Research Progress on Microwave Sintering of Ceramic Materials and Status of Industrial Application
In this research, the principle, equipment and technique of microwave sintering, and the application of microwave sintering technique on the preparation of ceramic powder, cemented carbide, cermets, functional ceramic materials and coatings are introduced, also it is added in the latest progress of new microwave sintering technique on the sol gel, self-propagating high temperature synthesis, hrdrothermal method, electrothermal process, coating dissolution, ceramic material drying and joining, etc. Microwave sintering possesses the advantages of rapid heating rate, homogeneous temperature distribution in sintered blanks, activated sintering, short sintering time, inhibiting grain growth, controlling microstructure and high efficiency energy saving, etc. The present status and existent problems in the industrialization of microwave sintering technique are discussed. It is pointed out that the absence of the characteristic data of sintered material and costly equipment are two main obstacles blocking the industrialization of microwave sintering technique. The viewpoints on solving these difficult problems are expounded, such as optimizing the design of microwave field, building the database of the dielectric properties of ceramic materials, developing microwave equipments combined wirn sintering technology, etc.
NETL
NSTL
万方数据
维普
