Skip to content

Commit

Permalink
Merge pull request #286 from RemDelaporteMathurin/graphite--shirasu
Browse files Browse the repository at this point in the history
  • Loading branch information
RemDelaporteMathurin authored Jun 6, 2024
2 parents 404e9e4 + 839f131 commit ff4de17
Show file tree
Hide file tree
Showing 2 changed files with 83 additions and 0 deletions.
67 changes: 67 additions & 0 deletions h_transport_materials/property_database/carbon.py
Original file line number Diff line number Diff line change
Expand Up @@ -98,13 +98,80 @@
note="H2 diffusion in graphene calculated by molecular dynamics. Data from table III",
)

import numpy as np

graphite_density = 2.266 * u.g / u.cm**3

carbon_atomic_mass = 12.011 * u.g / u.mol

graphite_atomic_density = graphite_density / carbon_atomic_mass

shirasu_solubility_IG_110U = Solubility(
S_0=np.exp(-14.5) * graphite_atomic_density * u.Pa**-0.5,
E_S=-18.2 * u.kJ / u.mol,
source="shirasu_thermodynamic_1993",
note="graphite IG-110U, data from Table 1",
range=(u.Quantity(700, u.degC), u.Quantity(1000, u.degC)),
isotope="H",
)

shirasu_solubility_POCO_AXS_5Q = Solubility(
S_0=np.exp(-15.6) * graphite_atomic_density * u.Pa**-0.5,
E_S=-21.5 * u.kJ / u.mol,
source="shirasu_thermodynamic_1993",
note="graphite POCO AXS-5Q, data from Table 1",
range=(u.Quantity(700, u.degC), u.Quantity(1000, u.degC)),
isotope="H",
)

shirasu_solubility_ISO_880U_low_temp = Solubility(
S_0=np.exp(-15.8) * graphite_atomic_density * u.Pa**-0.5,
E_S=-22.0 * u.kJ / u.mol,
source="shirasu_thermodynamic_1993",
note="graphite ISO-880U, data from Table 1",
range=(u.Quantity(700, u.degC), u.Quantity(900, u.degC)),
isotope="H",
)

shirasu_solubility_ISO_880U_high_temp = Solubility(
S_0=np.exp(-18.5) * graphite_atomic_density * u.Pa**-0.5,
E_S=-48.2 * u.kJ / u.mol,
source="shirasu_thermodynamic_1993",
note="graphite ISO-880U, data from Table 1",
range=(u.Quantity(900, u.degC), u.Quantity(1000, u.degC)),
isotope="H",
)

shirasu_solubility_EK_98_low_temp = Solubility(
S_0=np.exp(-14.7) * graphite_atomic_density * u.Pa**-0.5,
E_S=-13.5 * u.kJ / u.mol,
source="shirasu_thermodynamic_1993",
note="graphite EK-98, data from Table 1",
range=(u.Quantity(700, u.degC), u.Quantity(800, u.degC)),
isotope="H",
)

shirasu_solubility_EK_98_high_temp = Solubility(
S_0=np.exp(-18.5) * graphite_atomic_density * u.Pa**-0.5,
E_S=-47.6 * u.kJ / u.mol,
source="shirasu_thermodynamic_1993",
note="graphite EK-98, data from Table 1",
range=(u.Quantity(800, u.degC), u.Quantity(1000, u.degC)),
isotope="H",
)

properties = [
causey_diffusivity,
atsumi_diffusivity,
atsumi_solubility,
petucci_diffusivity_graphite,
petucci_diffusivity_graphene,
shirasu_solubility_IG_110U,
shirasu_solubility_POCO_AXS_5Q,
shirasu_solubility_ISO_880U_low_temp,
shirasu_solubility_ISO_880U_high_temp,
shirasu_solubility_EK_98_low_temp,
shirasu_solubility_EK_98_high_temp,
]

for prop in properties:
Expand Down
16 changes: 16 additions & 0 deletions h_transport_materials/references.bib
Original file line number Diff line number Diff line change
Expand Up @@ -2692,6 +2692,22 @@ @article{petucci_diffusion_2013
pages = {044706},
}
@article{shirasu_thermodynamic_1993,
title = {Thermodynamic analysis of hydrogen solubility in graphite},
volume = {200},
issn = {0022-3115},
url = {https://www.sciencedirect.com/science/article/pii/002231159390332S},
doi = {10.1016/0022-3115(93)90332-S},
abstract = {The hydrogen solubility in isotropic graphites ISO 880U and EK 98 has been measured in the temperature range of 700–1000°C at pressures below 2 × 104Pa. The solubility data obtained closely obeyed Sieverts' law. The hydrogen solubility and the enthalpy of solution for ISO 880U and EK 98 graphites were compared with those for isotropic graphites IG 110U and POCO AXF-5Q. The hydrogen solubility in a highly oriented pyrolytic graphite PGCCL has also been measured at 1000°C. It was an order of magnitude lower than that in isotropic graphites. Partial thermodynamic functions of hydrogen in isotropic graphites were obtained by a dilute solution model and discussed.},
number = {2},
urldate = {2024-05-31},
journal = {Journal of Nuclear Materials},
author = {Shirasu, Yoshirou and Yamanaka, Shinsuke and Miyake, Masanobu},
month = apr,
year = {1993},
pages = {218--222},
}
@article{fuerst_hastelloyn_2024,
title = {Hydrogen and deuterium permeation in Hastelloy N},
journal = {Journal of Nuclear Materials},
Expand Down

0 comments on commit ff4de17

Please sign in to comment.