Arden Moore

Arden Moore
Louisiana Tech University | Louisiana Tech · Department of Mechanical Engineering

PhD, Mechanical Engineering

About

61
Publications
16,573
Reads
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5,412
Citations
Additional affiliations
August 2005 - May 2010
University of Texas at Austin
Position
  • Research Assistant

Publications

Publications (61)
Article
Diabetic individuals need simple, accurate, and cost effective means by which to independently assess their glucose levels in a non-invasive way. In this work, a sensor based on randomly oriented CuO nanowire networks supported by a polyethylene terephthalate thin film is evaluated as a flexible, transparent, non-enzymatic glucose sensing system an...
Article
Large quantities of high aspect ratio copper nanowires were synthesized from copper chloride using a simple solution-based method. The thermal conductivity of copper nanowire /polydimethylsiloxane and copper nanowire/polyurethane composites at different volume percentage loading from 0 to 4.1 % were studied. At the highest loading, the thermal cond...
Conference Paper
Traditional thermal management techniques such as air-cooled plate- and pin-fin heat sinks are today being pushed to their limits by the increasing power densities of computing hardware (power supplies, controllers, processors, and integrated circuits). In comparison, direct immersion cooling within an alternative cooling medium such as commercial...
Article
Full-text available
Hexagonal boron nitride (h-BN) is a high temperature ceramic material with a graphite-like layered atomic arrangement and excellent basal-plane thermal conduction properties. Unlike graphite, however, h-BN is electrically insulating and possesses superior chemical stability, thereby making it attractive for many applications for which carbon allotr...
Article
Full-text available
The rapid development of faster, cheaper, and more powerful computing has led to some of the most important technological and societal advances in modern history. However, the physical means associated with enhancing computing capabilities at the device and die levels have also created a very challenging set of circumstances for keeping electronic...
Article
In patterned thin film devices, abrupt geometric changes can introduce thermal constriction and expansion resistances whose magnitude and relative importance depends on the device's size and geometry as well as the dominant heat carrier mean free path spectra of the comprising material. Existing analytical models of thermal constriction and expansi...
Article
Melt pool temperature is a critical parameter for the majority of additive manufacturing processes. Monitoring of the melt pool temperature can facilitate the real-time detection of various printing defects such as voids, over-extrusion, filament breakage, clogged nozzle, etc. that occur either naturally or as the result of malicious hacking activi...
Article
The ability to track the spatial location of a moving multiphase contact line in time significantly enhances understanding into the fundamental physics behind biological processes, condensation- and evaporation-based heat transfer, and a host of other important phenomena. In this work, we present a capacitance-based microdevice capable of tracking...
Article
Within the broad field of micro- and nano- scale surface modification to improve pool boiling performance, micro-fin arrays are especially attractive due to their ability to significantly increase wetted surface area with minimal increase in size or weight compared to macroscopic fins. In addition, their regular and repeating geometry enables great...
Article
This work examines the effect of using low-ionic strength zwitterionic buffer and post-deposition thermal annealing on the microstructure and thermal conductivity of continuous nanocrystalline diamond films that are deposited via the directed covalent assembly of detonation nanodiamonds. Variation of the zwitterionic buffer pH was found to tune the...
Article
Full-text available
This work presents a novel counter-flow design for stabilizing microfluidic thermal reactors. In such devices, the substrate material is held in an unchanging thermal state while any combination of isothermal and gradient regions may be enacted on the surface region, all of which are stable in time. When such a state is achieved, precise control of...
Article
The grain size effect on the thermal transport properties of hexagonal boron nitride (h-BN) thin films was experimentally investigated using the opto-thermal Raman technique. High-quality monolayer h-BN with mean grain sizes ranging from~7μm to~19nm were successfully synthesized on Pt foil by chemical vapor deposition (CVD). The thermal conductivit...
Article
The wide-spread use of polycrystalline diamond thin films is limited by the costs associated with chemical vapor deposition, high growth temperature, and poor substrate adhesion. Here, a solution-phase method to grow nanocrystalline diamond films is demonstrated through carbodiimide-mediated cyclic attachment of carboxylated nanodiamonds and a diam...
Article
This study presents a fabrication method to create various 3-D printable acrylonitrile butadiene styrene (ABS) composite filaments designed for thermal applications and improved heat transfer versus typical plastics. Thermal conductivity data and scanning electron microscope (SEM) images are presented and discussed to discern filler morphology and...
