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Alexandra Navrotsky
Professor

Email: navrotsk@chem.ucdavis.edu
Phone:(530) 752-3292

PhD, University of Chicago, 1967.
Alfred P. Sloan Fellow (1973).
Mineralogical Society of America Award and Fellow (1981).
American Geophysical Union Fellow (1988).
Member, National Academy of Sciences (1993).
President, Mineralogical Society of America (1992-1993).
Doctor Honoris Causa, University of Uppsala, Sweden (1995).
Ross Coffin Purdy Award, American Ceramic Society Fellow (1995).
Geochemical Society Fellow (1997).
Alexander M. Cruickshank Award, Gordon Research Conference (2000).
Hugh Huffman Memorial Award, The Calorimetry Conference (2000).
Ceramic Educational Council Outstanding Educator Award (2000).
American Ceramic Society Fellow (2001).
American Ceramic Society, Best Paper Award of the Nuclear and Environmental Technology Division (2001).
Benjamin Franklin Medal in Earth Science (2002).
Highly Cited Researchers Award, ISI Thomson Scientific (2002).
Fellow, The Minerological Society (Great Britain) (2004).
Urey Medal, European Association of Geochemistry (EAG) (2005).
Spriggs Phase Equilibria Award, American Ceramic Society(ACerS)(2005).
Rossini Award, International Association of Chemical Thermodynamics (IACT)(2006).
Harry H. Hess Medalist, American Geophysical Union (AGU)(2006).

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Principal Research Interests
Alexandra Navrotsky's research interests lie at the intersection of solid state chemistry, geochemistry, and materials science. The fundamental question that gives unity to a diverse set of studies (over two hundred papers) on materials ranging from oxide superconductors to silicates deep in the Earth's mantle is "why does a given structure form for a specific composition, pressure and temperature?" The "why" involves relating thermodynamic properties, structural parameters, and chemical bonding in a systematic fashion. At Arizona State University in the 1970's and 80's, at Princeton from 1985 to 1997, and at UC Davis since 1997, Navrotsky has built a unique high temperature calorimetry facility, designed and improved on the instrumentation, and developed and applied methods for measuring the energetics of crystalline oxides, of glasses, amorphous, and nanophase and porous materials, of hydrous phases and carbonates, and, more recently, of nitrides and oxynitrides. The thermochemical data obtained are essential to understanding materials compatibility and reactivity in both technological and geological application, but, more fundamentally, the energetics offer insight into chemical bonding, order-disorder reactions, and phase transitions.
Representative Publications

”Membranes for H 2 Generation from Nuclear Powered Thermochemical Cycles”, T. M. Nenoff, A. Ambrosini, T. J. Garino, K. Leung, M. Axness, F. Gelbard, R. G. Iyer, and A. Navrotsky, Sandia Report, SAND2006-7081 (2006).

“Energetics of Defect Flourite and Pyrochlore Phases in Lanthanum and Gadolinium Hafnates”, S. V. Ushakov, A. Navrotsky, J. A. Tangeman, and K. B. Helean, J. Am. Ceram. Soc., 90, 1171-1176 (2007).

“Calorimetric Measurements of Energetics of Defect Interactions in Fluorite Oxides”, A. Navrotsky, P. Simoncic, H. Yokokawa, W.Q. Chen, and T. Lee, Faraday Discuss., 134, 171-180 (2007).

“Kinetic Model for TiO 2 Polymorphic Transformation from Anatase to Rutile”, G. Madras, B. McCoy, and A. Navrotsky, J. Am. Ceram. Soc., 90, 250-255 (2007).

“Enthalpy of Water Adsorption and Surface Enthalpy of Lepidocrocite (g-FeOOH)”, J. Majzlan, L. Mazeina, and A. Navrotsky, Geochim. Cosmochim. Acta , 71, 615-623 (2007).

“Energetics of Cerium-Zirconium Substitution in the xCe 0.8Y 0.2O 1.9-(1- x)Zr 0.8Y 0.2O 1.9 System”, W. Chen, A. Navrotsky, Y. P. Xiong, and H. Yokokawa, J. Am. Ceram. Soc., 90, 584-589 (2007).

“Heats of Formation for Several Crystalline Polymorphs and Pressure-Induced Amorphous Forms of AMo 2O 8 (A = Zr, Hf) and ZrW 2O 8”, T. Varga, C. Lind, A. P. Wilkinson, H. Xu, C. E. Lesher, and A. Navrotsky, Chem. Mater., 19, 468-476 (2007).

“Calorimetry of Nanoparticles, Surfaces, Interfaces, Thin Films, and Multilayers”, A. Navrotsky, J. Chem. Thermodyn., 39, 2-9 (2007).

“Enthalpy of Water Adsorption and Surface Enthalpy of Goethite (a-FeOOH) and Hematite (a-Fe 2O 3)”, L. Mazeina and A. Navrotsky, Chem. Mater., 19(4), 825-833 (2007).

“Thermodynamic Properties of Soddyite from Solubility and Calorimetry Measurements”, D. Gorman-Lewis, L. Mazeina, J. Fein, J. Szymanowski, P. Burns, and A. Navrotsky, J .Chem.Thermodyn., 39, 568-575 (2007).

“Enthalpies of Formation of Rare Earth Orthovanadates, REVO 4”, M. Dorogova, A. Navrotsky, and L. A. Boatner, J. Solid State Chem., 180, 847-851(2007).

“Application of Calorimetry on a Chip to High Pressure Materials”, A. Navrotsky, M. Dorogova, F. Hellman, D. W. Cooke, B. L. Zink, C. E. Lesher, J. Boerio-Goates, B. F. Woodfield, and B. Lang, Proc. Natl. Acad. Sci., 104(22), 9187-9191 (2007).

“Synthesis of Nitrate Sodalite: An In Situ Scanning Calorimetric Study”, Q. Liu and A. Navrotsky, Geochim. Cosmochim. Acta, 71(8), 2072-2078 (2007).

“Thermochemistry and Melting Properties of Basalt”, M. A. Bouhifd, P. Besson, P. Courtial, C. Gérardin, A. Navrotsky, and P. Richet, Contrib. Mineral. Petrol., 153, 689-698 (2007).

“Systematics of Phase Transition and Mixing Energetics in Rare Earth, Yttrium and Scandium Stabilized Zirconia and Hafnia”, P. Simoncic and A. Navrotsky, J. Am. Ceram. Soc., 90(7), 2143-2150 (2007).

“Elastic Properties of Yttrium-Doped BaCeO 3 Perovskite”, J. Zhang, Y, Zhao, H. Xu, B. Li, D.J. Weidner, and A. Navrotsky, Applied Physics Letters 90(16), 161903/1-161903/3 (2007).

“Compressibility and Pressure-Induced Amorphization of Guest-Free Melanophlogite: an in situ Synchrotron X-ray Diffraction Study”, H. Xu, J. Zhang, Y. Zhao, G.D. Guthrie, D.D. Hickmott, and A. Navrotsky, American Mineralogist 92(1), 166-173 (2007).