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An in situ Brillouin scattering system is developed to study the elastic properties of materials under high pressure-temperature conditions in deep interior of the Earth and planets. This system integrates confocal Brillouin scattering system with a double-sided laser heated system. Furthermore, the magnetic sputter film deposition technique and photolithographic shaping method are used to grow heat insulated layer and internal heat absorber on the surface of diamond anvil for heating sample easily and uniformly. To study the elastic properties of “hot ice,” the Brillouin scattering of liquid water was performed up to 21.8GPa and 1170K in this paper.
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Li et al. (2006) studied this question.
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