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Full-Text Articles in Engineering
Separation Of Rare Earth Elements From Aluminum Using Ion-Exchange Chromatography, Shabrina Nurfitriani, Hoon Choi, Nien-Hwa Linda Wang
Separation Of Rare Earth Elements From Aluminum Using Ion-Exchange Chromatography, Shabrina Nurfitriani, Hoon Choi, Nien-Hwa Linda Wang
The Summer Undergraduate Research Fellowship (SURF) Symposium
Demand of rare earth elements (REEs) has increased tremendously due to their key roles in electronics and emerging technology. Recently, new technology was developed at Purdue to extract REEs from coal fly ash. This study is focused on the separation of aluminum ions (Al), a major impurity in the extract, from REEs. The goal is to test the feasibility of an ion-exchange process for separating REEs from a highly-concentrated Al solution. First, we reduced the resin particle size to decrease dispersion and diffusion effects, to increase resin productivity, and to reduce the amounts of REEs and the ion-exchange resin required …
Characterization Of Superabsorbent Polymers In Aluminum Solutions, Nicholas D. Macke, Matthew J. Krafcik, Kendra A. Erk
Characterization Of Superabsorbent Polymers In Aluminum Solutions, Nicholas D. Macke, Matthew J. Krafcik, Kendra A. Erk
The Summer Undergraduate Research Fellowship (SURF) Symposium
Over the past few decades, super absorbent polymers (SAPs) have been the topic of research projects all around the world due to their incredible ability to absorb water. They have applications in everything from disposable diapers to high performance concrete. In concrete, aqueous cations permeate the polymer network, reducing swelling and altering properties. One of these ions, aluminum, alters SAP properties by creating a stiff outer shell and greatly reducing absorbency, but these effects have not been well characterized. One method of characterizing the effects of aluminum on SAP hydrogels was performing gravimetric swelling tests to determine equilibrium water capacity …
Quantum Modeling Of Thermodynamic Properties Of Warm Dense Aluminum, Nicholas Termini, Gennady Miloshesky, Ahmed Hassanein
Quantum Modeling Of Thermodynamic Properties Of Warm Dense Aluminum, Nicholas Termini, Gennady Miloshesky, Ahmed Hassanein
The Summer Undergraduate Research Fellowship (SURF) Symposium
Warm dense matter is attracting a lot of attention in the scientific community, due to its formation during intense laser-matter interaction and inertial confinement fusion. However, there is no accurate solution to mapping out the thermodynamic properties of warm dense matter. Experimental data are also incredibly scarce making computational models an incredibly useful tool. This paper provides equation of state (EOS) data for aluminum at specific densities within the warm dense matter regime. The EOS data were calculated using quantum molecular dynamics, which was performed by the computational package QuatumEspresso. EOS were determined by collecting and recording pressure after achieving …
Altered Combustion Characteristics Of Aluminum Fuels Through Low-Level Fluoropolymer Inclusions With And Without In Situ Nanoaluminum., Courtney K. Murphy, Brandon Terry, Steven F. Son
Altered Combustion Characteristics Of Aluminum Fuels Through Low-Level Fluoropolymer Inclusions With And Without In Situ Nanoaluminum., Courtney K. Murphy, Brandon Terry, Steven F. Son
The Summer Undergraduate Research Fellowship (SURF) Symposium
Aluminum inclusions have been widely used to increase the specific impulse of solid rocket propellant. However, issues arise with the addition of aluminum in the form of agglomeration, which can cause kinetic and thermal losses (i.e., two-phase flow losses) through the nozzle, which can reduce motor performance by as much as 10%. Reduction of agglomerate size may reduce the effect of two-phase flow losses. Polytetrafluoroethylene (PTFE or TeflonTM) inclusions into aluminum via mechanical activation (MA, milling) have been shown to produce a smaller coarse agglomerate size due to microexplosion of the composite particles at the propellant surface. Perflouroalkoxy …
Evolution Of Laser Produced Aluminum Plasma In The Presence Of A Transverse Magnetic Field, Nicholaus Mckenna, Niral Shah, Faisal Odeh, Prasoon Diwakar, Fillipo Genco, Sivanandan Harilal, Syed Hassan, Ahmed Hassanein
Evolution Of Laser Produced Aluminum Plasma In The Presence Of A Transverse Magnetic Field, Nicholaus Mckenna, Niral Shah, Faisal Odeh, Prasoon Diwakar, Fillipo Genco, Sivanandan Harilal, Syed Hassan, Ahmed Hassanein
The Summer Undergraduate Research Fellowship (SURF) Symposium
Surface erosion of plasma-facing components is a very important problem in fusion reactors. In order to make fusion reactors economically viable the lifetime of plasma-facing components must be extended. My research entails using magnetic field interactions with plasma in order to determine how the plasma moves through the field, and if it can be stopped by using a certain orientation of magnetic field. A magnetic field should be able to alter the path of evolving plasma due to the interaction of the magnetic field with the charged particles in the plasma. The optimal orientation for slowing the evolution of the …
Collimation Effects On Magnetically Confined Laser Produced Plasmas, Niral Shah, Nick Mckenna, Faisal Odeh, Prasoon Diwakar, Fillipo Genco, Sivanandan Harilal, Syed Hassan, Ahmed Hassanein
Collimation Effects On Magnetically Confined Laser Produced Plasmas, Niral Shah, Nick Mckenna, Faisal Odeh, Prasoon Diwakar, Fillipo Genco, Sivanandan Harilal, Syed Hassan, Ahmed Hassanein
The Summer Undergraduate Research Fellowship (SURF) Symposium
Tokamaks for fusion research are extremely complex and are still limited by inherent instabilities such as material erosion from plasma instabilities. Due to the lack of data and high demand of resources, simulations to portray Tokamaks are essential. A Particle-In-Cell (PIC) simulation for plasma erosion on materials within the Tokamak is to be benchmarked using the experimental data obtained in these experiments. The effects of an axial magnetic field (magnetic field lines are along the plasma propagation direction) on an expanding laser produced plasma plume are investigated. A Continuum Surelite Nd:YAG laser system at 1064 nm wavelength and 6 ns …