Method for preparing ceramic powder through liquid-state CO2

The invention provides a method for preparing ceramic powder through liquid-state CO2. The method comprises: a) introducing liquid-state CO2 into a blasting cylinder to make a ceramic body be immersed in the liquid-state CO2 to achieve a saturated state; b) placing the blasting cylinder into a soil pit, filling soil, and compacting; and c) detonating the blasting cylinder. According to the present invention, the particle size distribution data of the ceramic powder obtained by using the method is close to the particle size distribution data of the high-performance ceramic; and the alkaline solution adding in the grinding process of the conventional method is eliminated, the process is simple, the blasting cylinder can be reused, and the price of the liquid-state CO2 is cheap, such that the further optimization and promotion can be performed on the basis of the method so as to expand the proportion of the fine particle size particles. 本发明提供了种液态CO制备陶瓷粉体的方法，包括如下步骤：a)向所述爆破筒内充入液态CO，使所述陶瓷体浸入液态CO达到饱和；b)将所述爆破筒放于土坑中，并