SUN Xudong (1995-), male, Master candidate. E-mail: sxd@bjruitai.com
Low carbon alumina zirconia carbon (Al2O3-ZrO2-C) slide gate was designed with graphene nanosheets. The morphology of graphene nanosheets was characterized by atomic force microscopy and transmission electron microscopy. The phase composition and microstructure of the fabricated refractories were examined by X-ray diffraction, scanning electron microscopy and energy disperse spectroscopy. The results show that the GNSs can effectively improve the properties of slide gate refractories by filling the micropores and promoting the formation of silicon carbide whisker between particles. As 1.5% GNSs/Al2O3 composite powders are added instead of carbon black, the slide gate shows a better oxidation resistance and ensures the strength and thermal shock stability.
| 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 |