电阻率和电导率
休克(循环)
材料科学
压缩(物理)
高压
机械
复合材料
电气工程
物理
工程类
医学
内科学
作者
А. М. Молодец,А. А. Голышев
出处
期刊:Izvestiâ Akademii nauk SSSR. Fizika zemli
[The Russian Academy of Sciences]
日期:2023-07-01
卷期号: (4): 39-52
标识
DOI:10.31857/s0002333723040087
摘要
In situ electrical resistivity measurements are performed on samples of iron with a hexagonal close–packed lattice (ε–Fe), compressed and heated by stepwise shock loading. Equations of state for ε-Fe are constructed. The obtained experimental results are mathematically simulated in the hydrocode based on the developed equations of state. The modeling results are used to reconstruct the volumetric–temperature dependence of the ε–Fe electrical resistivity at pressures of ≈20–70 GPa and temperatures of ≈750–950 K. The volume–temperature dependence of the ε-Fe thermal conductivity coefficient is calculated according to the Wiedemann–Franz law. The results obtained for the electrical and thermal conductivity of shock compressed and heated ε-Fe are compared with literature experimental and theoretical data for iron and silicon iron.
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