Article
The in-plane thermal conductivity of cellulose nanocrystal (CNC) – poly(vinyl alcohol) (PVA) composite films containing different PVA molecular weights, CNC loadings and varying order parameters (S) were investigated as an eco-friendly, renewable and sustainable alternative to commonly used petroleum-based polymeric materials for potential applicat...
Article
In this work, a four-person student team was given the challenge of designing, analysing, constructing, and testing a low-altitude unmanned aerial vehicle (UAV) prototype, which could meet or exceed a set of predefined performance requirements including range, altitude, time of flight, and load-carrying capability. In addition, the team was tasked...
Article
Full-text available
This study characterizes the microstructure and temperature dependence of resistance of two commercially available electrically conductive polylactic acid (PLA) composites for fused deposition modeling (FDM): PLA-carbon black and PLA-graphene. No microstructural changes were observed between the filament and the printed parts; however, the resistiv...
Data
Supporting Information: Study the effect of using hBN as an underlying dielectric insulator in graphene solution gated FET devices
Article
The charge transport in solution‐gated graphene devices is affected by the impurities and disorder of the underlying dielectric interface and its interaction with the solution. Advancement in field‐effect ion sensing by fabricating a dielectric isomorph, hexagonal boron nitride between graphene and silicon dioxide of a solution‐gated graphene field...
Article
A novel high temperature, multi-functional thermal sensor is presented which is capable of being batch-produced using industry standard microfabrication techniques. The thin film thermocouple and thermopile features were designed to provide both surface temperature and surface heat flux data simultaneously. In addition, its small size allows for in...
Article
Fused deposition modeling (also known as 3-D printing) utilizes a molten plastic filament passed through a heated nozzle to fabricate a three-dimensional object. Various printer settings (i.e. layer height, fill density, print speed, nozzle diameter) of a 3-D printer can be adjusted, which on a macro scale affect the print time and test piece finis...
Article
Full-text available
Thermal energy storage (TES) has been a significant contributor to energy efficiency and solar energy sources on the macro-scale for decades. Recently, there has been increased interest in this energy storage technique for small-scale applications. Such applications present an opportunity for solutions that interface with devices like thermoelectri...
Article
The ability of graphene to serve as an ultrathin heat spreader has been previously demonstrated with impressive results. However, graphene is electrically conductive, making its use in contact with electronic devices problematic from a reliability and integration perspective. As an alternative, hexagonal boron nitride (h-BN) is a similarly structur...
Article
Size effects on vibrational modes in complex crystals remain largely unexplored, despite their importance in a variety of electronic and energy conversion technologies. Enabled by advances in a four-probe thermal transport measurement method, we report the observation of glass-like thermal conductivity in ~20 nm thick single crystalline ribbons of...
Article
Due to its high thermal conductivity, chemical stability, and electrically insulating nature, hexagonal boron nitride (h-BN) is a versatile material used in a wide range of demanding applications. Currently, commercial h-BN is manufactured as microparticles to be sintered or hot pressed into the desired shape, while for composite applications the m...
Conference Paper
This paper presents new equations for simulating three-dimensional convective heat transfer using the complete viscous dissipation function in the energy equation to account for the viscous heating and incorporating the Boussinesq approximation for the thermal buoyancy term in the Navier-Stokes equations. In addition, new implementation of fourth o...
Conference Paper
Waste heat is a major energy loss in manufacturing facilities. Thermally conductive polymer composite heat exchangers could be utilized in the ultralow temperature range (below 200° C) for waste heat recovery. Fused deposition modeling (FDM), also known as three-dimensional (3-D) printing, has become an increasingly popular technology and presents...
Article
This paper presents new formulation for simulating three-dimensional convective heat transfer by incorporating the complete viscous dissipation function in the energy equation to account for viscous heating and adopting the Boussinesq approximation for the thermal buoyancy term in the Navier-Stokes equations. In addition, new implementation of four...
Article
This paper presents new formulation for simulating three-dimensional convective heat transfer by incorporating the complete viscous dissipation function in the energy equation to account for viscous heating and adopting the Boussinesq approximation for the thermal buoyancy term in the Navier-Stokes equations. In addition, new implementation of four...
