2009
170 Y.Y. Su, R.M. Shemenski and R.A. Gerhardt, “Qualitative and quantitative identification of copper oxides,” Wire Journal International 42[8], 66-75 (2009). SILVER Award Winner. (DOI: 10.1002/sia.2863)
169. Cantwell G. Carson, Kenneth Hardcastle, Justin Schwartz, Xiaotao Liu, Christina Hoffmann, Rosario A. Gerhardt and Rina Tannenbaum, “Synthesis and structure characterization of copper terephthalate metal-organic frameworks,” J. EuropeanPhysical Chemistry 16, 2338-2343 (2009). Published online 21 Apr. 2009. (DOI: 10.1002/ejic.200801224)
168. Charles J. Capozzi, Ilia N. Ivanov, Salil Joshi and Rosario A. Gerhardt, “The effect of atmosphere on the optical properties of as-synthesized colloidal indium tin oxide,” Nanotechnology 20, 145701 (2009). Published online 18 Mar 2009. (DOI: 10.1088/0957-4484/20/14/145701)
167. J. Waddell, R. Ou, C.J. Capozzi, S. Gupta, C.A. Parker, R.A. Gerhardt, K. Seal, S.V. Kalinin and A.P. Baddorf, “Detection of percolating paths in polyhedral segregated network composites using electrostatic force microscopy and conductive atomic force microscopy,” Appl.Phys.Lett. 95, 233122 (2009). Published online 11 Dec. 2009. (DOI: 10.1063/1.3265742)
166. V.S.K.G. Kelekanjeri, L.K. Moss, R.A. Gerhardt and J. Ilavsky, “Quantification of the coarsening kinetics of g’ precipitates in Waspaloy microstructures with different prior homogenizing treatments,” Acta Materialia 57[16], 4658-4670 (2009). Published online 28 July 2009. (DOI: 10.1016/j.actamat.2009.06.019)
165. Brian D. Bertram And Rosario A. Gerhardt, “Room Temperature Properties of Electrical Contacts to Alumina Composites Containing Silicon Carbide Whiskers,” J. Applied Phys. 105, 074902 (2009). Published online 3 April 2009. (DOI: 10.1063/1.3086279)
164. Ricky L. Whelchel, V.S.K.G. Kelekanjeri, and R.A. Gerhardt, “Mechanical and electrical characterization in age hardened Waspaloy microstructures,” J. International Heat Treatment and Surface Engineering 3[1-2], 35-39 (2009). BODYCOTE Award Winner (DOI: 10.1179/174951409X12450558152589)
163. V.S.K.G. Kelekanjeri and R.A. Gerhardt, “Etch pit and γ′ precipitate evolution in controlled Waspaloy microstructures aged at 725, 800 and 875 °C ,” Acta Materialia 57[2], 616 – 627(2009). Published online 10 Nov. 2008. DOI: 10.1016/j.actamat.2008.10.010
162. Surajit Kumar and Rosario A. Gerhardt, “Numerical Study of the Electrical Properties of Insulating Thin Films Deposited on a Conductive Substrate,” COMSOL Users Workshop Proceedings, Boston, October 2009. (Link)
2008
161. Charles J. Capozzi, Zhi Li, Rosario A. Gerhardt and Robert J. Samuels, “Impedance Spectroscopy And Optical Characterization Of Polymethylmethacrylate/Indium Tin Oxide Nanocomposites With Three-Dimensional Voronoi Microstructures, J. Applied Physics 104[11], 114902/1-114902/10(2008). (DOI: 10.1063/1.3032512)
160. Chunqing Peng, Yonathan S. Thio and Rosario A. Gerhardt, “Conductive paper fabricated layer-by-layer assembly of polyectrolytes and ITO nanoparticles,” Nanotechnology 19, 505603 (10pp) (2008). (DOI: 10.1088/0957-4484/19/50/505603)
159. Richard A. Gilstrap, Charles J. Capozzi, Rosario A. Gerhardt and Christopher J. Summers, “Synthesis of a Nonagglomerated Indium Tin Oxide Nanoparticle Dispersion,” Advanced Materials 20, 4163–4166 (2008). Published online 29 Sept 2008. (DOI: 10.1002/adma.200702556)
