Doping α-Al2O3 to reduce its hydrogen permeability: Thermodynamic assessment of hydrogen defects and solubility from first principles
Sign Up to like & getrecommendations! Published in 2019 at "Acta Materialia"
DOI: 10.1016/j.actamat.2019.02.031
Abstract: Abstract This paper assesses the role of doping on the hydrogen permeability and electronic properties of α-Al2O3. Formation energies of intrinsic and extrinsic defects in α-Al2O3 were calculated using density functional theory. Using these energies… read more here.
Keywords: hydrogen; hydrogen permeability; solubility; defect concentrations ... See more keywords
Effects of rolling and annealing on hydrogen permeability and crystal orientation in Nb-TiNi two-phase alloys
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2019.07.021
Abstract: Abstract The Nb19Ti40Ni41 alloy has a lamellar structure with bcc-Nb and B2-TiNi phases. It is known that a granule Nb phase forms in the TiNi matrix after thermal annealing and that the hydrogen permeability of… read more here.
Keywords: alloy; phase; crystal orientation; hydrogen permeability ... See more keywords
Research on hydrogen permeability of polyamide 6 as the liner material for type Ⅳ hydrogen storage tank
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DOI: 10.1016/j.ijhydene.2020.06.174
Abstract: Abstract As the liner material of type IV hydrogen storage tank, polymer is restricted in commercial application due to its high hydrogen permeability. In this paper, for the first time, the suitability of polyamide 6… read more here.
Keywords: hydrogen storage; hydrogen permeability; storage tank; hydrogen ... See more keywords
Nb35Hf32.5Co32.5 dual-phase alloy: Hydrogen permeability degradation due to the microstructural changes caused by annealing
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DOI: 10.1016/j.ijhydene.2021.02.046
Abstract: Abstract NbxHf(100-x)/2Co(100-x)/2 (30 ≤ x ≤ 50) alloys are a type of typical dual-phase materials with advantages of excellent hydrogen permeability, high intensity, and low cost, which are at the forefront of the development trends of new materials used… read more here.
Keywords: nb35hf32 5co32; hydrogen; hydrogen permeability; dual phase ... See more keywords
Hydrogen permeability of non-stoichiometric tungsten oxides
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DOI: 10.1016/j.jnucmat.2021.152860
Abstract: This paper presents results from an investigation of the permeation rate of gaseous hydrogen through a double-layer membrane by the classic gas accumulation method at 400 °C. Dense 8-micrometer thick tungsten films were grown on… read more here.
Keywords: permeation; non stoichiometric; hydrogen permeability; tungsten ... See more keywords
Analysis for Reverse Temperature Dependence of Hydrogen Permeability through Pd-X (X = Y, Ho, Ni) Alloy Membranes Based on Hydrogen Chemical Potential
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DOI: 10.3390/membranes10060123
Abstract: It is generally understood that the hydrogen permeability of Pd-Ag alloy membranes declines with decreasing temperature. However, recent studies have revealed that the hydrogen permeability of Pd-Ag alloy membranes inversely increases at a certain temperature… read more here.
Keywords: alloy membranes; hydrogen permeability; temperature; hydrogen ... See more keywords