Article
This paper presents new formulation for simulating three-dimensional convective heat transfer by incorporating the complete viscous dissipation function in the energy equation to account for viscous heating and adopting the Boussinesq approximation for the thermal buoyancy term in the Navier-Stokes equations. In addition, new implementation of four...
Article
Microscale fin array structures were replicated onto surfaces of aluminum 1100 and aluminum 6061 alloy (Al1100/Al6061) sheet metals through room-temperature instrumented roll molding. Aluminum-based micro fin arrays were replicated at room temperature, and the fabrication process is one with high throughput and low cost. One-dimensional (1D) micro...
Conference Paper
This paper presents a computational approach for simulating three dimensional fluid flow and convective heat transfer involving viscous heating and Boussinesq approximation for buoyancy term. The algorithm was implemented with a modal spectral element method for accurate resolutions to coupled nonlinear partial differential equations. High order ti...
Conference Paper
Full-text available
Over the past decade, many initiatives have been developed and published regarding innovative freshman engineering programs aimed at increasing experiential learning and promoting student success 1-4. The primary goal of these efforts are generally to improve student understanding, confidence, performance, and retention. These programs have proven...
Article
In this work, the ability of a foam-like hierarchical hexagonal boron nitride (h-BN) nanomaterial to act as a scalable surface modifier for improved pool boiling performance is investigated. The h-BN foam samples were grown using an atmospheric pressure chemical vapor deposition process onto the surfaces of open-cell nickel foam followed by selecti...
Article
Full-text available
Thermal transport in suspended graphene samples has been measured in prior works and this work with the use of a suspended electro-thermal micro-bridge method. These measurement results are analyzed here to evaluate and eliminate the errors caused by the extrinsic thermal contact resistance. It is noted that the room-temperature thermal resistance...
Patent
Full-text available
An apparatus that is a receptacle adapted for receiving a connector. The apparatus may further include a hinged heat sink included in the receptacle. The hinged heat sink adapted in an open position for insertion and removal of a cable. The hinged heat sink further adapted in a closed position to make thermal contact with a thermally active locatio...
Article
We achieved a multiscale description of the thermal conductivity of cellulose nanocrystals (CNCs) from single CNCs (~ 0.72 - 5.7 Wm-1K-1) to their organized nanostructured films (~ 0.22 - 0.53 Wm-1K-1) using experimental evidence and molecular dynamics (MD) simulation. The ratio of the approximate phonon mean free path (~1.7-5.3 nm) to the lateral...
Article
Full-text available
Polycrystalline higher manganese silicide (HMS) samples with different grain sizes have been obtained by cold-pressing HMS powder under high pressure of about 3 GPa and postprocessing annealing. It was found that the cold-pressing process can reduce the grain size of HMS to 120 nm. The cold-pressed pellets were then annealed at different temperatur...
Article
There have been reports of improvements in the thermoelectric figure of merit through the use of nanostructured materials to suppress the lattice thermal conductivity. Here, we report on a fundamental study of the combined effects of defect planes and surface scattering on phonon transport and thermoelectric properties of defect-engineered InAs nan...
Article
Full-text available
The thermal conductivity of wurtzite and zinc blende indium arsenide nanowires was measured using a microfabricated device, with the crystal structure of each sample controlled during growth and determined by transmission electron microscopy. Nanowires of both phases showed a reduction of the thermal conductivity by a factor of 2 or more compared t...
Article
Full-text available
We present thermal conductivity measurements of monolayer graphene exfoliated on a silicon dioxide substrate at different temperatures. A nanofabricated resistance thermometer device is developed to measure the thermal conductance of graphene and supporting 300nm thick SiO2 layer, which allows us to extract the thermal conductivity of graphene whil...
Article
Full-text available
We have developed a nanofabricated resistance thermometer device to measure the thermal conductivity of graphene monolayers exfoliated onto silicon dioxide. The measurement results show that the thermal conductivity of the supported graphene is approximately 600 W/m K at room temperature. While this value is lower than the reported basal plane valu...
Article
Using micro-Raman spectroscopy, the thermal conductivity of a graphene monolayer grown by chemical vapor deposition and suspended over holes with different diameters ranging from 2.9 to 9.7 μm was measured in vacuum, thereby eliminating errors caused by heat loss to the surrounding gas. The obtained thermal conductivity values of the suspended grap...
Article
Full-text available
