Journal of Nuclear Materials ( IF 2.8 ) Pub Date : 2018-03-06 , DOI: 10.1016/j.jnucmat.2018.03.007 E.A. Denisov , T.N. Kompaniets , A.P. Voyt
The hydrogen permeation technique in the surface-limited regime (SLR) was first used to study the isothermal decomposition of zirconium hydride. It is shown that under isothermal conditions, the hydrogen terminal solid solubility in the α-phase for hydride precipitation (TSSp) and dissolution (TSSd) differ only by 6%, in contrast to the 20–30% indicated in the available literature. It is demonstrated that even the minimum heating/cooling rate (1 C/min) used in the traditional methods of studying TSSp and TSSd is too high to exclude the effect of kinetics on the results obtained.
中文翻译:
氢化锆等温分解的动力学:沉淀和溶解的最终固体溶解度
首先采用表面受限状态下的氢渗透技术(SLR)研究氢化锆的等温分解。结果表明,在等温条件下,氢化物沉淀(TSSp)和溶出度(TSSd)在α相中的氢末端固溶度仅相差6%,而现有文献中仅为20%至30%。结果表明,即使在传统的研究TSSp和TSSd的方法中使用的最小加热/冷却速率(1 C / min)也太高了,无法排除动力学对所得结果的影响。