158. R. Balaji Rao and Rosario A. Gerhardt, “Effect of Alkaline Earth Modifier Ion on the Optical, Magnetic and Electrical Properties of Lithium Nickel Borate Glasses,” Materials Chemistry and Physics 112[1], 186-197 (2008). Published online 7 July 2008. (DOI: 10.1016/j.matchemphys.2008.05.046)
157. Charles J. Capozzi and Rosario A. Gerhardt, “Correlation of the ac Electrical Conductivity and the Microstructure of PMMA/ITO Nanocomposites that Possess Phase-Segregated Microstructures,” J. Phys. Chem. C 112 [49], 19372-19382 (2008). Published online 12 Nov. 2008. (DOI: 10.1021/jp808595q)
156. R.Balaji Rao, Rosario A. Gerhardt and N. Veeraiah, “Spectroscopic Characterization, Conductivity and Relaxation Anomalies in the Li2O-MgO–B2O3 Glass System: Effect of Nickel Ions,” J. Phys.Chem. Solids 69, 2813–2826(2008). Published online 9 July 2008. (DOI: 10.1016/j.jpcs.2008.06.145)
155. V.S.K.G. Kelekanjeri and R.A. Gerhardt, “A closed-form solution for the computation of geometric correction factors for four-point resistivity measurements on cylindrical specimens” Measurement Sci. Technology 19, 025701(12pp) (2008). (DOI: 10.1088/0957-0233/19/2/025701)
154. V.S.K.G. Kelekanjeri and R.A. Gerhardt, “Computation of the Complex Impedance of a Cylindrical Conductor in an Ideal Two-probe Configuration,” Invited chapter for a book entitled Recent Advances in Modeling and Simulation, In-Tech Publications, pp. 85-110(2008).(DOI: 10.5772/5987)
153. V.S.K.G. Kelekanjeri and R.A. Gerhardt, “SPM-based Electrical Characterization of Aged Waspaloy Microstructures,” 2007 MRS Fall Meeting Proceedings, Boston, MA, USA, Volume 1025E (Issue Nanoscale Phenomena in Functional Materials by Scanning Probe Microscopy) Paper 1025-B13-10 (2008). (DOI: 10.1557/PROC-1025-B13-10)
2007
152. R.J. Narayan, C.M. Jin, N. Menegazzo, B. Mizaikoff, R.A. Gerhardt, M. Andara, A. Agarwal, Arvind; C.C. Shih, C.M. Shih, S.J. Ling and Y.Y. Su, “Nanoporous Hard Carbon Membranes for Medical Applications,” J. Nanosc. and Nanotech.7[4-5],1486-1493(2007). (DOI: 10.1166/jnn.2007.331)
151. P.M. Raj, D. Balaraman, V. Govind, I.R. Abothu, W. Lixi, R. Gerhardt, M. Swaminathan and R. Tummala, “Processing and Dielectric Properties of Nanocomposite Thin Film “Supercapacitors” for High-Frequency Embedded Decoupling,” IEEE Transactions on [see also Components, Packaging and Manufacturing Technology, Part A: Packaging Technologies]30[4], 569-578(2007). Published online 27 Nov. 2007. (DOI: 10.1109/TCAPT.2007.901736)
150. V.S.K.G. Kelekanjeri and R.A. Gerhardt, “Electrical characterization of aged Waspaloy microstructures,”Advanced Materials Research, 15-17, 876-881 (2007). Published online Feb. 2006. (DOI: 10.4028/www.scientific.net/AMR.15-17.876)
149. Cantwell G. Carson, R.A. Gerhardt and R. Tannenbaum, “Chemical Stability and Characterization of Rhodium-Diisocyanide Coordination Polymers, J. Phys. Chem. B 111, 14114-14120(2007). Published online 30 Nov. 2007. (DOI: 10.1021/jp0765852)
148. C.J. Capozzi and R.A. Gerhardt, “Novel Percolation Mechanism in PMMA matrix composites containing segregated ITO nanowire networks,” Adv .Functional Matls 17, 2515-2521(2007). Published online 7 Aug. 2007. (DOI: 10.1002/adfm.200600756)