For micro-thermometer devices developed for thermal conductivity measurements of nanowires, it is found using finite element analysis that radiation heat transfer can cause nonlinear temperature profiles in the long supporting beams of the thermometers when the sample stage temperature is considerably higher or lower than room temperature. Although...
Article
Graphene monolayer has been grown by chemical vapor deposition on copper and then suspended over a hole. By measuring the laser heating and monitoring the Raman G peak, we obtain room-temperature thermal conductivity and interface conductance of (370 + 650/−320) W/m K and (28 + 16/−9.2) MW/m2 K for the supported graphene. The thermal conductivity o...
Article
Full-text available
The reported thermal conductivity (κ) of suspended graphene, 3000 to 5000 watts per meter per kelvin, exceeds that of diamond and graphite. Thus, graphene can be useful in solving heat dissipation problems such as those in nanoelectronics. However, contact with a substrate could affect the thermal transport properties of graphene. Here, we show exp...
Article
Full-text available
We report a study of the effect of the growth base pressure on the thermoelectric (TE) properties of indium antimonide (InSb) nanowires (NWs) synthesized using a vapour–liquid–solid method at different base pressures varying from ambient to high vacuum. A suspended device was used to characterize the TE properties of the NWs, which are zinc-blende...
Article
Full-text available
The thermal conductivity of individual bismuth nanowires was characterized using a suspended microdevice and correlated with the crystal structure and growth direction obtained by transmission electron microscopy on the same nanowires. Compared to bulk bismuth in the same crystal direction perpendicular to the trigonal axis, the thermal conductivit...
Article
Full-text available
Carbon nanofibers (CNFs) were incorporated into nylon 11 to form nylon 11-carbon nanofiber nanocomposites via twin screw extrusion. Injection molding has been employed to fabricate specimens that possess enhanced mechanical strength and fire retardancy. The thermal conductivity of these polymer nanocomposites was measured using a guarded hot plate...
Article
Full-text available
The thermoelectric properties and crystal structure of individual electrodeposited bismuth telluride nanowires (NWs) were characterized using a microfabricated measurement device and transmission electron microscopy. Annealing in hydrogen was used to obtain electrical contact between the NW and the supporting Pt electrodes. By fitting the measured...
Article
Full-text available
Higher manganese silicides (HMS) have a relatively high thermoelectric figure of merit (ZT) of about 0.7. HMS nanowires have been synthesized using a chemical vapor deposition method. In this work, the thermoelectric properties of individual HMS nanowires are measured and analyzed to determine the role of size effects on electron and phonon transpo...
Article
Full-text available
The effect of surface roughness on phonon transport in a nanowire has often been described by treating the surface as flat with a specularity parameter (p) in the range between 0 and 1. A lower thermal conductivity limit is approached at p=0 for diffuse surface. It is demonstrated here by Monte Carlo simulation that sawtooth roughness on a nanowire...
Article
Bismuth is a material of special interest for studying nanoscale transport behavior. Its extremely small effective mass and long electron mean free path suggest that quantum and classical confinement effects might be observed at realistic dimensions and higher temperatures than in other material systems. In addition, the predicted enhancement of th...
Article
The Seebeck coefficient, electrical conductivity, and thermal conductivity of individual chromium disilicide nanowires were characterized using a suspended microdevice and correlated with the crystal structure and growth direction obtained by transmission electron microscopy on the same nanowires. The obtained thermoelectric figure of merit of the...
Article
Full-text available
It has been suggested by theoretical calculation that indium antimonide (InSb) nanowires can possess improved thermoelectric properties compared to the corresponding bulk crystal. Here we fabricated a device using electron beam lithography to measure the thermopower and electrical conductivity of an individual InSb nanowire grown using a vapor-liqu...
Article
Full-text available
We have measured the electrical conductance and thermopower of a single InSb nanowire in the temperature range from 5 to 340 K. Below temperature (T) 220 K, the conductance (G) shows a power-law dependence on T and the current (I)–voltage (V) curve follows a power-law dependence on V at large bias voltages. These features are the characteristics of...
Conference Paper
It has been suggested by theoretical calculations that the thermoelectric figure of merit of bismuth (Bi) nanowires can be much higher than the bulk value because of quantum and classical size effects on electron and phonon transport in the nanowire. Recent advances in nanomaterials synthesis and characterization methods have enabled direct experim...

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Projects (2)
Project
To demonstrate the improvement and change in bio-sensing using hexagonal boron nitrite with graphene as a three-terminal FET device.