Jonathan W. Bender - Physics
Jonathan W. Bender - Physics
Jonathan W. Bender - Physics
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<strong>Jonathan</strong> W. <strong>Bender</strong><br />
NC State University<br />
Department of <strong>Physics</strong> W (919) 515-1330<br />
Centennial Campus Box 7518 H (919) 468-9000<br />
Raleigh, NC 27695-7518<br />
e-mail: jwbender@unity.ncsu.edu<br />
OBJECTIVE<br />
A tenure-track position with a university which focuses on excellence in teaching and research, and which<br />
has an infrastructure which facilitates multidisciplinary and industrial-academic collaboration.<br />
QUALIFICATIONS SUMMARY<br />
Broad and thorough technical expertise gained through nine years of industrial and two years crossdisciplinary<br />
post-doctoral experience. Proven ability to solve complex, multidisciplinary technical<br />
problems, teach, mentor students, and build teams.<br />
Technical experience:<br />
Equipment experience:<br />
• Rheology – structure/property relationships • Atomic force & scanning tunneling microscopy<br />
• Lubrication and tribology • Quartz crystal microbalance techniques<br />
• Surface and colloid science • Ultrahigh vacuum (UHV) systems<br />
• Field-controllable “smart” materials • Rheometers<br />
• Semiconductor LEDs • Light scattering, birefringence, dichroism<br />
• Magnetism and magnetic materials • Neutron scattering<br />
Industrial experience includes technical marketing, proprietary positioning, and joint development<br />
agreements.<br />
EDUCATION<br />
Ph.D. Chemical Engineering, University of Delaware, Newark, DE 1995<br />
"Rheo-optic investigations of the microstructure of model colloidal suspensions"<br />
Advisor: Norman J. Wagner Committee: Eric Kaler, Annette Shine, George Watson<br />
B.S. Chemical Engineering with Distinction, Univ. of Virginia, Charlottesville, VA 1986<br />
“Effect of shear rate on the growth of Absidia Coerulia in a continuous stirred tank reactor”<br />
PROFESSIONAL/ACADEMIC EXPERIENCE<br />
POST-DOC, Dept of <strong>Physics</strong>, NCSU, Raleigh, NC<br />
2001-present<br />
RESEARCH ASSOCIATE, Analytical Instrumentation Facility, NCSU, Raleigh, NC 2000-2001<br />
STAFF SCIENTIST, Lord Corporation, Cary, NC 1996-1999<br />
FORMULATION SCIENTIST, Exxon Chemical, Linden, NJ 1994-1996<br />
DOCTORAL CANDIDATE, University of Delaware, Newark, DE 1990-1994<br />
PROCESS ENGINEER, Air Products and Chemicals, Inc., Allentown, PA 1986-1990<br />
COLLOID AND SURFACE SCIENCE CONTRIBUTIONS<br />
Nanoscale surface science<br />
• Currently studying nanoscale tribochemistry of organic lubricants on bare metal films using UHV<br />
scanning tunneling microscopy (STM)/quartz crystal microbalance (QCM) techniques.<br />
• Currently constructing a microelectromechanical system (MEMS) friction tester.<br />
• Developed an in-air scanning tunneling microscopy (STM) technique to locate p-n junctions to
<strong>Jonathan</strong> W. <strong>Bender</strong> October, 2001 page 2 of 4<br />
nanometer scale resolution in GaN-based semiconductors.<br />
• Developed techniques to selectively etch materials in GaN-based semiconductors using a<br />
photoelectrochemical process.<br />
• Discovered that GaN oxidizes under the strong electric fields present during STM scanning.<br />
Colloidal suspension rheology<br />
• Discovered that electric fields suppress the shear thickening of concentrated suspensions. Received<br />
NSF GOALI funding for continued study.<br />
• Characterized flowing colloidal suspension microstructure using light and neutron scattering to verify<br />
statistical mechanical theories of rheological behavior.<br />
• Developed a new stress-optical relation between optical dichroism and the thermodynamic shear<br />
stress. Paper cited 43 times.<br />
• Experimentally verified the microstructural origins of shear thinning and shear thickening in<br />
concentrated colloidal suspensions. Paper cited 47 times.<br />
