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@ARTICLE{Ji:863098,
author = {Ji, Yaqi and Marks, Nigel A. and Bosbach, Dirk and
Kowalski, Piotr M.},
title = {{E}lastic and thermal parameters of
lanthanide-orthophosphate ({L}n{PO}4) ceramics from
atomistic simulations},
journal = {Journal of the European Ceramic Society},
volume = {39},
number = {14},
issn = {0955-2219},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2019-03212},
pages = {4264-4274},
year = {2019},
abstract = {We performed extensive and accurate atomistic simulations
of elastic and heat transport properties of series of
rare-earth orthophosphate ceramics LnPO4 (Ln = La, …,
Lu and Y) in monazite and xenotime structures. The results
show clear trends in the elastic moduli along the
lanthanide-series, which complement the existing
experimental data on these materials. We found that the
thermal conductivities of xenotimes are about two times
larger than those of monazite, which is in agreement with
the experimental measurements and explained by sizes of the
primitive cells. Large sets of data allowed assessment of
the validity of Slack's model as well as accuracy of
molecular dynamics simulations of heat flow for prediction
of thermal conductivity. Last, but not least, the separation
of the intrinsic and extrinsic contribution to the measured
thermal diffusivities allowed for a detailed analysis of the
phonon mean free paths in the considered materials.},
cin = {IEK-6 / JARA-HPC},
ddc = {660},
cid = {I:(DE-Juel1)IEK-6-20101013 / $I:(DE-82)080012_20140620$},
pnm = {161 - Nuclear Waste Management (POF3-161) / Atomistic
modeling of radionuclide-bearing materials for safe
management of high level nuclear waste. $(jiek61_20181101)$},
pid = {G:(DE-HGF)POF3-161 / $G:(DE-Juel1)jiek61_20181101$},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000476965000040},
doi = {10.1016/j.jeurceramsoc.2019.05.038},
url = {https://juser.fz-juelich.de/record/863098},
}