CAJ | 학술논문

在金属等温体积模量和冲击波动态压缩实验数据基础上,利用胡-经(HJ)方法计算了57种金属材料在 Born-Mayer(BM)模型中冷压参数 q 和 Q ,同时提出了在没有足够实测冲击波数据前提下结合零温Thomas-Fermi(TF)模型与低压实验数据计算冷压参数的试探法.组合 Faussurier 电子热压模型、Cowan 离子热压模型和以上方法得到的冷压拟合式,通过对Be、Co和Pb的计算和实验的冲击绝热数据的对比,分析了HJ法与综合优选法得到的q和Q之间的差异.进一步计算了Sr、Ba和Sm材料沿冲击绝热曲线上的热力学量,通过与相应的实测结果以及与其他模型对比来评估HJ冷压方程的精度.
재금속등온체적모량화충격파동태압축실험수거기출상,이용호-경(HJ)방법계산료57충금속재료재 Born-Mayer(BM)모형중냉압삼수 q 화 Q ,동시제출료재몰유족구실측충격파수거전제하결합령온Thomas-Fermi(TF)모형여저압실험수거계산냉압삼수적시탐법.조합 Faussurier 전자열압모형、Cowan 리자열압모형화이상방법득도적냉압의합식,통과대Be、Co화Pb적계산화실험적충격절열수거적대비,분석료HJ법여종합우선법득도적q화Q지간적차이.진일보계산료Sr、Ba화Sm재료연충격절열곡선상적열역학량,통과여상응적실측결과이급여기타모형대비래평고HJ냉압방정적정도.
The cold pressure parameters ofq andQ in the Born-Mayer(BM) model for fifty-seven metals equations were calculated by using the Hu-Jing(HJ) method based on isothermal bulk moduli of metal and measured data in shock wave experiments, and at the same time a trial method for computing them by combining Thomas-Fermi model at absolute zero-temperature with low pressure experiment data, is put forward for lack of the sufficient shock wave experiment data. By integrating the Faussurier model for electron thermal pressure, the Cowan model for ion thermal pressure and the above obtained cold pressure fitted formula, the Hugoniot curves of Be, Co and Pb are calculated and compared with experimental data, and then the discrepancies ofq value andQ value obtained by HJ method and a comprehensive method are analyzed and interpreted. Furthermore, the precision for the cold pressure equation by HJ method is assessed by comparing the thermodynamic quantities on the Hugoniot curves of Sr, Ba, and Sm with the corresponding measured results and the calculated ones by other models.