Sinter of kaolin
The sintering of kaolin refers to the properties of the solid powdered kaolinite body heated to its melting point (generally more than 1000 degrees C), and the material is spontaneously packed and densified. The state in which porosity decreases to a minimum and density reaches a maximum is called sintering state, and the corresponding temperature is called sintering temperature. When heating continues, the liquid phase in the sample increases continuously, and the specimen begins to deform. The temperature is called the transformation temperature.