Construction of Rapid-Quench Cold-Seal/TZM Apparatus

该合同提供了建造五个用于高温高压的特殊设计反应容器所需资金的50%。压力容器的设计、建造和操作将在加州理工学院地质与行星科学部首席研究员的指导下进行。加州理工学院将为该项目提供剩余50%的必要资金。该装置具有一个新的特点，即样品在实验过程中被磁悬浮，并且可以在不释放压力的情况下快速地移入和移出容器内的热区。这些容器将用于广泛的项目，旨在了解天然和合成模型火成岩系统中挥发性成分的行为，包括：研究氢同位素在蒸气和硅酸盐熔体之间的分配及其与岩浆液体中水的形态的关系；研究水和二氧化碳在硅酸盐玻璃和熔体中的溶解和扩散；研究碳同位素在蒸气和硅酸盐熔体之间的分配。

This award provides 50% of the funding needed to construct five special design reaction vessels for use at high pressure and temperature. The design, construction and operation of the pressure vessels will be under the direction of the Principal Investigator in the Division of Geological & Planetary Sciences at the California Institute of Technology. Caltech will provide the remaining 50% funding necessary for the project. The proposed apparatus incorporates a novel feature whereby the sample is magnetically levitated during an experiment and can be rapidly moved into and out of the hot zone within the vessel without release of pressure. The vessels will be used in a wide variety of projects aimed at understanding the behavior of volatile components in natural and synthetic model igneous systems, including: investigations of the partitioning of hydrogen isotopes between vapor and silicate melts and its relation to the speciation of water in magmatic liquids; studies of the solubility and diffusion of water and carbon dioxide in silicate glasses and melts; study of the partitioning of carbon isotopes between vapor and silicate melts.