Dongyang Li

Biography

Dongyang Li is a professor belongs to the department of Chemical and Materials Engineering from the university of Alberta.

Research Interest

Dr. D.Y. Li has conducted extensive research in surface/interface science and materials engineering with a wide range of topics: 1) the correlation between the electron behavior and material properties, and development of electron work function – based methodology/approaches for material design; 2) Surface engineering, wear and corrosion control, 3) computational materials science and tribology, 4) Bacteria-metal surface interaction, and 5) photocatalytic nanotubular films. Since joined University of Alberta, Dr. Li has developed a highly recognized Surface and Wear program. Dr. Li has in excess of 320 technical publications including two-hundred and eighty referred journal publications. He is a contributor/co-author to the Smithells Metals Reference Book (8th edition, 2004, Elsevier Ltd., UK), Encyclopedia of Tribology (Springer, 2013, ISBN0387928960) and ASM handbook on Abrasive Wear. The following are research subjects of his recent studies: Development of electron work function (EWF) – based strategies for material design: -- Correlation between mechanical properties of nanocrystalline and amorphous materials and their electron behavior via the electron work function -- EWF, surface adhesion behavior, and the affinity of materials for bacterial biofilms -- Effects of lattice imperfections and surface crystal orientation on EWF and related electrochemical stability -- EWF- nano-tribological diagnosis -- Interfacial EWF and interfacial bond strength of materials -- EWF-based approaches for material design and EWF mapping with multi-mode AFM and scanning Kelvin probe for identification of beneficial and detrimental micro/nano-phases -- Dependence of EWF on temperature and corresponding changes in properties of materials -- Tailoring Mg alloys based on EWF Materials behavior in surface tribological failure processes: -- Surface alloying and nanocrystallization for enhanced resistances to corrosion, wear and corrosive wear -- Novel tribo materials with structural hierarchy and self-stress adjusting capability -- High-entropy nanostructured High-Cr cast irons, alloys and pipeline steels for the oil and oil sands industries. -- Baushinger’s effect in tribological and machining processes -- Dislocation dynamics and effects of strain rate on wear in aggressive environments -- Corrosion-wear synergy, high-T wear and control using rare-earth elements -- Quantitative determination of interfacial bond strength of protective coatings and composites Computational materials science and surface processes -- Investigate wear, corrosive wear and friction using a micro-scale dynamic model (MSDM) -- Molecular dynamic simulation of structure evolution and the mechanical behavior of nano-material systems -- First-principle calculation of electron work function and corresponding material and interfacial properties -- Phase-fieldmodelingmicrostructure evolution, and simulation of textural growth -- Microtubule motion, the coordination of biological motors and related statistic problems Biological surface interactions and materials -- Interaction between bio-films and surface of implant materials and related electronic mechanisms -- Reduction in electron activity by surface nanocrystallization of implants to diminish bio-films’ adherence -- Surface nanocrystallization with anti-bacteria agents for control bacterial biofilms on solids -- Investigation of dynein protein–microtubule interaction for potential nano-bio-machine systems -- Self-organization sliding of microtubules driven by biological motors Surface phenomena related to photocatalytic nanotubular films and techniques -- in situ thermo-electrochemical synthesis of TiO2 nanotubular films for effective solar energy utilization -- Solar spectrum analysis and the efficiency of solar energy conversion based on in situ EWF monitoring -- Degradation of toxic organic substances by photocatalytic nanotubular films -- Relation between work function and photocatalytic behavior of element-doped TiO2 nanotubular films -- Develop an electron work function – light illumination technique for photocatalytic film characterization -- Conductive peptide incorporated TiO2 nanotubes with improved mechanical and photocatalytical properties.