Fig. 1. Ancient porcelain samples excavated from Dongmendu Kiln

Fig. 2. Optical (a, d) and polarizing (b, c, e, f) microscope images of sample body and glaze in Dongmendu kiln
(a): Optical microstructures of the fracture surface of sample 1; (b): Polarizing microstructures of the fracture surface of sample 1; (c): Polarizing microscope image of glaze of sample 1 with sauce yellow glaze; (d): Optical microstructures of the fracture surface of sample 8; (e): Polarizing microstructures of the fracture surface of sample 8; (f): Polarizing microscope image of glaze of sample 8 with sauce black glaze

Fig. 3. X-ray diffraction about the porcelain body samples of Dongmendu kiln

Fig. 4. FTIR spectra of about the porcelain body samples of Dongmendu kiln

Fig. 5. Thermogravimetric analysis on the porcelain body samples of Dongmendu kiln

Table 1. The chemical composition of porcelain body of Dongmendu kiln (Wt%)

Table 2. The chemical composition of porcelain glaze of Dongmendu Kiln (Wt%)