials, is widely used in a variety of industries. The main methods of oxide transparent ceramic powder preparation are solid-phase reaction synthesis, alcohol salt hydrolysis, sol–gel method, chemical co-precipitation method, etc. Solid-phase reaction synthesis requires high reaction temperature and long reaction time, and it is difficult to achieve homogeneous chemical composition by ball-mill mixing, therefore, it is difficult to prepare homogeneous and high sintering activity powder by solid-phase reaction. Alcohol salt hydrolysis method can prepare high purity powder, but it is generally rarely used because the raw materials are expensive and difficult to obtain. Co-precipitation method can achieve the molecular level of mixing, the preparation of powder process is simple, while the calcination temperature of powder synthesis can be reduced to prepare excellent performance of the powder. Therefore, in order to obtain nanopowders with uniform particle size, good dispersion, regular and nearly spherical shape, and suitable for the preparation of transparent ceramics. In this paper, we studied the preparation method and process of gadolinium gallium aluminum garnet ceramic nanopowders, and further analyzed the influencing factors of synthesizing gadolinium gallium aluminum garnet ceramic nanopowders, in order to provide some reference for the related research of gadolinium gallium aluminum garnet ceramic nanopowders.