**6. Summary**

The physical processes of electrical explosion of metallic foil and magnetically driven quasiisentropic compression are very complex. This chapter dicusses these problem simply from the aspect of one dimensionally magnetohydrodyamics. The key variable of electrical resistivity was simplified, which is very improtant. Especially for the problem of magnetically driven quasi-isentropic compression, only the resistivity is considered before the vaporazation point of the matter. In fact, the phase states of the loading surface vary from solid to liquid, gas and plasma when the loading current density becomes more and more. In order to optimize the structural shapes of electrodes and the suitable sizes of samples and windows in the experiments of magnetically driven quasi-isentropic compression, two dimensionally magnetohydrodynamic simulations are necessary.

The applications of the techniques of electrical explosion of metallic foil and magnetically driven quasi-isentropic compression are various, and the word of versatile tools can be used to describe them. In this chapter, only some applications are presented. More applications are being done by us, such as the quasi-isentropic compression experiments of un-reacted solid explosives, the researches of hypervelocity impact phenomena and shock Hugoniot of materials at highly loading strain rates of 105~107 1/s.
