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Phase Evolution in Solidification Process of Germanium at High Pressure
Author(s) -
He D. W.,
Zhang F. X.,
Zhang M.,
Liu R. P.,
Liu R. P.,
Xu Y. F.,
Wang W. K.,
Wang W. K.
Publication year - 1998
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/(sici)1521-4079(1998)33:1<43::aid-crat43>3.0.co;2-7
Subject(s) - germanium , phase (matter) , materials science , high pressure , diffraction , non equilibrium thermodynamics , kinetics , thermodynamics , phase transition , thermal , process (computing) , crystallography , metallurgy , chemistry , silicon , optics , physics , organic chemistry , quantum mechanics , computer science , operating system
In this paper the phase evolution in the solidification process of germanium under high pressure is investigated. Data obtained on electrical resistance changes, and in situ differential thermal measurements as well as X‐ray diffraction enable us to arrive at the phase relations and transformation processes occurred during solidification under high pressure. At high pressure above 4 GPa, the metallic germanium phase is first solidified from the melt and then transformed into GeI phase and/or GeIII phase. The kinetics of the nonequilibrium transitions is briefly discussed.