LI Mei(1995-), female, Master candidate. E-mail: limei@student.sic.ac.cn
Based on the study of ancient black glazed porcelains, high-fired glazes of SiO2-Al2O3-K2O-MgO-CaO-Fe2O3 system were designed and prepared. Different glaze decoration effects were achieved by changing the firing schedules to modify the crystallization behavior and microstructure of the glazes. The influence of thermal history on the crystal attribute and morphology, glaze appearance and coloring mechanism was investigated by using optical microscopy, field emission scanning electron microscopy, electron backscattered diffraction, X-ray diffraction and Raman spectroscopy, respectively. ε-Fe2O3 crystalline layer was prepared in a slight oxidation atmosphere at about 1 000-1 050 ℃. The results show that α-Fe2O3 crystals precipitated on the glaze surface have a good orientation and a variety of morphologies, which are related to the crystallization position and the direction of the crystallization plane. α-Fe2O3 crystals on the glaze surface show a silvery metallic luster, which belongs to a physical structural color.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |