Cladding

material_library.cladding.PorousGraphite(mass_density=0.9700 * units.g / units.cc)

Low density carbon typically used as a buffer layer in coated particles.

Parameters:: mass_density (density) – The graphite mass density.

Example:

>>> from core import *
>>> from material_library.cladding import PorousGraphite
>>> pgr = PorousGraphite()
>>> print(pgr)
Material     : PorousGraphite
Type         : clad
Mass density : 0.9700 g/cc
Isotope   Wt                  Nd (1/b/cm)
C-Nat     100.00    %         4.86344e-02
Total     100.00              4.86344e-02

Note

Nominal (default) mass density taken from

NEA Benchmark of the Modular High-Temperature Gas-Cooled Reactor-350 MW Core Design

material_library.cladding.PyroliticGraphite(mass_density=1.9 * units.g / units.cc)

Coating layer used in TRISO particle manufacturing.

Parameters:: mass_density (density) – The mass density.

Example:

>>> from core import *
>>> from material_library.cladding import PyroliticGraphite
>>> pyg = PyroliticGraphite()
>>> print(pyg)
Material     : PyC
Type         : clad
Mass density : 1.9000 g/cc
Isotope   Wt                  Nd (1/b/cm)
C-Nat     100.00    %         9.52632e-02
Total     100.00              9.52632e-02

material_library.cladding.Zircaloy2(mass_density=6.55 * units.g / units.cc, impurities=True)

Basic reactor grade Zirconium alloy.

Taken form: standards specification

Parameters:: mass_density (density) – The mass density of the alloy

Example:

>>> from core import *
>>> from material_library.cladding import Zircaloy2
>>> zirc = Zircaloy2()
>>> print(zirc)
Material     : Zircaloy-2
Type         : clad
Mass density : 6.5500 g/cc
Isotope   Wt                  Nd (1/b/cm)
Cr-Nat    0.10      %         7.58615e-05
Fe-Nat    0.15      %         1.05950e-04
Ni-Nat    500.0     ppm       3.36026e-05
Zr-Nat    98.20     %         4.24614e-02
Sn-Nat    1.50      %         4.98418e-04
Total     100.00              4.31753e-02

material_library.cladding.Zircaloy4(mass_density=6.55 * units.g / units.cc, impurities=True)

Basic reactor grade Zirconium alloy.

Taken from standards specification

Parameters:: mass_density (density) – The mass density of the alloy

Example:

>>> from core import *
>>> from material_library.cladding import Zircaloy4
>>> zirc = Zircaloy4()
>>> print(zirc)
Material     : Zircaloy-4
Type         : clad
Mass density : 6.5500 g/cc
Isotope   Wt                  Nd (1/b/cm)
Cr-Nat    0.10      %         7.58615e-05
Fe-Nat    0.21      %         1.48329e-04
Zr-Nat    98.19     %         4.24571e-02
Sn-Nat    1.50      %         4.98418e-04
Total     100.00              4.31797e-02