Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 33 for “"thermal interface"”.
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Experimental investigations of solid-solid thermal interface conductance
Understanding thermal interface conductance is important for nanoscale systems where interfaces can play a critical role in heat transport. In this thesis, pump and probe transient thermoreflectance methods are used to measure the thermal interface conductance between solid materials. Two …
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Analysis and simulation of carbon-based thermal interface material
The student, Michael Jo, submitted this Dissertation for approval on 2018-07-11 at 12:35.
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Analysis of Direct-Soldered Power Module / Heat Sink Thermal Interface for Electric Vehicle Applications
Reducing the thermal impedance between power module and heat sink is important for high-power density, low-cost inverter applications. Mounting a power module by directly soldering it onto a heat sink can significantly reduce the thermal impedance at the module / heat sink interface, as compared to …
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System Design, Fabrication, and Characterization of Thermoelectric and Thermal Interface Materials for Thermoelectric Devices
… characterize the electrical conductivity, thermal conductivity, and the Seebeck coefficient over the temperature range of potential use. However, despite considerable research on thermoelectric materials for decades, there is still significant scatter and disagreement in the literature …
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Wear-resistant thermal interface material (TIM) for quad/octal small form factor pluggable (QSFP/OSFP) modules
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01
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Thermal and thermo-mechanical performance of voided lead-free solder thermal interface materials for chip-scale packaged power device
The need to maximise thermal performance of electronic devices coupled with the continuing trends on miniaturization of electronic packages require innovative package designs for power devices and modules such as Electronic Control Unit (ECU). Chip scale packaging (CSP) technology offer promising …
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Packaging designs for ultraviolet light emitting diodes
… emission wavelength. With this regard, effective thermal management in these devices depends on the removal of this heat and reduction of the junction temperature. This is achieved by decreasing the package thermal resistance from junction-to-air with cost-effective solutions. The use of heat …
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Experimental studies of heat transport across material interfaces at the nano and micro scales
… to have precise knowledge of materials' thermal properties at the nano and micro scales. Here we present a series of experimental studies of heat transport for two different types of material: a two dimensional (2D) material such as MoS2 and micron scale particles. We used frequency …
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Atomistic and mesoscopic simulations of heat transfer across heterogeneous material interfaces
<p>The study of heat transfer and the associated thermal interface resistance at heterogeneous material interfaces is over 70 years old since the first measurements of thermal interface resistance by Kapitza in 1941. However, recent developments in experimental metrology techniques that enable …
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Advanced Thermal Management Strategies – Scalable Coal-Graphene based TIMs and Additively Manufactured Heat Sinks
… and high performance in electronics, thermal management is a very important area of research today. In multiple applications such as portable electronics, consumer electronics, military applications, automobile, power electronics, high performance computing, etc. innovative thermal …
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Heat transfer in nano/micro multi-component and complex fluids with applications to heat transfer enhancement
Thermal properties of complex suspension flows are investigated using numerical computations. The objective is to develop an efficient and accurate computational method to investigate heat transport in suspension flows. The method presented here is based on solving the lattice Boltzmann equation …
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Characterizing the Thermal Behavior of Pyrolytic Graphite Sheets (PGS) at Low Interface Pressures
… has led the Navy to pursue the design of a dry interface liquid cooling system to cool the iPEBB. This means that no liquid can cross the boundary of the iPEBB and thus the cooling system must be separate. In this thesis, an integral portion of the dry interface cooling solution, the thermal …
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Investigation of thermal management options for robots
This thesis research studies the thermal challenges of robots and evaluates the potential thermal management options. In this regard, it aims to develop and analyze various thermal management options for robotic systems. Ten different thermal management options are investigated theoretically in …
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Optical characterization of thermal transport from the nanoscale to the macroscale
The thermal properties of thin films and material interfaces play an important role in many technologies such as microelectronics and solid-state energy conversion. This thesis examines the characterization of thermal transport over length scales from nanometers upward in solids and liquids using …
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On-Chip Isotropic Microchannels for Cooling Three Dimensional Microprocessors
… number of 525. These channels also have a lower thermal resistance compared to external heat sinks because there is no heat spreader or thermal interface material layer.
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Carbon nanotube thermal interfaces and related applications
<p>The development of thermal interface materials (TIMs) is necessitated by the temperature drop across interfacing materials arising from macro and microscopic irregularities of their surfaces that constricts heat through small contact regions as well as mismatches in their thermal properties. …
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Controlling the structure and dynamics of magnetoresponsive particle suspensions for enhanced transport phenomena
… for directed heat transport for use as advanced thermal interface materials; the stimulation of emergent dynamics in platelet suspensions, which give rise to field-controllable flow lattices; and the creation of vortex fluids that possess a uniform torque density, enabling such strange behaviors …
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Nano-scale Heat Transfer in Nanostructures: Toward Understanding and Engineering Thermal Transport
… little progress in understanding the defects–thermal transport property relationship. Using novel numerical techniques and large-scale computations performed on modern supercomputers, I have studied heat transport in nanomaterials containing various defects and mechanical deformations. From …
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Convection and Flow Boiling in Microgaps and Porous Foam Coolers
… component and which eliminates the problematic thermal resistance of the commonly-used thermal interface material (TIM), is examined. The single phase heat transfer and pressure drop results of water are used to validate a detailed numerical model and, together with the convective FC-72 data, …
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