Disorder and Dynamics in Silicate Liquids, Glasses, and Crystals: Nuclear Magnetic Resonance Studies

本项目是为了继续和扩大研究， 硅酸盐液体中无序的结构和动力学， 使用核磁共振（NMR） 谱 这项工作的主要目标是更好地 了解热力学和运输的基本原理 无序材料的性质，特别是构型 熵，密度，粘度和扩散率，以更多 准确地外推到压力、温度和 时间在自然中发现。 核磁共振将被用来研究当地和 地球化学意义周围的中程构造 阳离子和阴离子O，在高温下的液体中， 它们的玻璃状等价物。 将特别注意 温度和压力对配位数的影响 Si、Al和O。 结晶固体的继续研究将被用于 帮助校准和理解眼镜中的观察结果， 液体.

This project is for the continuation and extension of research on the structure and dynamics of disordering in silicate liquids, glasses, and crystals, using nuclear magnetic resonance (NMR) spectroscopy. The major objective of this work is to better understand the fundamentals of the thermodynamic and transport properties of disordered materials, particularly configurational entropy, density, viscosity, and diffusivity, in order to more accurately extrapolate to conditions of pressure, temperature, and time found in nature. NMR will be used to study the local and intermediate range structure around geochemically significant cations, and the anion O, in liquids at high temperature and in their glassy equivalents. Particular attention will be paid to the effects of temperature and pressure on coordination numbers of Si, Al, and O. Continue studies of crystalline solids will be used to help calibrate and understand observations in glasses and liquids.