First Time Wonder! The Process of 330 Pottery being Completed at 1230 Degrees in a Huge Ceramic Kiln

[Episode 5] Process Master's Signature - A first-time wonder - The process of 330 Pottery being perfectly completed in a Huge ceramic kiln over 6 days by a 1230-degree fire. Master Korean ceramics craftsman Park Byung-Ho The ceramics firing in the content video is 'oxidation firing', which blocks oxygen and fires the ceramics. The reason why ceramics are fired at high temperatures in a kiln - The ceramics are completely chemically and physically changed. They become harder. This is the final stage of ceramics production. The ordinary 'soil' on the ground changes into a material with completely different characteristics. Ceramics are made in the following stages: shaping (shaping) - drying - first firing (first firing) - carving or coloring (relief, intaglio) - glaze application - second firing (second firing). The second firing, the final stage of pottery production, is the most difficult and requires a high level of concentration, experience, and time in the pottery making process. It is fired at a high temperature of 1250 degrees Celsius or higher for about 12 to 16 hours. Raising the temperature from 1 degree Celsius to 100 degrees Celsius is not difficult. However, raising the temperature by 10 degrees each time from 100 degrees Celsius to 1200 degrees Celsius requires a lot of effort and patience. During the firing of pottery, the following physical and chemical changes occur at each temperature. A. Up to 400 degrees Celsius, the particles of the pottery clay and glaze become adhesive to each other. At this time, the pottery begins to shrink slightly. Also, the strength of the pottery itself begins to increase. B. At 600 degrees Celsius, the atomic association of the pottery clay and glaze ends and it is an inactive stage. Organic matter (vegetable, animal) in the porcelain clay and glaze is completely removed, and from this point on, pure chemical changes occur. C. Up to 1000 degrees Celsius, a new atomic arrangement occurs in the porcelain, and this rearrangement increases the strength again. D. The last 1000 to 1300 degrees Celsius is the most important stage. This is the key reason for firing porcelain at a high temperature of 1200 degrees Celsius. The atomic arrangement of the porcelain is completely rearranged. As a result, all the atoms in the porcelain are crystallized. The carbon in the porcelain is completely decomposed, chemical shrinkage is completed, and the entire porcelain shrinks by about 10% to 20%. This is an important time when oxidation firing (oxidation firing) and reduction firing (reduction firing) are determined depending on the amount of oxygen supplied. The porcelain firing in the video is oxidation firing. The porcelain is fired while completely blocking oxygen. Reduction firing continuously supplies oxygen so that the porcelain shows the original color of the clay and glaze. Oxidation firing blocks oxygen from the outside, so that all the oxygen inside the porcelain is taken away by the fire, and the porcelain shows a blue or irregular light. This means that 2nd iron oxide (FeO₂) is reduced to iron oxide (FeO). When the temperature exceeds 1200 degrees Celsius, the inside of the kiln turns into a completely shining white light bulb, and the entire thing glows white. It really shows a beautiful light. Also, the fire does not glow blue, but white. The clay of the porcelain changes its physical and chemical properties to perfect porcelain. In a kiln with a high temperature of 1200 degrees Celsius or higher, the original clay and glaze of the porcelain are completely fused. With oxidation firing, the porcelain forever retains the deep and profound color of celadon. Now, the complete completion of the pottery is achieved. Master Contact - [email protected] Address - 69-25, Wonjeok-ro, Sindun-myeon, Icheon-si, Gyeonggi-do, Korea. This content does not contain paid promotions or paid advertisements. Requests for coverage and interviews, tips - [email protected] Copyrightⓒ 2024 #ProcessMasterSignature All Rights Reserved.#potterymaking #potteryclay #koreanpottery [Episode 5] - Process Master Signature - A wonder you've never seen before - The process of 330 pieces of pottery being perfectly completed by fire in a giant pottery kiln for 6 days. Master pottery artisans of Korea