# Copyright 2019 TerraPower, LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Lithium.
.. WARNING:: Whenever you irradiate lithium you will get tritium.
"""
from armi import runLog
from armi.materials import material
from armi.nucDirectory import nuclideBases as nb
from armi.utils.mathematics import getFloat
[docs]class Lithium(material.Fluid):
name = "Lithium"
references = {"density": "Wikipedia"}
enrichedNuclide = "LI6"
[docs] def density(self, Tk=None, Tc=None):
r"""
Wikipedia.
Will be liquid above 180C.
"""
return 0.512 # g/cc
[docs] def setDefaultMassFracs(self):
self.setMassFrac("LI6", nb.byName["LI6"].abundance)
self.setMassFrac("LI7", nb.byName["LI7"].abundance)
[docs] def meltingPoint(self):
return 453.69 # K
[docs] def boilingPoint(self):
return 1615.0 # K
[docs] def thermalConductivity(self, Tk=None, Tc=None):
r"""
Wikipedia
"""
return 84.8 # W/m-K
[docs] def heatCapacity(self, Tk=None, Tc=None):
return 3570.0