We determined the hydrogen diffusion coefficient in α-titanium alloyed with 2.5% Al or with 2% Al +2.5% Zr at temperatures of 340–850 o . Within the limits given, alloying reduces the hydrogen diffusion coefficient by a factor of only 2–4 as compared with the diffusion coefficient in ...
Palladium and palladium alloys are quite widely used as membranes for hydrogen permeation, because of their resistance to embrittlement and to irreversible deformations during cycles of absorption and desorption of hydrogen 1–3 . The isothermal relationships between hydrogen diffusion coefficient, D H ...
The diffusion, coefficient of hydrogen in zirconium, Zircaloy-2 and Zircaloy-4 was determined in the temperature range, 275 °C to 700 °C. No measurable differences were found among the coefficients for the three materials, nor was there observed any effect of grain size or cold work. Howeve...
Determination of the Solubility and Diffusion Coefficient of Hydrogen in Zirconium Laboratory methods were presented to measure water retention and chloride diffusion coefficient in unsaturated medium sand. A tempe-diffusion cell was desi... M Someno 被引量: 23发表: 1960年 Determination of the Diffusi...
An assessment is made of single and double potential step chronoamperometry (SPSC and DPSC, respectively) at Pt disk ultramicroelectrodes (UMEs) as methods for determining the value of the diffusion coefficient of hydrogen in aqueous solutions. In SPSC, measured currents for the oxidation of di...
The Darcy permeability is similar to the diffusion coefficient, which represents the viscous resistance of a solid material to fluid flow under a pressure gradient, and is related to the microstructure of the solid skeleton and the viscosity of the fluid. ...
Presents a study in which an assessment is made of single and double potential step chronoamperometry (SPSC and DPSC, respectively) at Pt disk ultramicroelectrodes (UMEs) as methods for determining the value of the diffusion coefficient of hydrogen in aqueous solutions. How currents for the oxi...
Yukawa H,Zhang GX,Watanab N et al.Analysis of hydrogen diffusion coefficientduring hydrogen permeation through niobium and its alloys. Journal of Alloys and Compounds . 2009Yukawa H,Zhang G X,Watanabe N et al.Analysis of hydrogen diffusion coefficientduring hydrogen permeation through niobium and ...
Diffusion coefficient of copper in barrier coating is a considerable parameter for evaluating barrier ability.───铜在防渗铜镀层中的扩散系统是评价镀层防渗铜能力的重要参数. The hydrogendiffusion coefficienthad the different performance in different stages of cycling test.───研究发现,合金在循环曲线各个...
Determination of the solubility and diffusion coefficient of hydrogen in zirconium. Nihon Kinzoku Gakkaishi 24, 249 (1960). CAS Google Scholar Kearns, J. J. Diffusion coefficient of hydrogen in α-Zr, Zircaloy2 and Zircaloy4. J. Nucl. Mater. 43, 330–338 (1972). Article CAS ADS Google ...