D. Steven Keller, Ph.D.

Research Highlights

Research Interests

  • Paper Physics
  • Paper Chemistry
  • Surface Chemistry
  • Materials Science

Research Projects

  • Paper Physics, Paper Chemistry
Portrait of Dr. Steven Keller


64G Engineering Building


  • Ph.D.—Paper Physics, State University of New York, College of Environmental Science and Forestry—1996
  • B.S.—Chemistry, Syracuse University—1980


Academic Experience

    • Associate Professor, Department of Chemical and Paper Engineering 2006–present
    • Fulbright Scholar – Visiting Professor, Institute for Paper, Pulp and Fibre Tech. Oct 13–Feb 14
    • Associate Professor, Faculty of Paper Science and Engineering 2001–2006
    • Assistant Professor, Faculty of Paper Science and Engineering 1996–2001
    • Lecturer, Research Support Specialist, Empire State Paper Research Institute 1990–1996 Associate Professor, Miami University, 2006-present

Professional Experience

  • Associate Research Chemist, Otisca Industries, 1982–1990
  • Regional Technical Service Coordinator and Assistant Chemist, Champion Chemicals, Inc., 1980–1982

Honors and Awards

  • 2013–2014 Fulbright U.S. Scholar – Austria
  • 2012 Excellence in Teaching Award – Society of Plastic Engineers (Miami ValleySection)
  • 2005 Best Paper (Session) INDA/TAPPI Nonwovens Technical Conf., St. Louis, MO (Wavelets)
  • 2005 Best Paper (Session and Conference) INDA/TAPPI Nonwovens Technical Conf., St. Louis, MO (Profilometry)
  • 1999 Recognition as one of TAPPI Finest Faculty Introduction to Paper Properties Short Course
  • 1993 Edwin C Jahn Fellowship for Research Excellence, Empire State Paper Research Institute, Syracuse, NY

Professional Societies

  • TAPPI: Research, Coating & Graphic Arts Divisions, Empire State Local Section Paper Physics: Secretary 2004–2005, Vice Chair, 2006–2007, chair 2008–2009
  • American Chemical Society: Cellulose, Colloids and Surfaces Divisions, Local Section Chair 2000 
  • International Association of Scientific Papermakers
  • Sigma Xi, Scientific Research Society 
  • Fiber Society 
  • Society of Rheology

Principal Publications


  • "Paper Drying Technology", Chapter 8 in Water in Paper: A Conservation Training Compendium, ed. G. Banik and I. Bruckle, Idziorek & Burgstaller, Fellach, Germany (2005).
  • "Applications of Thickness and Apparent Density Mapping by Laser Profilmetry to Characterize Paper Structure", Advances in Paper Science Technology, Trans 13th Fund. Res. Sym., 2005, Cambridge, UK.
  • "Determination of Fiber-Fiber Bond Properties", T. Uesaka, E. Retulainen, L. Paavilainen, R. E. mark, and D. S. Keller, in Handbook of Physical and Mechanical Testing of Paper and Paperboard, ed. R. E. Mark, (2001).
  • "Characterization of Non-Stationary Structural Non- Uniformities in Paper", M. Kellomaki, J. Pawlak, Y.-J. Sung and D. S. Keller, The Science of Papermaking, Trans 12th Fund. Res. Sym., 2001 Oxford, UK.
  • "Paper", D. S. Keller, The World Book Encyclopedia, Chicago, IL (2000).
  • "Surface Energetics of Calcium Carbonate Powders by Inverse Gas Chromatography (IGC) and Cleaved Crystals by Contact Angle Measurement", D. S. Keller and P. Luner, The Fundamentals of Papermaking Materials, Trans 11th Fund. Res. Symp. 1997. Cambridge, UK.

