Designing L21-strengthened Al-Cr-Fe-Ni-Ti complex concentrated alloys for high temperature applications

WC Kim, MY Na, HJ Kwon, YS Na, JW Won, HJ Chang… - Acta Materialia, 2021 - Elsevier
For alloys with nanoprecipitate/matrix microstructures, the lattice coherency between the
two phases plays an important role in determining the mechanical performances at high …

Thermal conductivity reduction and thermoelectric figure of merit increase by embedding nanoparticles in crystalline semiconductors

W Kim, J Zide, A Gossard, D Klenov, S Stemmer… - Physical review …, 2006 - APS
Atomic substitution in alloys can efficiently scatter phonons, thereby reducing the thermal
conductivity in crystalline solids to the “alloy limit.” Using In 0.53 Ga 0.47 As containing ErAs …

Preparation of carbon fibers from a lignin copolymer with polyacrylonitrile

SP Maradur, CH Kim, SY Kim, BH Kim, WC Kim… - Synthetic Metals, 2012 - Elsevier
In this study, we have developed an economically viable and technologically sound process
for the production of low-cost carbon fibers (CFs) made of lignin copolymer with acrylonitrile …

Fabrication and characterization of a nanowire/polymer-based nanocomposite for a prototype thermoelectric device

AR Abramson, WC Kim, ST Huxtable… - Journal of …, 2004 - ieeexplore.ieee.org
This paper discusses the design, fabrication and testing of a novel thermoelectric device
comprised of arrays of silicon nanowires embedded in a polymer matrix. By exploiting the low-…

A phase 2 multicenter study of stereotactic body radiotherapy for hepatocellular carcinoma: Safety and efficacy

…, JH Kim, AR Chang, Y Park, ES Kim, WC Kim… - Cancer, 2020 - Wiley Online Library
Background Although several prospective studies have reported the efficacy of stereotactic
body radiotherapy (SBRT) for hepatocellular carcinoma (HCC), treatment‐related toxicity …

Band degeneracy, low thermal conductivity, and high thermoelectric figure of merit in SnTe–CaTe alloys

…, NA Mecholsky, J Hwang, W Kim… - Chemistry of …, 2016 - ACS Publications
Pure lead-free SnTe has limited thermoelectric potentials because of the low Seebeck
coefficients and the relatively large thermal conductivity. In this study, we provide experimental …

Strategies for engineering phonon transport in thermoelectrics

W Kim - Journal of Materials Chemistry C, 2015 - pubs.rsc.org
In this review, we discuss some of the representative strategies of phonon engineering by
categorizing them into the methods affecting each component of phonon thermal conductivity, …

Right sizes of nano-and microstructures for high-performance and rigid bulk thermoelectrics

…, C Kang, J Hwang, K Kim, J Kim… - Proceedings of the …, 2014 - National Acad Sciences
In this paper, we systematically investigate three different routes of synthesizing 2% Na-doped
PbTe after melting the elements: (i) quenching followed by hot-pressing (QH), (ii) …

Comparison of the 3ω method and time-domain thermoreflectance for measurements of the cross-plane thermal conductivity of epitaxial semiconductors

YK Koh, SL Singer, W Kim, JMO Zide, H Lu… - Journal of Applied …, 2009 - pubs.aip.org
The 3 ω technique and time-domain thermoreflectance (TDTR) are two experimental methods
capable of measuring the cross-plane thermal conductivity of thin films. We compare the …

Phonon scattering cross section of polydispersed spherical nanoparticles

W Kim, A Majumdar - Journal of Applied Physics, 2006 - pubs.aip.org
An approximate analytical solution is proposed to estimate the phonon scattering cross
section of polydispersed spherical nanoparticles. Using perturbation of the Hamiltonian due to …