Hydrogen Permeation and Absorption Tool (HyPAT v2.0): An update to facilitate analyses of data from hydrogen absorption experiments

Abstract

The Hydrogen Permeation and Absorption Tool (HyPAT) v2.0 is a data analysis application and graphical user interface (GUI) that facilitates the calculation of hydrogen solubility, diffusivity, and permeability from experimental transient absorption data obtained from a Sieverts-type apparatus while assuming a dense metallic plane sheet sample. Prior to the v2.0 update, HyPAT (formerly known as the Hydrogen Permeation Analysis Tool) only processed data from permeation experiments in which the “build-up in closed volume” method was used. This update made HyPAT the first open-source analysis tool for processing data from hydrogen absorption experiments that use a Sieverts-type apparatus. Features such as batchwise data analysis, a repository of literature values that can be used for comparison purposes, informative graphs including pressure–composition–temperature (PCT) plots, and flexibility in terms of experimental setups enable a user-friendly experience that both streamlines and standardizes analyses of data from hydrogen absorption experiments.