Small-Angle X-ray-Scattering Study of Supercritical Trifluoromethane
Small-Angle X-ray-Scattering Study of Supercritical Trifluoromethane
复制标题
超临界三氟甲烷的小角X射线散射研究
DOI：
10.1021/jp963075r
复制
发表时间：
1997
影响因子：
3.3
通讯作者：
T. Morita
中科院分区：
文献类型：
--
作者：
K. Nishikawa;T. Morita
对超临界CF_3H进行了小角X射线散射实验。与超临界CO2的结果一样，当在P-T相图中绘制它们的值的等值线图时，CF 3 H的相关长度和密度涨落沿气液共存曲线的延伸沿着形成脊。然而，两个样品的脊在图中彼此并不完全重叠。拉伸曲线对应于高阶相变的轨迹。
Small-angle X-ray-scattering experiments for supercritical CF3H were carried out. As in the previous results for supercritical CO2, the correlation lengths and density fluctuations for CF3H form a ridge along the extension of the coexistence curve of gas and liquid when the contour maps of their values are drawn in the P−T phase diagram. However, the ridges of the two samples do not overlap perfectly with each other in the diagram. The extension curves correspond to the loci of the phase transition with higher order.