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Outline
In this paper, a slanting impaction model of two parallel plates was proposed to research the effect of friction between particles during explosive consolidation of powder. The change tendence of the interface friction of the particles with the change of temperature was analyzed, and influence of shock compression, grain size of powders and intensity of material on the time for the holes compaction was researched by LS-DYNA program. A formula to calculate the temperature rise at interface caused by adiabatic friction is given. The result shows that the temperature rise is related to factors of material's characteristics, size of particles, angle of shock-direction and shock compression and so on. The temperature rise decreases with the increase of ability of heat deposit and transfer, and the intensity of material's. It increases as the porosity of material, size of diameter or shock pressure increases. The temperature at the interface can be higher than melting point of the material if the grain diameter and compact force are appropriate.
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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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