Lubricant formulation and tribology<br />
• Clearly demonstrated that rampant oxidative wear led to early magnetorheological (MR) fluid failure in<br />
aggressive energy dissipation environments.<br />
• Investigated metallurgical coatings technologies to provide a high friction, low wear interface for MR<br />
fluid magnetic powders.<br />
• Investigated/identified mechanisms of silicone fluid polymerization in aggressive shearing<br />
environments.<br />
• Conceptualized/designed experiments to relate lubricant frictional and viscometric properties to metal<br />
belt transmission (CVT) noise, oil retention, wear, and torque transfer.<br />
BUSINESS CONTRIBUTIONS<br />
Magnetorheological (MR) fluids<br />
• Solved MR fluid durability problems using alternative metallurgies, increased the life of one emerging<br />
product 10-fold; product generating $300K/year.<br />
• Determined commercial feasibility of a MR-controlled clutch in joint effort with major automotive supplier.<br />
• Showcased MR technology by designing/developing 5 custom machines to evaluate application feasibility<br />
and improve formulations.<br />
• Identified best combination of mechanical design/fluid formulation for seal-less MR devices, invented new<br />
fluid-retentive matrices.<br />
Automotive Transmission Fluids (ATF)<br />
• Reformulated additive package for Ford factory-fill transmission fluid, extended transmission durability<br />
and eliminated shudder. Exxon won $50 million in business.<br />
• Developed new ASTM test for measuring air entrainment in automotive transmission fluids, a common<br />
cause of automotive fires, saving Exxon $150,000/year in failed transmission tests.<br />
Plant Commissioning<br />
• Supervised 50 technicians and operators in the commissioning of 7 new industrial gas and first-of-a-kind<br />
ultra-high purity gas plants (~ $750 million in capital); trained operators, verified safe operability.<br />
• Operated biological waste-water treatment pilot plants.<br />
TEACHING/TRAINING/MENTORING EXPERIENCE<br />
• Lectured NCSU undergraduates in Chemical Engineering Thermodynamics (2001)<br />
• Lectured NCSU doctoral candidates in basic colloid rheology (1999)
• Mentored 3 recent engineering graduates (1997-2000)<br />
• Hired and trained 3 engineering interns (1996-1999)<br />
• Designed two rheology projects for grad students (1996-1998)<br />
• Managed 4 research technicians (1995-1999)<br />
• Teaching Assistant for Statistical Mechanics course (1994)<br />
<strong>Jonathan</strong> W. <strong>Bender</strong> October, 2001 page 3 of 4<br />
PATENT "Field-induced shear thickening fluids," J.W. <strong>Bender</strong>, patent submitted 2000<br />
PUBLICATIONS<br />
J. W. <strong>Bender</strong> and J. Krim, “Nanotribology: Experimental Techniques and Applications,” in Encyclopedia of<br />
Nanoscience and Nanotechnology, ed. H. Nalwa, in preparation<br />
M. Abdelmaksoud, J. W. <strong>Bender</strong>, J. Krim, “Nanotribology of a vapor-phase lubricant: A quartz crystal<br />
microbalance study of tricresylphosphate (TCP) uptake on iron and chrome,” in preparation<br />
J. W. <strong>Bender</strong> and J. Krim, “Applications of the Piezoelectric Quartz Crystal Microbalance to Microdevice<br />
Development,” in Micro- and Nano-Scale Diagnostic Techniques, ed. K. Breuer, submitted (2001)<br />
J. W. <strong>Bender</strong> and P. E. Russell, “Combined AFM and STM of cross-sectioned GaN LEDs,” submitted to<br />
Scanning (2001)<br />
J. W. <strong>Bender</strong>, S. S. Shenoy, and N. J. Wagner, “Electric field effects on the shear thickening transition of<br />
concentrated colloidal suspensions,” submitted to Phys. Rev. Lett. (2001)<br />
M. R. Jolly, J. W. <strong>Bender</strong>, and J. D. Carlson, “Properties and applications of commercial<br />
magnetorheological fluids,” J. Intel. Mat. Sys. T. Str. 10(1) 5-13 (1999)<br />
M. R. Jolly, J. W. <strong>Bender</strong>, and R. T. Mathers, “Indirect measurements of microstructure development in<br />
