Scientific and simulation study of the manufacturing technology of the ancient Chinese rare Hare's Fur glazed bowl

The red Hare's Fur glazed bowls of the Jin and Yuan periods(1115-1368 A.D.) were analysed by optical microscopy, EDXRF, XRD, SEM-EDS, Micro-Raman spectroscopy and thermal expansion instrument. We also conduct simulation experiments at different temperatures and atmospheres. The results revealed that the Fe2O3 content of the Hare's Fur glaze was about 5%. e-Fe2O3 was found in the crystals on the glaze surface. The e-Fe2O3 was all found on the rim of the bowl and it can exceed 10 mu m in size. They were fired at about 1250 degrees C in a reducing atmosphere. The simulation experiments showed that e-Fe2O3 was formed in the cooling stage and needed to be held for a period of time at about 1160-1190 degrees C. The presence of mullite will promote the formation of e-Fe2O3. This is because the Al-substitution effect changes the crystal structure of e-Fe2O3 and makes it more stable.

Automated summary

The red Hare's Fur glazed bowls from the Jin and Yuan periods were analyzed using various methods. The findings revealed the presence of e-Fe2O3 on the rim of the bowls, which required a specific temperature for formation. Additionally, the study observed that the presence of mullite promoted the formation of e-Fe2O3.