Department of Chemical Engineering at the University of Texas at Austin go to home page university of texas at austin college of engineering U T direct
Hugo Steinfink, PhD
The T. Brockett Hudson Professor


photo of Hugo Steinfink
Office: CPE 9.146 Mailing Address:
Phone: (512) 471-5233 The University of Texas at Austin
Fax: -- Deptartment of Chemical Engineering
Email:   1 University Station C0400
UT Mail: C0400 Austin, TX 78712-0231

Research or class webpage

Educational Qualifications:
Ph.D., Polytechnic Institute of Brooklyn (1954)
Department of Chemical Engineering Excellence in Teaching (1992); Faculty Leadership Award in Chemical Engineering (1993); Chairman, American Chemical Society, Central Texas Section (1966); Associate Editor, The American Mineralogist (1970-1972); Member U. S. National Committee for Crystallography, National Research Council, National Academy of Science (1973-1979); Secretary-Treasurer, U. S. National Committee for Crystallography (1980-1982); Co-editor, Acta Crystallographic (1984 -1993); Board Member, American Institute of Physics (1989-1995); Vice-President and President-elect, American Crystallographic Association (1994); President, American Crystallographica Association (1995); Past President, American Crystallographic Association (1996)

Focus:
Crystal chemistry and physical properties of inorganic oxides, chalcogenides, and intercalation compounds


State-of the-art x-ray powder diffractometer.

Research:
Recent research concentrated on the synthesis of Ruddlesden-Poper phases, An+1BnO3n+1, n = 3, where A = La and Sr, B = Transition metal. The crystal structures were determined by x-ray and neutron diffraction The influence of oxygen vaca ncies and isomorphous replacement of elements in the A and B sites on the electrical and magnetic properties were studied. Clay minerals such as montmorillonite consist of aluminosilicate sheets that are weakly held together by interlayer cations. We have introduced Fe-polyoxo cations into the gallery space and investigated the magnetic properties of these intercalates betwee n 2 K and room temperature. Complex oxides of vanadium and phosphorous, combined with Bi, Pb, etc. are of interest because they display anion conductivities and can be used as oxygen sensors. Their syntheses and crystal structure determinations are currently under investigation.

Selected Publications

  • "The Crystal Chemistry and Physical Properties of the Triple Layer Perovskite Intergrowths LaSr3Fe3O10- and LaSr3Fe3-xAlxO10-", J. Solid State Chemistry, 103, 1 -15 (1993) (with J, Y. Lee, J. S. Swinnea, W. M. Reiff, S. Pei and J. D. Jorgensen)
  • " Superconducting Ba0.6K0.4BiO3: Thin Film Preparation by RF Magnetron Sputtering", J. Mater. Res. 8, 1798 - 1804 (1993) (with C. J. Hou, L. Rabenberg, C. Hilbert and H. Kroger)
  • " Synthesis and Magnetic Properties of Iron Pillared Montmorillonites", New Trends in Magnetism, Magnetic Materials, and their Applications, 347 - 357. Edited by J. L. Moran-Lopez and J. M. Sanchez, Plenum Press, New York, (1994) (with L. Govea)
  • " Preparation and the Crystal Structure of Ten-Layer Ba5Fe4NiO13.5", J. Solid State Chem. 121, 133 - 137 (1996)(with H. Takizawa)
  • " Superconductivity, Theory and Applications" Encyclopedia of Chemical Processing and Design, 511 - 525, Editors: John J. McKetta and Guy E. Weismantel, Marcel Dekker, Inc. New York (1996)
  • " Synthesis, Structure, and Properties of LaSr3Fe3-xGaxO10- : An Intermediate Fe3+ Spin State", J. Solid State Chem. 122, 390 - 393 (1996) (with B. Shankar)

 

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