147. V. S.Kumar G. Kelekanjeri and R.A. Gerhardt, “Electric field distribution within a metallic cylindrical specimen for the case of an ideal two-probe impedance measurement” J. Applied Physics 101, 044904(2007). Published online 22 Feb. 2007. (DOI: 10.1063/1.2405734)
146. C.C. Shi, C.M. Shih, K.Y. Chou, Y.Y Su, S.J. Lin and R.A. Gerhardt, “Mechanism of Degradation of AgCl coating on Biopotential Sensors,” J. Biomed.Mater.Res 82A[4], 872-883(2007). Published online 2 Mar 2007. (DOI: 10.1002/jbm.a.31140)
145. L.E. Levine, G.G. Long, R.A. Gerhardt, R. Ou, J. Ilavsky and C.A. Parker, “Self-Assembly of Carbon Black into Nanowires that Form a Conductive Three Dimensional Network,” Applied Phys. Lett 90, 014101-01403(2007). Republished in Virtual Journal of Nanotechnology. (DOI: 10.1063/1.2425011)
144. Surajit Kumar, Heungjoo Shin, Zhengchun Peng, Cantwell G. Carson, Zhong Lin Wang, Rosario A. Gerhardt, and Peter J. Hesketh, “Dielectrophoretic Characterization of SnO2 Nanobelts,” Solid-state sensors, actuators and Microsystems Conference. Transducers 2007 International, 1063-1066 (2007). (DOI: 10.1109/SENSOR.2007.4300317)
143. C.G. Carson, R.A. Gerhardt and R. Tannenbaum, “Dielectric Properties of [Rh(1,4-diisocyanobenzene) (cl)]n with respect to Moisture,” Polymer Preprints 96, 238 (2007).
2006
142. R.J. Narayan, W. Wei, C. Jin, M. Andara, A. Agarwal, R.A. Gerhardt, C.C. Shih, C.M. Shih, S.J. Lin, Y.Y. Su, R. Ramamurti and R.N. Singh, “Microstructural and biological properties of nanocrystalline diamond coatings,” Diamond and Related Matls. 15[11-12], 1935-1940 (2006). Published online 17 Oct. 2006. (DOI: 10.1016/j.diamond.2006.08.024)
141. M. Andara, A. Agarwal, D.Scholvin, R.A. Gerhardt, A. Doraiswamy, C.M. Jin, R.J. Narayan, C.C. Shih, C.M. Shih, S.J. Lin and Y.Y. Su, “Hemocompatibility of diamondlike carbon-metal composite thin films,” Diamond and Related Matls. 15[11-12], 1941-1948 (2006). Published online 30 June 2006. (DOI: 10.1016/j.diamond.2006.05.013)
140. Jianwen Xu, W. Florkowski, R.A. Gerhardt, K.S. Moon and C.P. Wong, “Shear Modulated Percolation in Carbon Nanotube Composites,” J.Phys.Chem.B 110[25], 12289-12292 (2006). Published online 6 June 2006. (DOI: 10.1021/jp061090i)
139. R. Ou, S. Gupta, C.A. Parker and R.A. Gerhardt, “Fabrication and Electrical Conductivity of Poly(methyl methacrylate) (PMMA)/Carbon Black (CB) Composites: Comparison between an ordered carbon black nanowire-like segregated structure and a randomly dispersed carbon black nanostructure” J. Phys. Chem. B 110 [45], 22362-22370(2006). Published online 17 Oct. 2006. (DOI: 10.1021/jp064498o)
138. S. Gupta, R.Ou and R.A. Gerhardt, “Effect of Fabrication Method on the Electrical Properties of Poly(acrylonitrile-co-butadiene-co-styrene)/Carbon Black Composites,” J.Electronic Matls. 35[2], 224-229(2006). (DOI: 10.1007/BF02692439)
137. D.S. Mebane, A.M. Gokhale and R.A. Gerhardt, “Trivariate, stereological length-radius-orientation unfolding derived and applied to alumina-silicon carbide whisker composites,” J.Am.Ceram.Soc. 89[2], 620-626(2006). Published online 28 Sept. 2005. (DOI: 10.1111/j.1551-2916.2005.00709.x)
136. D.S. Mebane and R.A. Gerhardt, “Interpreting Impedance Response of Silicon Carbide Whisker/Alumina Composites Through Microstructural Simulation,” J.Am.Ceram.Soc.
