Skip Navigation
Penn State

Penn State Search >


Stephen J. Lombardophoto-Steve Lombardo

 

Associate Professor, Departments of Chemical Engineering and Mechanical & Aerospace Engineering, University of Missouri - Columbia

 

 

W2025 Lafferre Hall

University of Missouri-Columbia

Columbia, MO 65211

Phone: (573) 449-7983

FAX: (573) 884-5090

E-mail: Stephen J. Lombardo

Education:

 

  • Post-Doctoral Study, Surface Science and Catalysis, Max-Planck Institute, Berlin, Germany
  • Ph.D., Chemical Engineering, University of California - Berkeley, CA
  • B.S., Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA

 

Research Interests:

 

  • Binder removal by thermal and supercritical methods
  • Sintering of ceramics and high temperature reactions
  • Synthesis and processing of ceramics for capacitor applications

 

Professor Lombardo uses principles of transport phenomena (mass transfer, heat transfer, and fluid mechanics), along with reaction kinetics, to elucidate structure-processing-property relationships in ceramic processing. His work has focused on binder removal from green ceramic components, using both thermal methods and supercritical fluids. A specific focus has been on developing rapid thermal methods for binder removal from monolithic and multilayered green components. We use both experimental and modeling approaches to provide insight into such highly coupled processes. Another area of research involves the study of the high temperature gas-phase chemistry that accompanies the sintering of oxide materials, with special emphasis on materials for dielectric applications. In addition, we have examined particle dynamics during slip casting, slurry formulations, lamination, and synthesis and processing of dielectric materials for high voltage or high energy-density applications.

 

Technologies Impacted by Research:

 

  • Multilayered Ceramic Capacitors
  • Binder Removal
  • Lamination
  • Forming Operations
  • High Temperature Gas-Phase Chemistry during Sintering

 

Professional Experience:

 

2003-present Associate Professor, University of Missouri, Columbia, MO
1997-2003 Assistant Professor, University of Missouri, Columbia, MO
1996-1997 Research Group Leader, CeraMem Corporation, Waltham, MA
1992-1996 Research Associate, St. Gobain Corporation, Northboro, MA
1991-1992 Post-Doctoral Scholar, Fritz-Haber Institute of the Max-Planck Society, Berlin, Germany
1985-1990 Ph.D., Chemical Engineering, University of California, Berkeley, CA
1983-1985 Research Engineer, Norton Corporation, Worcester, MA
1979-1983 B.S., Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA

 

Awards:

 

2003-2007 University of Missouri College of Engineering Faculty Fellowship
2002 University of Missouri College of Engineering Outstanding Teaching Award

 

Selected Publications:

 

  1. Analytic Method for the Minimum Time for Binder Removal from Three-Dimensional Porous Green Bodies, S. J. Lombardo and Z. C. Feng, Journal of Materials Research 18 (2003) 2717-2723.
  2. Supercritical Extraction with Carbon Dioxide and Ethylene of Poly(vinyl butyral) and Dioctyl Phthalate from Multilayer Ceramic Capacitors, R. V. Shende and S. J. Lombardo, Journal of Supercritical Fluids 23 (2002) 153-162.
  3. Solid State Synthesis, Processing, and Electrical Properties of Sr(TixZr1-x)O3(0?x?1) Ceramics for High Voltage Applications, R. V. Shende, D. S. Krueger, and S. J. Lombardo, Journal of Ceramic Processing Research (2003) 191-196.
  4. Effect of Porosity on the Electrical Properties of Y2O3-doped SrTiO3 Internal Boundary Layer Capacitors, D. S. Krueger, R. V. Shende, and S. J. Lombardo, Journal of Applied Physics 95 (2004) 4310-4315.