Peer Reviewed Articles

  • Keller, DS, Branca, DL, Kwon, O (2012). Characterization of nonwoven structures by spatial partitioning of local thickness and mass density.  JOURNAL OF MATERIALS SCIENCE, 47 (1), pp. 208-226. 
  • D. S. Keller, D. Branca and O. Kwon, “Characterization of Nonwoven Structures by Spatial Partitioning of Local Thickness and Density”, J. Mat. Sci. (DOI) 10.1007/s10853-011-23.
  • B. Hole, W. Burry, J. Schwarz and D.S. Keller “Surface energetics of bone mineral and synthetic hydroxyapatite using inverse gas chromatography”, J. Chrom. B. 879 (2011) 1847– 1850
  • Hasan and D. S. Keller, “Bipolar Spectral Analysis of Paper Formation using Wavelet Transforms”, J. Pulp and Paper Sci. 35(2) 74-79 (2009).
  • Y. –J. Sung and D. S. Keller, “Evaluation of the changes in paper structure by the laboratory wet pressing conditions”, J. Industrial Engineering Chem., 4(3), 328-332 (2008) .
  • Y. –J. Sung and D. S. Keller, “Local paper structural properties by non-contacting laser profilometry”, Appita Journal, 61(1), 28-34, 2008.
  • J.J. Pawlak and D. S. Keller, "The Compressive Response of a Stratified Fibrous Structure", Mechanics of Materials, 37, 1132-1142 (2005).
  • J.J. Pawlak and D. S. Keller, "Relationships between the local sheet structure and z-direction compressive characteristics", J. Pulp and Paper Science30 (9), 256-262 (2004).
  • D. S. Keller, M. Kellomaki, J. Pawlak, J. -E. Hagglund and N. Johansson, "Three Storage Phosphor Systems for B-radiographic Imaging Paper", Nordic Pulp and Paper Research Journal,19 (2) 170-175 (2004) .
  • J. J. Pawlak and D. S. Keller, "Measurement of the local compressive characteristics of polymeric film and web structure using micro-indentation", Polymer Testing22 (5), 515-528 (2003).
  • Y. -J. Sung and D. S. Keller, "Evaluation of Gloss Variation with a Novel Method", J. Korea TAPPI,34 (2), 73-83 (2002).
  • W. M. Burry and D. S. Keller, "Effects of dehydration on the apolar surface and energetics of inorganic paper fillers", J. Chromatography972 (2), 235-245 (200).
  • D. S. Keller and J. Pawlak, "B-Radiograhic Imaging of Paper Formation using Storage Phosphor Screens", J. Pulp and Paper Science27 (5), (2001).
  • J.J. Pawlak and D. S. Keller, "Analytical Technique for the Comparison of Paper Formation Imaging Methods", J. Pulp and Paper Science27 (4), (2001). 
  • D. S. Keller, P. Luner and J. Pawlak, " Characterization of the Spatial Variability of Paper Formation Using a Continuous Wavelet Transform", J. Korea TAPPI5 (88), (2000). 
  • D. S. Keller and P. Luner, "A Surface Energetics of Calcium Carbonates Using Inverse Gas Chromatography", Colloids and Surfaces A161:3:401-415, (2000).
  • D. S. Keller, J. Lewalle and P. Luner, "Analysis of Paper Variability Using the Continuous Wavelet Transform", Paperi ja Puu81 (7), 499-505 (1999).
  • D. S. Keller, J. Lewalle and P. Luner, "Wavelet Analysis of Simulated Paper Formation", Paperi ja Puu81 (6) 440-446 (1999).
  • D. S Keller and P. Luner, "An Instrument for Electron Beam and Light Transmission Imaging of Mass Distribution in Paper and Fibrous Webs", Rev. Sci. Instruments69(6), (1998).
  • T. Okayama, D. S. Keller and P. Luner, "The Wetting of Calcite Surfaces", J. Adhesion63, 231-252, (1997).
  • M. Pyda, M. Sidqi, D. S. Keller and P. Luner, "An Inverse Gas Chromatographic Study of Calcium Carbonate Treated with Alkylketene Dimer," TAPPI J., 76:4, (1993).
  • D. S. Keller and D. V. Keller, Jr., "The Effect of Particle Size on the Antithixotropic and Shear Thickening Properties of Coal-Water Dispersions", J. Rheology35:7, (1991).
  • D. S. Keller and D. V. Keller, Jr., "An Investigation of Shear Thickening and Anti-thixotropic Behavior of Concentrated Coal-Water Dispersions", J. Rheology34:7, (1990).

Refereed Proceedings

  • Douglas Troy, D. Steven Keller, James Kiper and Lei Kerr, “First Year Engineering: Exploring Engineering through the Engineering Design Loop,” pp. T1A1-T1A6, 38th ASEE/IEEE Frontiers in Education Conference, Saratoga Springs, NY, October 22 – 25, 2008. 


  • 2012 International Paper Physics Conference, Stockholm, 
  • 8th International Paper Coating Chemistry Symp. (2012), Stockholm “Biomorphic Silicon Carbide Ceramics from Fibrillated and Microfibrillated Wood Fibers”
  • 2011 Progress in Paper Physics: A Symposium, Graz Austria, “Mapping the Compressive Properties of Low Density Fibrous Materials”
  • 2010 Progress in Paper Physics: A Symposium, Montreal, “Mapping the Z-Direction Distribution of Mass of Paper Towel Grades using X-Ray Microtomography”
  • 2010 Progress in Paper Physics: A Symposium, Montreal, “Comparison of Structural Mapping of Paper Towels using Twin Laser Profilometry and X-Ray Microtomography”
  • D. S. Keller, “Paper: An Overview of the Material Science” Invited lecture, Stuttgart Academy for Fine Arts, Fellbach , Germany (2009). 
  • D. S. Keller, “Wet End Retention: Consideration of Counteracting Forces” Guest Lecture, Helsinki University of Technology: part of the TKK PapSat Short Course (2009).  
  • D. S. Keller,“ Twin Laser Profilometer and Transmission beta-Radiographic Measurements of Wet Creped Sheet Structures” Georgia Pacific Innovation Center, Neenah WIU, Invited Lecture (2009).
  • D. S. Keller, “Papermaking Research Symposium, “Contrasting Views of Paper Structure: A step through the looking glass” Invited Keynote Lecture, Kuopio, Finland (2009). 
  • D. S. Keller,“Spatial Partitioning of the Structural Properties of Tissue and Towel Grades”, D.S. Keller, D. Branca, and O. Kwon, in Advances in Paper Science Research, Trans. 14th Fund.Res.Sym, Oxford, UK (2009).
  • D. S. Keller, P. M. Caluwe, S. Rowland and D. Kpeglo, “Effect of Mid-Molecular Spacers in Tetra Functional Carboxylic Acids on Wet Strengthening of Cellulosic Fibrous Networks”, 7th International Paper Coating Chemistry Symp. Hamilton, ON, Canada June 10-12 (2009). 
  • D. Branca and D.S. Keller, “Analysis of the Structure of Embossed Tissue Papers” 2008 International Progress in Paper Physics Seminar, Espoo, Helsinki, Finland, June 1, 2008.
  • Hasan and D.S. Keller, “Bipolar Spectral Analysis of Paper Formation using Wavelet Transforms”, 2007 TAPPI/APPITA Int. Paper Physics Conf., Gold Coast Australia, May 7-10, 2007.