Shock standards Cu, Ag, Ir, and Pt in a wide pressure range

作     者：Leonid Burakovsky Dean L.Preston Scott D.Ramsey Charles E.Starrett Roy S.Baty Leonid Burakovsky;Dean L.Preston;Scott D.Ramsey;Charles E.Starrett;Roy S.Baty

作者机构：Los Alamos National LaboratoryLos AlamosNew Mexico 87545USA 

出 版 物：《Matter and Radiation at Extremes》 (极端条件下的物质与辐射（英文）)

年 卷 期：2023年第8卷第4期

页      面：37-46页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：U.S. DOE/NNSA 

主　　题：silver copper analytic 

摘      要：Although they are polymorphic(multiphase)materials,both copper and silver are reliable Hugoniot standards,and thus it is necessary to establish an accurate analytic model of their principal *** we present analytic forms of their principal Hugoniots,as well as those of iridium and platinum,two“pusherstandards for shock-ramp experiments,over a wide range of *** are based on our new analytic model of the principal Hugoniot[Burakovsky et al.,***.132,215109(2022)].Comparison of the four Hugoniots with experimental and independent theoretical data(such data exist to very high pressures for both copper and silver)demonstrates excellent ***,the new model for copper and silver can be considered as providing the corresponding Hugoniot standards over a wide pressure *** also suggest an approach for calculating the Grüneisen parameter along the Hugoniot and apply it to copper as a prototype,and our results appear to be in good agreement with the available data.