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Young Ninja Group (ages 3-5)

공개·회원 10명
Parker Thomas
Parker Thomas

Atomic Molecular Physics Rajkumar Pdf 37

Research InterestsMy research focuses on the organization of the microscopic interactions between atoms and molecules in condensed phases of materials including biomaterials. This research involves large scale dynamical simulations of systems in condensed phases, computational statistical mechanics algorithms, physics of elemental and molecular clusters, development of model potentials and molecular dynamics modeling, applications of quantum chemistry to nanoscience, and machine learning discovery in solid state and soft materials including biomaterials.

atomic molecular physics rajkumar pdf 37

Development of ceramic nanoparticles with improved properties has been studied with much success in several areas such as synthesis and surface science. Examples of ceramic are silica, alumina, titania, zirconia, silicon nitride, silicon carbide, and so forth. Advancement in nanotechnology has led to the production of nanosized silica, SiO2, which has been widely used as filler in engineering composite. The silica particles extracted from natural resources contains metal impurities and not favorable for advanced scientific and industrial applications. Thus, focus is given to synthetic silica (colloidal silica, silica gels, pyrogenic silica, and precipitated silica), which is pure and produced mostly in amorphous powder forms compared to natural mineral silica (quartz, tridymite, cristobalite) which are in crystalline forms [6]. As shown in Figure 1, various methods that have been used to obtain silica particles can be categorized into two main approaches: top-down and bottom-up [2, 7]. Top-down is characterized by reducing the dimension of the original size by utilizing special size reduction techniques (physical approach). Bottom-up or chemical approach involves a common route used to produce silica nanoparticles from atomic or molecular scale. Some of the widely used methods to synthesize silica nanoparticles are sol-gel process, reverse microemulsion, and flame synthesis. The sol-gel process is widely used to produce pure silica particles due to its ability to control the particle size, size distribution and morphology through systematic monitoring of reaction parameters.


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