122 citations · 388 across the 10 of their papers we have counts for
10 papers
Modeling of polymer phase transition from crystalline to conformationally disordered phase
V. V. Atrazhev, D. V. Dmitriev, V. I. Sultanov
A physics-based analytical model describing the phase transition from crystalline to conformationally disordered (condis) crystalline phase is developed. In the model, the free ene…
Molecular dynamics simulation of chains mobility in polyethylene crystal
V. I. Sultanov, V. V. Atrazhev, D. V. Dmitriev +1
The mobility of polymer chains in perfect polyethylene (PE) crystal was calculated as a function of temperature and chain length through Molecular dynamics (MD) in united atom appr…
The model of stress distribution in polymer electrolyte membrane
Vadim V. Atrazhev, Tatiana Yu. Astakhova, Dmitry V. Dmitriev +4
An analytical model of mechanical stress in a polymer electrolyte membrane (PEM) of a hydrogen/air fuel cell with porous Water Transfer Plates (WTP) is developed in this work. The…
Modeling of durability of polyelectrolyte membrane of O2/H2 fuel cell
Vadim V. Atrazhev, Sergei F. Burlatsky
In this paper, we discuss critical aspects of the mechanisms and features of polymer proton exchange membrane (PEM) degradation in low-temperature H2/O2 fuel cell. In this paper, w…
A Carbon Corrosion Model to Evaluate the Effect of Steady State and Transient Operation of a Polymer Electrolyte Membrane Fuel Cell
Arun Pandy, Zhiwei Yang, Mallika Gummalla +4
A carbon corrosion model is developed based on the formation of surface oxides on carbon and platinum of the polymer electrolyte membrane fuel cell electrode. The model predicts th…
The Impact of Thermal Conductivity and Diffusion Rates on Water Vapor Transport through Gas Diffusion Layers
S. F. Burlatsky, V. V. Atrazhev, M. Gummallaa +2
Water management in a hydrogen polymer electrolyte membrane (PEM) fuel cell is critical for performance. The impact of thermal conductivity and water vapor diffusion coefficients i…
A Mathematical Model for Predicting the Life of PEM Fuel Cell Membranes Subjected to Hydration Cycling
S. F. Burlatsky, M. Gummalla, J. O'Neill +4
Under typical PEM fuel cell operating conditions, part of membrane electrode assembly is subjected to humidity cycling due to variation of inlet gas RH and/or flow rate. Cyclic mem…
The Dynamics of Platinum Precipitation in an Ion Exchange Membrane
S. F. Burlatsky, M. Gummalla, V. V. Atrazhev +3
Microscopy of polymer electrolyte membranes that have undergone operation under fuel cell conditions, have revealed a well defined band of platinum in the membrane. Here, we propos…
Surface tension model for surfactant solutions at the critical micelle concentration
S. F. Burlatsky, V. V. Atrazhev, D. V. Dmitriev +5
A model for the limiting surface tension of surfactant solutions (surface tension at and above the critical micelle concentration, cmc) was developed. This model takes advantage of…
Stalled phase transition model of high-elastic polymer
V. V. Atrazhev, S. F. Burlatsky, D. V. Dmitriev +1
The microscopic model of semi-crystalline polymer in high-elastic state is proposed. The model is based on the assumption that, below the melting temperature, the semi-crystalline…