magnetorheological fluids,” Int. J. Mod. Phys. B 13(14-16) 2036-2043 (1999)<br />
J. W. <strong>Bender</strong> and N. J. Wagner, “Reversible shear thickening in monodisperse and bidisperse colloidal<br />
suspensions,” J. Rheol. 40(5) 899-916 (1996)<br />
R. J. Butera, M. S. Wolfe, J. W. <strong>Bender</strong>, N. J. Wagner, “Formation of a highly ordered colloidal<br />
microstructure upon flow cessation from high shear rates,” Phys. Rev. Lett. 77(10) 2117-2120 (1996)<br />
J. W. <strong>Bender</strong> and N. J. Wagner, “Optical measurements of the contribution of colloidal forces to the<br />
rheology of concentrated suspensions,” J. Coll. Interf. Sci. 172, 171-184 (1995)<br />
J. W. <strong>Bender</strong> and N. J. Wagner, “Shear thinning properties of dense suspensions: rheology and flow<br />
dichroism,” MRS Proceedings 1993<br />
PRESENTATIONS<br />
M. Abdelmaksoud, J. W. <strong>Bender</strong>, and J. Krim, “Nanotribology of a vapor-phase lubricant: A quartz crystal<br />
microbalance study of tricresylphosphate (TCP) uptake on iron and chrome,” AIChE Annual Meeting,<br />
Reno, NV 2001<br />
J. W. <strong>Bender</strong> and P. E. Russell, “Combined AFM and STM of cross-sectioned GaN LEDs,” AIChE Annual<br />
Meeting, Reno, NV 2001<br />
J. W. <strong>Bender</strong>, “Insight into mechanical limitations of MR fluid metal particles; a case for hard-casing,”<br />
Annual Technology Review, Lord Corporation 1999<br />
J. W. <strong>Bender</strong>, “Prospects of the use of water atomized iron particles in MR fluid dampers,” Annual<br />
Technology Review, Lord Corporation 1998<br />
J. W. <strong>Bender</strong> and N. J. Wagner, “Reversible shear thickening in monodisperse and bidisperse colloidal<br />
suspensions,” 68 th Annual Meeting Society of Rheology, Galveston, TX 1997<br />
J. W. <strong>Bender</strong> and R. F. Watts, “Technical issues in developing a lubricating fluid for continuously variable
transmissions,” Annual Technology Review, Exxon Chemical 1995<br />
<strong>Jonathan</strong> W. <strong>Bender</strong> October, 2001 page 4 of 4<br />
J. W. <strong>Bender</strong> and N. J. Wagner, "Origin of shear-thickening in concentrated colloidal suspensions," 66th<br />
Annual Meeting of the Society of Rheology, Philadelphia PA 1994<br />
J. W. <strong>Bender</strong> and N. J. Wagner, "The rheology of TMV/water as a model rod-like colloidal suspension,"<br />
68th ACS Colloidal Surface Science Symposium, Stanford CA 1994<br />
J. W. <strong>Bender</strong> and N. J. Wagner, "Rheo-optical studies of the dynamics of rod-like colloidal particles under<br />
shear," AIChE Annual Meeting, St. Louis, MO 1993<br />
J. W. <strong>Bender</strong> and N. J. Wagner, "Experimental measurements of the role of colloidal forces in<br />
concentrated colloidal suspension," 65th Annual Meeting of the Society of Rheology, Boston, MA 1993<br />
J. W. <strong>Bender</strong> and N. J. Wagner, "Microstructure and shear-thinning rheology of dense suspensions by<br />
light polarization spectroscopy," 67th ACS Colloidal Surface Science Symposium, Toronto, Canada 1993<br />
J. W. <strong>Bender</strong> and N. J. Wagner, "Rheo-optics of monodispersed, dense colloidal suspensions," AIChE<br />
Annual Meeting, Miami Beach, FL 1992<br />
AWARDS AND PROFESSIONAL ACTIVITIES<br />
Chaired MR and ER Materials session of the Society of Rheology Meeting (1998)<br />
Peer-reviewed four papers submitted to Journal of Rheology (1996-2001)<br />
President, University of Delaware’s Graduate ChE student association (1993-1994)<br />
Member AIChE, ACS, Society of Rheology<br />
Amoco Fellowship, Univ. Delaware (1990-1991)<br />
Laird Fellowship Candidate, Univ. Delaware (1991)<br />
Quality Award, Air Products (1988)<br />
David Lee Preddy Award in ChE, Univ. Virginia (1986)<br />
First place mid-Atlantic AIChE thesis competition (1986)<br />
Dow Outstanding Junior Award in ChE, Univ. Virginia (1985)