Dmitri Dikin, Temple University Rate Professors

Dmitri A. Dikin

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School: Temple University
Campus:
Department: Engineering
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Location: 1801 N Broad St
Philadelphia, PA - 19122
Dates at Temple University: May 2014 - June 2018
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Biography

Temple University - Engineering

Research Associate Professor, Temple University, Philadelphia, PA
Dmitriy (Dima)
Dikin
Philadelphia, Pennsylvania
Seeking R&D consulting or senior scientist position within nanotechnology or advanced materials company.
Contact me at ddikin@gmail.com to discuss opportunities.

Keywords: nanocomposites, graphene, carbon nanotubes, nanowires, nanoparticles, carbon black, silica, polymer composites, SEM, FIB, EDX, AFM, confocal optical, Raman, PPMS, MPMS, SQUID, impedance spectroscopy, microwave, thermometry, thermopower, electrical-, thermal- conductivity, nanomechanics, photo-, e-beam- lithography, piezo actuators, fine machining, CVD, UHV, thin films, cryogenics, LN2 cooling, 3He-4He dilution, superconductivity, HTSC, complex oxides.

Professional Experience:
• Nano structures: graphene, carbon nanotubes, carbon black, silica. Structural, physical and chemical properties.
• Polymer nano composites: smart composites for applications in electronic, thermal, optical and structural devices.
• Instrumentation development: testing platform for integrated study of nanostructures. New tools and methods for biomedical research.
• Scanning electron microscopy and also optical and scanning probe microscopy with nanoscale resolution.

Experience

Temple University
Research Associate Professor
Developing electron microscopy facility
Teaching Materials Science for Engineers
Northwestern University
Research Associate Professor
Department of Mechanical Engineering
Department of Physics and Astronomy

80+ publications

• Polymer nanocomposites
• Electronics and mechanics of nano carbon (CNTs, graphene)
• Mesoscopic superconductivity
• Analysis and microscopy (SEM, SPM, etc) with nano resolution
• Lithography and other nano technologies

Education

Inst. for Low Temperature Physics and Eng.
Ph.D.
Physics, Superconductivity
Kharkov State Polytechnic University (ХПИ)
MS
Cryogenic Engineering

Publications

Utilizing real and statistically reconstructed microstructures for the viscoelastic modeling of polymer nanocomposites
Composites Science and Technology
In this paper, we present a new approach to finite element modeling of a nanoparticle filled polymer system that utilizes the actual and statistically reconstructed microstructures of the material. Typically, description of polymer nanocomposites for microstructure generation is difficult given the high degrees of freedom inherent in the location of each nanoparticle. The lack of true microstructure utilization hinders our ability to understand the interaction between the nanoparticle and polymer, which cannot easily be deconvoluted from experiments alone. We consider here a material system of carbon black particle fillers dispersed in synthetic natural rubber. Scanning Electron Microscope (SEM) images are first taken of these carbon black-rubber composites samples and then transformed into binary images. The binary images from either a microscope image of original specimens or microstructure reconstruction according to the material statistical description are used as geometric inputs for the finite element model along with experimentally determined viscoelastic properties of pure rubber. Simulations on the viscoelastic properties of the rubber composites are performed through ABAQUS. The simulated results are then compared with composite viscoelastic data in both frequency and temperature domains. The comparison shows that for the specific rubber/CB composite discussed in this paper, the thickness being 25 nm and relaxation time being 32 times that of matrix polymer provide the best approximations for the properties of interfacial polymer.
Utilizing real and statistically reconstructed microstructures for the viscoelastic modeling of polymer nanocomposites
Composites Science and Technology
In this paper, we present a new approach to finite element modeling of a nanoparticle filled polymer system that utilizes the actual and statistically reconstructed microstructures of the material. Typically, description of polymer nanocomposites for microstructure generation is difficult given the high degrees of freedom inherent in the location of each nanoparticle. The lack of true microstructure utilization hinders our ability to understand the interaction between the nanoparticle and polymer, which cannot easily be deconvoluted from experiments alone. We consider here a material system of carbon black particle fillers dispersed in synthetic natural rubber. Scanning Electron Microscope (SEM) images are first taken of these carbon black-rubber composites samples and then transformed into binary images. The binary images from either a microscope image of original specimens or microstructure reconstruction according to the material statistical description are used as geometric inputs for the finite element model along with experimentally determined viscoelastic properties of pure rubber. Simulations on the viscoelastic properties of the rubber composites are performed through ABAQUS. The simulated results are then compared with composite viscoelastic data in both frequency and temperature domains. The comparison shows that for the specific rubber/CB composite discussed in this paper, the thickness being 25 nm and relaxation time being 32 times that of matrix polymer provide the best approximations for the properties of interfacial polymer.
Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide
Carbon
Top 50 most highly cited articles from 50 years of Carbon. http://www.sciencedirect.com/science/article/pii/S0008622307000917 http://www.journals.elsevier.com/carbon/news/top-50-most-highly-cited-articles-from-50-years-of-carbon/ 1. Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide Stankovich, S., Dikin, D.A., Piner, R.D., Kohlhaas, K.A., Kleinhammes, A., Jia, Y., Wu, Y., Nguyen, S.T., Ruoff, R.S. (2007) Carbon, 45 (7), pp. 1558-1565.