Development of Equipment for Ultrasonic Equation of State Measurements at High Pressure (4GPa) and High Temperature (1500K)

该项目将开发新的设备， 生成精确的高频（500 MHz）超声方程 在静水压力高达40帕的状态数据， 温度高达1500K。需要这些数据来解释 地震速度数据的地球模型的密度和 矿物相随深度的分布 该仪器将被设计为容纳固体样品 直径达5毫米的地幔物质。系统将 能够测量弹性常数及其压力 和温度导数。

This project will develop new equipment capable of generating precise, high-frequency (500 MHz) ultrasonic equation of state data at hydrostatic pressures up to 40 kilobars and temperatures up to 1500K. The data are needed to interpret seismic velocity data in terms of Earth models of density and mineral phase distribution with depth. The apparatus will be designed to accommodate solid samples of mantle materials up to 5 mm in diameter. The system will enable the measurement of elastic constants and their pressure and temperature derivatives.