135. R. Ou, G. Cui, R.A. Gerhardt, and R.J. Samuels, “Effect of stretching on the structure and electrical conductivity of doped and undoped poly(phenylene vinylene) thin films,” Electrochimica Acta 51[8-9], 1728-1735(2006). Published online 31 Aug. 2005. (DOI: 10.1016/j.electacta.2005.02.140)
134. V.S. Kumar G. Kelekanjeri and R.A. Gerhardt, “Characterization of Microstructural Fluctuations in Waspaloy exposed to 760 °C for Times Up to 2500 h,” Electrochimica Acta 51[8-9], 1873-1880(2006). Published online 1 Sept. 2005. (DOI: 10.1016/j.electacta.2005.02.099)
133. C.J. Capozzi and R.A. Gerhardt, “Effect of Processing on the Microstructure and Electrical Conductivity of Hot Pressed PMMA/ITO Bulk Nanocomposites,” Extended Abstracts of the MRS Fall 2006 Meeting, Boston, MA. (DOI: 10.1557/PROC-977-0977-FF12-19)
132. V. Siva Kumar G. Kelekanjeri and Rosario A. Gerhardt, “Microstructure-Resistivity Correlations in Controlled Waspaloy Microstructures,” 0977-ff04-11 online version from 2006 fall meeting MRS proceedings (volume 977E). (DOI: 10.1557/PROC-977-0977-FF04-11)
131. Shantanu Talapatra and Rosario A. Gerhardt, “Optimization of the Electrical Conductivity of ABS Nanocomposites Filled with Carbon Black and Carbon Nanotubes,” 0977-ff11-04 online version from 2006 fall meeting MRS proceedings (volume 977E). (DOI: 10.1557/PROC-977-0977-FF11-04)
130. V. S.Kumar G. Kelekanjeri and R.A. Gerhardt, “Finite-element validation of electric field distribution inside a cylindrical conductor for an ideal two-probe impedance measurement”, COMSOL 2006 Users Conference Proceedings, Boston, MA, USA, 2006. (Link)
2005
129. S. Kumar, S. Rajaraman, R. A. Gerhardt, Z.L. Wang and P.J. Hesketh, “Tin Oxide Nanosensor Fabrication Using AC Dielectrophoretic Manipulation of Nanobelts,” Electrochimica Acta 51[5], 943-951(2005). Published online 11 Aug. 2005. (DOI: 10.1016/j.electacta.2005.04.068)
128. C.C. Shih, C.M. Shih, Y.Y. Su, R.A. Gerhardt and S.J. Lin, “The Interaction of Selected Semiconducting Biomaterials with Platelet-Rich Plasma and Whole Blood,” J. Biomed.Mater.Res. 74A, 325-337(2005). Published online 11 July 2005. (DOI: 10.1002/jbm.a.30255)
127. D.S. Mebane, S.I. Lieberman, A.M. Gokhale and R.A. Gerhardt, “Bivariate stereological unfolding procedure for randomly oriented chopped fibers or whiskers,” Acta Materialia 53[18], 4943-4953 (2005). Published online 8 Sept. 2005. (DOI: 10.1016/j.actamat.2005.07.012)
126. R. Ou, S. Gupta, C.A. Parker and R.A. Gerhardt, “Low Percolation Threshold Composites Consisting of PMMA and Carbon Black,” TMS Letters 2[4],117-118(2005). (Link)
125. R.A. Gerhardt, “Impedance Spectroscopy and Mobility Spectra,” Chapter in Encyclopedia of Condensed Matter Physics, Elsevier Press, 350-363 (2005). (DOI: 10.1016/B0-12-369401-9/00685-9)
124. C.H. Cho, S.K. Kelekanjeri G., R.A. Gerhardt and H. Koinuma, “Combinatorial Synthesis of (Al,Ti)N Thin Films,” Mat.Res.Soc.Symp.Proc. 894, 79-84 (2005). (DOI: 10.1557/PROC-0894-LL02-07)
123. D.S. Mebane and R.A. Gerhardt, “The Effect of Connectivity on the Impedance Response of Al2O3-SiCw Ceramic Matrix Composites,” E.P.D. Congress 2005, TMS Meeting in San Francisco, pp.157-163, Minerals, Metals and Materials Society, Warrendale, PA; computer Optical Disk(2005).
122. S. Lieberman, D.S. Mebane, A.M. Gokhale and R.A. Gerhardt, “Stereological Unfolding to Determine the Three-Dimensional Bivariate Size and Shape Distribution of TiB Whiskers in Ti-6Al-4V-2.9B,” E.P.D. Congress 2005, TMS Meeting in San Francisco, pp.139-143, Minerals, Metals and Materials Society, Warrendale, PA; computer Optical Disk(2005).