Femtosecond Laser Driven Shock Quenching of the Nanocrystalline High-Pressure Phase of Iron
Quenching of the nanocrystalline high-pressure e phase of iron, which has not been observed under a conventional shock compression, was attained using a femtosecond laser. A small quantity of the g phase of iron also existed. We found that the e phase was induced by the shock itself but not the g phase. The g phase was suggested to be induced as an intermediate structure between the a-e transition. The femtosecond laser driven shock may have the potential to quench high-pressure phases which has not been attained using conventional methods.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
T. Sano et al., "Femtosecond Laser Driven Shock Quenching of the Nanocrystalline High-Pressure Phase of Iron", Materials Science Forum, Vols. 475-479, pp. 3475-3478, 2005