10 citations · 35 across the 16 of their papers we have counts for
16 papers
Grain boundary-limited thermal transport in suspended thin graphite across an unexplored thickness regime
Wonjae Jeon, Yu Pei, Xun Li +3
We present systematic thermal conductivity measurements of suspended thin graphite ribbons, 234-527 nm thick, using a four-probe 3-omega method. Unlike recent reports of phonon hyd…
21-Component Compositionally Complex Ceramics: Discovery of Ultrahigh-Entropy Weberite and Fergusonite Phases and a Pyrochlore-Weberite Transition
Mingde Qin, Heidy Vega, Dawei Zhang +4
Two new high-entropy ceramics (HECs) in the weberite and fergusonite structures, along with unexpected formation of ordered pyrochlore phases with ultrahigh-entropy compositions an…
Discovery of a reversible redox-induced order-disorder transition in a 10-cation compositionally complex ceramic
Dawei Zhang, Yan Chen, Tianshi Feng +4
This study discovers a reversible order-disorder transition (ODT) in a 10-cation compositionally complex ceramic, (Nd0.15Pr0.15Dy0.8Ho0.8Er0.8Ti0.2Yb0.1Hf0.1Zr0.1Nb0.8)O7-delta, in…
Electrostatic Force Suspended-Air Multilayer (EPAM) Structure for Highly Transparent Energy Efficient Windows
Ying Zhong, Rui Kou, Renkun Chen +1
The poor thermal insulating building windows, especially single pane windows, are wasting ~7% of the total energy consumed by the U.S. every year. This paper presents an electrosta…
Thermal Conductivity Modeling of Monodispersed Microspheres using Discrete Element Method
Jian Zeng, Ka Man Chung, Xintong Zhang +4
Particle beds are widely used in various systems and processes, such as particle heat exchangers, granular flow reactors, and additive manufacturing. Accurate modeling of thermal c…
Measurement and Analysis of Thermal Conductivity of Ceramic Particle Beds for Solar Thermal Energy Storage
Ka Man Chung, Jian Zeng, Sarath Reddy Adapa +6
A systematic study was performed to measure the effective thermal conductivity of ceramic particle beds, a promising heat transfer and thermal energy storage media for concentratin…
In-situ Thermal Transport Measurement of Flowing Fluid using Modulated Photothermal Radiometry
Jian Zeng, Ka Man Chung, Sarath Reddy Adapa +2
In situ thermal transport measurement of flowing fluid could be useful for the characterization and diagnosis of practical thermal systems such as fluid heat exchangers and thermal…
Short-Range Order and Origin of the Low Thermal Conductivity in Compositionally Complex Rare-Earth Niobates and Tantalates
Andrew J. Wright, Qingyang Wang, Yi-Ting Yeh +5
Rare-earth niobates and tantalates possess low thermal conductivities, which can be further reduced in high-entropy compositions. Here, a large number of 40 compositions are synthe…
Single-Phase Duodenary High-Entropy Fluorite/Pyrochlore Oxides with an Order-Disorder Transition
Andrew J. Wright, Qingyang Wang, Chongze Hu +3
Improved thermomechanical properties have been reported for various high-entropy oxides containing typically five metal cations. This study further investigates a series of duodena…
Measurement of High-temperature Thermophysical Properties of Bulk and Coatings Using Modulated Photothermal Radiometry
Jian Zeng, Ka Man Chung, Qingyang Wang +4
This paper presents the development of instrumentation for the measurement of high-temperature thermal conductivity of bulk and coatings using a modulated photothermal radiometry (…
Thermal Insulating Polymer-Air Multilayer for Window Energy Efficiency
Rui Kou, Ying Zhong, Qingyang Wang +3
Polymer-air multilayer (PAM) was developed to decrease the heat loss through window glass panes. A PAM consists of a few polymer films separated from each other by air gaps. Thanks…
Transition between Thin Film Boiling and Evaporation on Nanoporous Membranes Near the Kinetic Limit
Qingyang Wang, Yang Shi, Renkun Chen
Nanoporous structures including single nanopores and nanoporous membranes have been utilized as a platform to study fundamental liquid-vapor phase change heat transfer (PCHT) proce…
From High-Entropy Ceramics to Compositionally-Complex Ceramics: A Case Study of Fluorite Oxides
Andrew J. Wright, Qingyang Wang, Chuying Huang +3
Using fluorite oxides as an example, this study broadens high-entropy ceramics (HECs) to compositionally-complex ceramics (CCCs) or multi-principal cation ceramics (MPCCs) to inclu…
Size Disorder as a Descriptor for Predicting Reduced Thermal Conductivity in Medium- and High-Entropy Pyrochlores
Andrew J. Wright, Qingyang Wang, Shu-Ting Ko +3
High-entropy ceramics generally exhibit reduced thermal conductivity, but little is known about what controls this suppression and which descriptor can predict it. Herein, 18 mediu…
Unusually High and Anisotropic Thermal Conductivity in Amorphous Silicon Nanostructures
Soonshin Kwon, Jianlin Zheng, Matthew C. Wingert +2
Amorphous Si (a-Si) nanostructures are ubiquitous in numerous electronic and optoelectronic devices. Amorphous materials are considered to possess the lower limit to the thermal co…
Fluid-like Surface Layer and Its Flow Characteristics in Glassy Nanotubes
Matthew C. Wingert, Soonshin Kwon, Shengqiang Cai +1
We observed strongly size-dependent viscoelasticity in amorphous SiO2 and Si nanotubes with shell thickness down to ~8 nm. A core-shell model shows that a ~1 nm thick fluid-like su…