Results 31 to 40 of about 6,130,130 (256)

Experimental Study on the Evaporation and Condensation Heat Transfer Characteristics of a Vapor Chamber

open access: yesEnergies, 2018
A vapor chamber can meet the cooling requirements of high heat flux electronic equipment. In this paper, based on a proposed vapor chamber with a side window, a vapor chamber experimental system was designed to visually study its evaporation and ...
Yanfei Liu   +4 more
doaj   +1 more source

Variable Stiffness Conductive Composites by 4D Printing Dual Materials Alternately

open access: yesMicromachines, 2022
Materials that can be designed with programmable properties and which change in response to external stimuli are of great importance in numerous fields of soft actuators, involving robotics, drug delivery and aerospace applications.
Fei Long   +4 more
doaj   +1 more source

Heat Transfer Performance Potential with a High-Temperature Phase Change Dispersion

open access: yesEnergies, 2021
Phase change dispersions are useful for isothermal cooling applications. As a result of the phase changes that occur in PCDs, they are expected to have greater storage capacities than those of single-phase heat transfer fluids.
Ludger Fischer   +7 more
doaj   +1 more source

HVDC Converter Cooling System with a Phase Change Dispersion

open access: yesFluids, 2021
High voltage direct current converters require efficient cooling of thyristors via heat sinks. Currently, infrastructures use deionised water as a means of cooling the high voltage direct current converters; however, recent research has shown that other ...
Ludger Fischer   +6 more
doaj   +1 more source

Plasma Electrolytic Polishing of Porous Nitinol Structures

open access: yesPlasma, 2022
In this study, for the first time, the application of plasma electrolytic polishing (PEP) of porous Nitinol structures, mimicking a trabecular bone structure, that were additively manufactured, is reported.
Kristina Navickaitė   +7 more
doaj   +1 more source

Effects of Discontinuous Thermal Conductivity of a Substrate Surface on Ice Adhesion Strength

open access: yesJournal of Marine Science and Engineering, 2021
This study proposes a novel anti-icing model in which silicone rubber with low thermal conductivity is coated at different positions on a material surface to change the continuity of the thermal conductivity of the surface.
Tingkun Chen   +5 more
doaj   +1 more source

Switching Casimir forces with Phase Change Materials [PDF]

open access: yes, 2010
We demonstrate here a controllable variation in the Casimir force. Changes in the force of up to 20% at separations of ~100 nm between Au and AgInSbTe (AIST) surfaces were achieved upon crystallization of an amorphous sample of AIST.
B. J. Kooi   +11 more
core   +5 more sources

On the Development of Material Constitutive Model for 45CrNiMoVA Ultra-High-Strength Steel

open access: yesMetals, 2019
For the implementation of simulations for large plastic deformation processes such as cutting and impact, the development of the constitutive models for describing accurately the dynamic plasticity and damage behaviors of materials plays a crucial role ...
Xin Hu   +3 more
doaj   +1 more source

Three-Dimensional Trajectory and Impingement Simulation of Ice Crystals Considering State Changes on the Rotor Blade of an Axial Fan

open access: yesAerospace, 2023
Ice crystal icing occurs in jet engine compressors, which can severely degrade jet engine performance. In this study, we developed an ice crystal trajectory simulation, considering the state changes of ice crystals with a forced convection model ...
Koichiro Hirose   +3 more
doaj   +1 more source

Nonvolatile plasmonics based on optically reprogrammable phase change materials [PDF]

open access: yesarXiv, 2021
We propose here a new platform for a realization of novel nonvolatile optical switching devices that takes an advantage of high field confinement provided by plasmonics and multi-state programming capabilities of chalcogenide phase change materials.
arxiv  

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