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Computational Earth Materials: Atomistic simulations of earth materials and processes
using high-performance computers.
Research Interests:
Nuclear
waste forms, nuclear fuel materials
Structure and properties of
earth materials 
Materials under extreme
conditions
Mineral-water interfaces
Selected publications:
Nuclear waste and fuel materials:
 - J.W. Wang (2015)
     Incorporation of iodine into apatite structure: a crystal chemistry
     approach using Artificial Neural Network. Frontiers in Earth Science, 03,
     20. doi: 10.3389/feart.2015.00020.
- Tiankai Yao, Fengyuan
     Lu, Yachun Wang, Spencer Scott, Jianwei Wang, Rodney C. Ewing and Jie Lian
     (2014) Bulk Iodoapatite Ceramic Densified by Spark Plasma Sintering with
     Exceptional Thermal Stability. Journal of American Ceramic Society, 97,
     2409. DOI: 10.1111/jace.13101
- J.W. Wang, R. C.
     Ewing, and U. Becker (2014) Average structure and local configuration of
     excess oxygen in UO2+x. Scientific Reports, 04, 216. DOI:10.1038/srep04216. (A video showing oxygen diffusion
     in UO2+x lattice: uo2+x-diffusion.mpg,
     11 seconds, 2MB).
- J.W. Wang, R. C.
     Ewing, and U. Becker (2013) Electronic structure and stability of
     hyperstoichiometric UO2+x under pressure. Physical Review B,
     88. 024109. 10.1103/PhysRevB.88.024109
- J.W. Wang and U.
     Becker (2013) Activation energetics of actinide diffusion in UO2
     from first-principles calculations. Journal of Nuclear Materials, 433,
     424-430. DOI: 10.1016/j.jnucmat.2012.10.011 
 
Earth materials
 - J.W. Wang, F.X. Zhang,
     J.M. Zhang, R.C. Ewing, U. Becker, Z.H. Cai (2014)
     Carbonate orientational order and superlattice structure in vaterite,
     Journal of Crystal Growth, 407, 78 - 86.
     doi:10.1016/j.jcrysgro.2014.08.028
- J.W. Wang and U.
     Becker (2012) Energetics and kinetics of carbonate orientational ordering
     in vaterite calcium carbonate. American Mineralogist, 97, 1427-1436. doi: 10.2138/am.2012.3990. (A video showing ordered vaterite from disordered vaterite:vaterite-transition.mpg,
     11 seconds, 4.5 MB)
- H. Lu, J. W. Wang, C.
     Liu, C.I. Ratcliffe, and J.A. Ripmeester, (2012) Multiple H2
     occupancy of the cages in hydrogen hydrate under mild condition. Journal
     of the American Chemical Society, 134, 9160-9162. DOI: 10.1021/ja303222u.
- J.W. Wang, H. Lu, J.A.
     Ripmeester, and U. Becker (2010) Molecular-Dynamics and First-Principles
     Calculations of Raman Spectra and Molecular and Electronic Structure of
     Hydrogen Clusters in Hydrogen Clathrate Hydrate. Journal of Physical
     Chemistry C 114, 21042-21050. DOI: 10.1021/jp106788u
- I. Sethmann, J.W.
     Wang, U. Becker, A. Putnis (2010) Strain-Induced Segmentation of Magnesian
     Calcite Thin Films Growing on a Calcite Substrate. Crystal Growth &
     Design, 10, 4319 - 4326. DOI: 10.1021/cg100202h. 
 
Materials under high pressure:
 - J.W. Wang, Z. Rak,
     F.X. Zhang, R.C. Ewing, and U. Becker (2011) Electronic structure and
     energetics of tetragonal SrCuO2 and its high-pressure
     superstructure phase. J. Physics: Condensed Matter, 23, 465503.
     doi:10.1088/0953-8984/23/46/465503
- J.W. Wang, F. Zhang,
     J. Lian, R.C. Ewing, and U. Becker (2011) Energetics and concentration of
     defects in Gd2Ti2O7 and Gd2Zr2O7
     pyrochlore at high pressure. Acta Materialia 59,1607-1618.
     10.1016/j.actamat.2010.11.025
- F.X. Zhang, J.W. Wang,
     M. Lang, J.M. Zhang, R.C. Ewing (2009) High-pressure phase transitions of
     ScPO4 and YPO4. Physical Review B, 80,184114. DOI:
     10.1103/PhysRevB.80.184114
- F. Zhang, J. Wang, J.
     Lian, M.K. Lang, U. Becker, and R.C. Ewing (2008) Phase stability and
     pressure dependence of defect formation in Gd2Ti2O7
     and Gd2Zr2O7 pyrochlores. Physical Review
     Letters, 100, 045503. 10.1103/PhysRevLett.100.045503
 
