Modified hot pressing method for fabrication of ceramic matrix composites

This paper presents a Novel method for fabricating of thin ceramic plates. Although achieving nearly full density, the commercial hot pressing machine have extremely high price and upkeep cost. The device presented in this paper have lower cost and for hot pressing, needs just an ordinary electrical furnace. Despite all this benefits, it can just form thin ceramic plates. In this paper, initially a brief description about ceramic matrix composites (CMCs) is presented and the effect of formed components and forming methods on its properties is discussed. Then the powder forming methods with advantages and disadvantages is presented. In the next step the device (expansional hot pressing device) and its working method is introduced. And finally this device is used for forming of a special ceramic matrix composite and the mechanical and microscopic properties of the formed part is examined and the method proves to be useful for forming CMC