In the firing of ceramics, the kiln is fired slowly so that the temperature inside the kiln is uniform from the start of firing until it reaches 800 to 900 degrees Celsius. The purpose of this process is to prevent the dissipation of moisture adhering to or bonding with the clay or raw materials, the decomposition of carbon compounds in the raw materials, and the breakage of the vessel due to abnormal expansion of quartz, etc. In general, the kiln is fired in the following manner The process is generally carried out by heating the material gradually with oxidizing solution. (Ceramic Glaze)
