research papers
The high-pressure structures of NiSi and their room-temperature equations of state have been investigated using synchrotron X-ray diffraction in a diamond anvil cell, coupled with laser annealing. An -FeSi-structured phase was found to form above ∼13 GPa and a CsCl-structured phase above ∼61 GPa.
Keywords: NiSi; nickel silicide; diamond anvil cells; equations of state; high pressure; Earth's core.