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The changes of microstructure for air quench steel slag are studied by observing the changes of various phases in air quench steel slag with time as well as calculating the numbers and area of particles for various phases with the softwares of Photoshop and Image J. The results showed that the phase types of air quench steel slag were not changed with time and diffraction peak intensity was slightly decreased. The number of particles for dicalcium silicate phase in slag is decreased significantly with time and total area of the phase is changed a little. Within 20 days,the average particle size is increased from 4.96 μm to 6.06 μm, while there are no significant changes for other phases. It can be seen that the increase of particle size for dicalcium silicate is due to its own recombination, not the change of other phases. The equation of phase change for dicalcium silicate in air quench steel slag is 1-(1-α)1/3=0.039 T.
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| 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 |
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