高温高圧下における鉄の重水素化反応のその場観察

抄録

We have developed an in situ neutron diffraction technique for observing deuterization reactions of metals at temperatures up to 1000 K and pressures up to 10 GPa. The time evolution of the diffraction profile of iron due to deuterization was collected during heating to 1000 K at a fixed pressure of 6.3 GPa and the accumulated profile of the equilibrium solid-solution state at 988 K was taken with high statistics for precise analysis of its crystal structure. The detailed analytical method as well as the developed deuterization cell will be presented in this article.