CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to and benefits of Chinese Patent Application Nos. 201910696758.6, 201910696756.7 and 201910699539.3, filed on Jul. 30, 2019. The entire contents of the aforementioned applications are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to a field of material processing, and particular to a method for preparing a ceramic material and a ceramic material prepared by the method.

BACKGROUND

In the field of composite material processing, a ceramic material is normally prepared by existing methods such as a reactive calcining method, in which raw materials are mixed and calcined to obtain the ceramic material. However, in the existing method, a complex reaction happens to solid phase components, resulting in unexpected second phases. Meanwhile, during the reaction process, the raw materials are heated to cause a volume expansion, resulting in pores and defects in the prepared material, thus affecting performances, such as thermal conductivity, ionic conductivity and optical property, of the ceramic material.

Therefore, there is still a need for providing a method for preparing a ceramic material with good thermal conductivity, ionic conductivity or optical property.

SUMMARY

The present disclosure seeks to solve at least one of the problems that exist in the related art to at least some extent.

Accordingly, in an aspect, the present disclosure provides in embodiments a method for preparing a ceramic material including a compound of a formula of A2BxOy, where A is at least one of Sc, Y, La, Nd, Eu, Gd, Dy, Er, Yb and Lu, B is at least one of Ti, Zr, Ce and Hf, 2≤x≤10, 7≤y≤20, and 0≤y/x≤3.5. The method includes: mixing a first oxide of AOmand a second oxide of BOnto obtain a mixture, ball-milling the mixture until a particle size of the mixture is not greater than 1 μm with a medium selected from a group consisting of ethanol, acetone, deionized water and a combination thereof, to obtain a powder, drying the powder at a temperature in a range of 60 to 80° C., and sintering the powder with a laser irradiation having a laser wavelength of 980 nm, an irradiation power ranging from 50 to 1500 W, a spot diameter ranging from 10 to 15 mm and an irradiation period of 3 s to 8 min to obtain the ceramic material.

In another aspect, the present disclosure provides in embodiments a ceramic material, including a compound of a formula of A2BxOy, where A is at least one of Sc, Y, La, Nd, Eu, Gd, Dy, Er, Yb and Lu, B is at least one of Ti, Zr, Ce and Hf, 2≤x≤10, 7≤y≤20, and 0≤y/x≤3.5, prepared by the method as described above.

