金属-非金属転移をおこす超臨界流体の構造解析
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We describe the experimental method and some of the results of our recent structural studies for expanded fluids. The energy-dispersive X-ray diffraction measurements for fluid Hg have been carried out for the first time in the density range from 13.55 to 8.78 g/cm<SUP>3</SUP> including the metal-nonmetal transition region. It was found that the volume expansion of liquid Hg in the metallic region, to the reduced density of about 10 g/cm<SUP>3</SUP>, is not accompanied by a uniform increase of interatomic distance r<SUB>1</SUB> but mainly caused by a decrease of coordination number N<SUB>1</SUB>. When the transition region is approached the decrease of N<SUB>1</SUB> becomes rather small and rl starts to elongate.
- 日本結晶学会の論文
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