Studies of Partially Solidified Systems

部分熔融系统，其中相变之间 液体和固体可以发生，出现在各种各样的设置， 例如岩浆库的凝固和地球的 芯和金属合金铸件中。 这些多阶段 系统通常在物理上是复杂的， 在单相系统中看不到的行为。 研究这种 由于缺乏一套管理制度， 从第一原理导出的方程。 这项研究将是一个 系统地试图推导出这样的方程，并阐明一些 它们不同寻常的特性。 此外， 一种糊状区，形成铵的水溶液 氯化物从下面冷却将进行实验研究， 确定该理论是否能够成功地预测 烟囱或通道的出现和特征， 自发的。

Partially molten systems, in which a change of phase between liquid and solid can occur, arise in a wide variety of settings, such as in the solidification of magma chambers and the Earth's core and in the casting of metallic alloys. These multi-phase systems are often physically complex and exhibit anomalous behavior not seen in single phase systems. The study of such systems has bee hampered by the lack of a set of governing equations derived from first principles. This research will be a systematic attempt to derive such equations and to elucidate some of their unusual properties. Also the characteristics of the mushy zone which forms as an aqueous solution of ammonium chloride is cooled from below will be studied experimentally to determine whether the theory can successfully predict the occurrence and characteristics of the chimneys or channels which from spontaneously.