Ceramics under irradiation:
 - J.W. Wang, M. Lang,
     R.C. Ewing, and U. Becker (2013) Multi-scale simulation of structural
     heterogeneity of swift-heavy ion tracks in complex oxides. Journal of
     Physics: Condensed Matter, 25, 135001. DOI:
     10.1088/0953-8984/25/13/135001. (A video showing annealing of the track: pyrochlore-track.gif,
     9 seconds, 66 MB).
- Fengyuan Lu, Jianwei
     Wang, Maik Lang, Marcel Toulemonde, Fereydoon Namavar, Christina
     Trautmann, Jiaming Zhang, Rodney C. Ewing and Jie Lian (2012)
     Amorphization of nanocrystalline monoclinic ZrO2 by swift heavy
     ion irradiation. Physical Chemistry Chemical Physics, 14, 12295 - 12300.
     DOI: 10.1039/C2CP41553D
- J.M. Zhang, J. Lian,
     F. Namavar, J.W. Wang, H. Haider, K. Garvin, and R.C. Ewing (2011)
     Nanosized Rutile (TiO2) Thin Film upon Ion Irradiation and
     Thermal Annealing. Journal of Physical Chemistry C, 115, 22755-22760, DOI:
     10.1021/jp2056283
- M. Lang, F. Zhang, J.
     Zhang, J. Wang, B. Schuster, C. Trautmann, R. Neumann, U. Becker, and R.C.
     Ewing (2009) Nanoscale manipulation of the properties of solids at high
     pressure with relativistic heavy ions. Nature Materials, 08, 793-797.
     doi:10.1038/nmat2528
 
Mineral  -
water interface:
 - J. Wang, A.G.
     Kalinichev, and R.J. Kirkpatrick (2009) Asymmetric hydrogen bonding and
     orientational ordering of water at hydrophobic and hydrophilic surfaces: a
     comparison of water/vapor, water/talc, and water/mica interfaces. Journal
     of Physical Chemistry C, 113, 11077 - 11085. DOI: 10.1021/jp9018316. (A
     video showing Al-13, Al-30 clusters: keggin-mov.mpg,
     16 seconds, 1.6 MB; al30-mov.mpg,
     8 seconds, 1.8 MB).
- J. Wang, J.R. Rustad,
     and William H. Casey (2007) Calculation of Water-Exchange Rates on Aqueous
     Polynuclear Clusters and at Oxide−Water Interfaces, 46, 2962-2964.
     doi:10.1021/ic070079+
- J. Wang, A.G. Kalinichev, and R.J. Kirkpatrick. (2006) Effects of substrate structure and composition on
     the structure, dynamics, and energetics of water at mineral surfaces: A
     molecular dynamics modeling study. Geochimica et
     Cosmochimica Acta, 70, 562-582. doi:10.1016/j.gca.2005.10.006
- J. Wang, A.G.
     Kalinichev, R.J. Kirkpatrick, and R.T. Cygan. (2005) Structure, energetics, and dynamics of water
     adsorbed on the muscovite (001) surface: a molecular dynamics simulation.
     Journal of Physical Chemistry B. 109, 15893 - 15905. DOI:
     10.1021/jp045299c
Classes Taught:
GEOL
4002 Computer Programming and Data Analysis in Earth Sciences
GEOL
4020 Introduction to Environmental Geochemistry - The
Principles
GEOL 7982 Advanced Topics in
Earth Materials 
GEOL 7900 Atomistic Modeling of
Earth Materials and Geochemistry 
 
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