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Outline
Research of dynamic respond properties for metal at initial high-temperature condition is very important to develop the universal equation of state. Thus, resistance-wire preheating apparatus over initial temperature range of 300-800 K has been built up by our group in light-gas-gun experiments, and a non-contact pyrometer diagnostic technique was developed to perform simultaneous measurements of the shock-Hugoniot and the interfacial temperature on a preheated metal. Examples for measuring dynamic respond properties of tantalum are presented. The measured data for shock velocity versus particle velocity at initial temperature of 300 K is in agreement with previous shock compression data, while the data of 773 K lies below the theoretical Hugoniot that was calculated based on the principal Hugoniot. The obtained interfacial temperatures are in agreement with the melting points that shocked from the ambient conditions and ab initio results. It indicates that our target-preheating apparatus and non-contact pyrometer diagnostic technique is a viable approach to study the temperature effects on shock response of metals.
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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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