Density-Driven Liquid-Liquid Phase Transition in Yttrium Oxide-Aluminum Oxide Liquids

这项探索性研究的目的是检验一种新型液态行为的实验证据。两种液相之间的一级相变是由两种液体之间的熵和密度差异驱动的，而不是由氧化钇-氧化铝（Y2O3-Al2O3）体系的成分波动驱动的。对这种液-液相变的研究对于进一步发展对液态性质的基本理解，以及对激光器结构中有用的新材料的进步是重要的。Y2O3-Al2O3体系中的液体具有相当重要的商业意义，因为它们产生了YAG家族的激光主体材料和其他耐火陶瓷。这些液体中结构相变的存在很可能被用来调节石榴石晶体周围的晶体性质。对新现象的研究也具有重要的内在科学意义。＊＊＊

9525984 McMillan The goal of this exploratory research is to examine the experimental evidence for a new type of behavior in the liquid state. A first-order phase transition between two liquid phases has been observed that is driven by entropy and density differences between the two liquids rather than by compositional fluctuations in the system yttrium oxide- aluminum oxide (Y2O3-Al2O3). The study of this liquid-liquid phase transition is important in order to further develop a fundamental understanding of the nature of the liquid state, and for the advancement of new materials useful in the construction of lasers. %%% Liquids in the Y2O3-Al2O3 system are of considerable commercial importance, because they give rise to the YAG family of laser host materials and other refractory ceramics. It is likely that the existence of the structural phase transformation in these liquids may be harnessed to tune the properties of crystals around the garnet crystal. The study of the new phenomena also has significant intrinsic scientific interests. ***