N
Nicholas A. Roberts
Researcher at Utah State University
Publications - 48
Citations - 973
Nicholas A. Roberts is an academic researcher from Utah State University. The author has contributed to research in topics: Thermal conductivity & Phonon. The author has an hindex of 15, co-authored 45 publications receiving 859 citations. Previous affiliations of Nicholas A. Roberts include Vanderbilt University & University of Tennessee.
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Journal ArticleDOI
A review of thermal rectification observations and models in solid materials
Nicholas A. Roberts,D. G. Walker +1 more
TL;DR: Thermal rectification is a phenomenon in which thermal transport along a specific axis is dependent upon the sign of the temperature gradient or heat current as discussed by the authors, which offers improved thermal management of electronics as size scales continue to decrease.
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Convective Performance of Nanofluids in Commercial Electronics Cooling Systems
Nicholas A. Roberts,D. G. Walker +1 more
TL;DR: In this article, the authors investigated the performance of different volume loadings of water-based alumina nanofluids in a commercially available electronics cooling system and showed an enhancement in convective heat transfer due to the addition of nanoparticles in the commercial cooling system.
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Enhanced material purity and resolution via synchronized laser assisted electron beam induced deposition of platinum
Nicholas A. Roberts,Nicholas A. Roberts,Jason D. Fowlkes,Gregory A. Magel,Philip D. Rack,Philip D. Rack +5 more
TL;DR: The LAEBID process demonstrates improved deposit resolution by ~25% compared to EBID structures under the conditions investigated in this work, and localized, spatially overlapping electron and photon pulses enable the thermal desorption of the reaction by-product while mitigating issues associated with bulk substrate heating.
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Purification of nanoscale electron-beam-induced platinum deposits via a pulsed laser-induced oxidation reaction.
Michael G. Stanford,Brett B. Lewis,Joo Hyon Noh,Jason D. Fowlkes,Nicholas A. Roberts,Harald Plank,Philip D. Rack,Philip D. Rack +7 more
TL;DR: Remarkably fast purification is realized at cumulative laser exposure times of less than 1 s, and the purification rate is a function of the PtC5 thickness and laser pulse width in the ranges studied.
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Hierarchical nanoparticle ensembles synthesized by liquid phase directed self-assembly.
Jason D. Fowlkes,Nicholas A. Roberts,Yueying Wu,Javier A. Diez,Alejandro G. González,Chris Hartnett,Kyle Mahady,Shahriar Afkhami,Lou Kondic,Philip D. Rack,Philip D. Rack +10 more
TL;DR: A liquid metal filament supported on a dielectric substrate was directed to fragment into an ordered, mesoscale particle ensemble, forcing the development of a single unstable mode from the otherwise disperse, multimodal Rayleigh-Plateau instability.