Preparation of Ceramics using Corrosion Reaction of Metals and Its Characteristics

Abstract

In this paper, we describe our proposed new ceramic preparation method: corrosion synthesis method. This method is classified as a type of liquid phase method and metal corrosion is used in the process. In corrosion engineering, the main focus is on making machines and structures last longer. The research has revealed the conditions that shorten the life of the material; in other words, corrosion ratio is increased. Corrosion synthesis method uses it in reverse, that is to say, ceramics are prepared by using spontaneous corrosion reactions. For example, when metallic magnesium was corroded in ethanol with aluminum chloride, magnesium spinel was obtained by calcination at 1473K. The particle sizes of the above magnesium spinel ranged from 0.7μm to 22μm, and the mode of the particle size distribution was 3.6μm. Through the preparation of magnesium spinel, we compared corrosion synthesis method with sol-gel method and solid-phase reaction method. And the characteristics of corrosion synthesis method was summarized.