TY - JOUR

T1 - Kinetics of the isothermal decomposition of zirconium hydride

T2 - terminal solid solubility for precipitation and dissolution

AU - Denisov, E. A.

AU - Kompaniets, T. N.

AU - Voyt, A. P.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - 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.

AB - 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.

KW - Permeation

KW - Surface-limited regime

KW - Terminal solid solubility

KW - Zr alloy

KW - HYDROGEN DESORPTION-KINETICS

KW - METAL

KW - PERMEATION

UR - http://www.scopus.com/inward/record.url?scp=85043467166&partnerID=8YFLogxK

U2 - 10.1016/j.jnucmat.2018.03.007

DO - 10.1016/j.jnucmat.2018.03.007

M3 - Article

AN - SCOPUS:85043467166

VL - 503

SP - 195

EP - 197

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

ER -