Industry/University Cooperative Research Center for Ultra-High Speed Integrated Circuits and Systems (ICAS)

通过将高压数据下的冲击波状态方程和压缩速度与地球外核中存在的压力和温度范围内的地震数据进行比较，可以获得对地核成分的约束。 关于地核成分的知识与地球分异和热演化的理论密不可分。 该项目的最新结果用 Fe 和 FeS 的熔点来限制核心温度。 该奖项为继续探索和测量候选核心材料（Fe、FeS 和 FeO）的状态方程、压力-体积-温度关系的计划提供了支持。 除了状态方程之外，还将使用速度干涉测量法和新的预热技术来测量高压和高温下的纵向和体声速。 预热样品的冲击测量范围为 1000 - 2500 K，无论是在岩心材料还是地幔的一些矿物中。

Constraints on the composition of the earth's core can be obtained by comparing shock wave equation of state and compressional velocity at high pressure data to seismic data over the pressure and temperature range present in the earth's outer core. Knowledge of the composition of the core is inextricably interwoven with theories of the differentiation and thermal evolution of the earth. Recent results from this project constrain the temperature of a core in terms of the melting point of Fe and FeS. This award provides support for continuation of a program of exploration and measurements of the equation of state, pressure-volume-temperature relations of candidate core materials- Fe, FeS, and FeO. In addition to the equation of state longitudinal and bulk sound speed at high pressure and high temperatures using velocity interferometry and a new preheating technology will be measured. The regime of shock measurements of preheated samples is 1000 - 2500 K both in core materials and some minerals of mantle.