An Evaluation of Microstructural Processes Affecting Saline Ice Properties

9312621布朗：这项研究的目的是更全面地了解盐碱冰的主要特征，这些特征可以用来描述盐碱冰相对于纯冰的力学行为。这项研究是之前国家科学基金会拨款的继续，该基金显示盐碱冰和非盐碱冰单晶之间的材料强度存在数量级的差异，而模数和流动应力之间的差异较小。在这项研究的继续中，将考虑几种可能的微观结构机制来解释这些差异，并将其组合成盐冰单晶的单一本构方程。这项工作的重要性基于需要更好地了解微观空洞及其在固体材料变形中所起的作用*

9312621 Brown The objective of this research is the development of a more complete understanding of the dominant characteristics of saline ice that can be used to describe the mechanical behavior of saline ice relative to pure ice. This research is a continuation of a previous National Science Foundation grant which showed an order of magnitude difference in the material strength between saline ice and nonsaline ice single crystals and smaller differences between the moduli and flow stresses. In the continuation of this research several possible micro structural mechanisms will be considered to explain these differences, to be combined into a single constitutive equation for saline ice single crystals. The importance of this work is based on the need for a better understanding of microscopic cavities and the role they play in the deformation of solid materials ***